18 Burst results for "stepper Motors"
"stepper motors" Discussed on 3D Printing Today
"Modifications at all. Your doesn't have a direct drive. So yeah you'll have to slow down for flexible you will have to do that And one thing about it. That was basically a spit. Take when i saw it. I know if if our frangieh guy was still around. He'd be screaming about it. And that's both lead screws for the z axis are bound at the top with with the bearings and both lead screws are coupled with their own. Gt to belt. So the lakers are coupled together. Which means if you rotate one lead. Screw the other. Lead skar rotates with ya which which is. I think how it should be designed because if you ha- if you don't have them coupled then you're gantry can go out of out of register of very easily. All it takes is one person walking up to your printer or when the steppers aren't energizing going. Hey this is how it goes up and down like nope. That's only half of it. Goes up and down and now it's you know out of sync. I i remember seeing that happen at the maker. space all all the time with Can't remember the printer. we had. That was an older one like that. So i i think the the the to lead screws should be coupled now do they both have separate stepper motors is. That's an interesting design. I i can see how an engineer take exception to that. But i think in practicality it seems like it works we're going to see because my son's gonna keep printing away on it and if he doesn't i'll be printing away on it like we typically do on this podcast we don't do one show review of it I'm still testing any cubic predator. I'm still testing the tool changer. So you will still here in Information and reviews about this and coming weeks and incoming episodes the good and the bad since. They didn't give it to us. If it stinks we can tell you. It stinks without them. You know getting mad at us because we paid ford Unlike a lot of youtube is out there that get the printer for free and they always give the seem to always give glowing reviews. You got you got to do a review. You've got to be completely impartial here And i saw that with the any predator in particular with the antiquated predator. Things about the predator which are really really really really bad in particular the fact that they painted the pillars that are the risers of the printer and that paint eventually wears off and that ruins print quality. And that's why we are hearing..
"stepper motors" Discussed on Newsradio 1200 WOAI
"Good Are you doing? Good, good and coming out My Chevy Venture 2005. The air conditioning system. It blows cold ice cold all day long until the late afternoon when it's the hottest part of the day On a really hot day. It'll just quit blowing code. It'll start blowing hot, actually. I was on parking under Shane Street, Turn it off and started up in about half an hour and it'll blow cold again. So I'm wondering if you think product really didn't wanna have to go get gay. Just put on all that she in Tehran know for sure that it's necessary. But do you think it's just low on free on or could there be a Content, future sense of causing that, Um, Have you paid any attention? Actually, the temperature on the engine Is that right? When it's doing that? Well, my stepper motors that my temperature gauge, Okay, I know it's a It's a no, no, not to be driving. But I have a light that comes on when the coolant temperature gets, too, because I actually did have a bad water pumped last week, and I'm one of those two mummy related totally related. That's where I'm going with. Um once you have an ace, you have your your radiator in front of that. You're easy, condenser. Well, If the condenser can't cool off a CZ for you know a fan's not coming on or the eight vehicles just running too hot is pulling that hot air right across the sea systems going to take the brunt of it and is going to shut off. So that's why I started blow hot air. So look at your cooling system.
New 3D Printing Extruders Are Coming Your Way
"Time for US talk about Three D. printing again and there are announcements. Well actually they've been announced for a while and hopefully by now we will have some of them of a whole bunch of new extruders souders starting with one which we're GONNA be talking in detail about. I think next time around the time after the zesty nimble they're coming out with their version into and they should have shipped mid December but we all know how dot goes so. Hopefully we have them now. I've ordered three of them for the tool changer. Because the value that they sent me worked so beautifully however I will probably also beginning the second extruder that was announced earlier last year in December actually before December the three D Amirah which was originally called the Hermes. They changed it to Amarah. I wonder what else did a Hermes in three different than could be And and and While the zesty nimble comes with breath Basically just the extruder system and the cable that attached to the stepper the Humira and the next extruder that we're going to mention comes with the stop promoter. Attached the E. Three Homero is Pretty special in that it it customizes the casing of the stepper motor to have within it a dual wheeled a dual Hobday gear extra a feeding system. That has the shortest path from from the gear to the hot end. That I think I've ever seen it's really really interesting. Very very interesting design Kind of a very similar to bonte contact. The both sides of the filament have geared hob gears that are driving it also it has a very interesting heat sink underneath the fan which is designed to drive the air away from the hot end area Very innovative. They put a lot of engineering into do it. We're looking forward to try and get. Unfortunately though in my opinion they use the mid sized stepper motor versus the pancake sized stepper motor odor. Not sure why I need to talk with them more about that. I've heard that they may be coming out with a version with the pancakes is that is the smaller stack. So it's much lighter. Maybe half the weight of the mid sized stepper and in in my experience when I've switched to to these smaller steppers. Yeah the Torque is less but it's still well within tolerance and I save a ton of weight which makes for a much higher quality quality print. So we we will probably be getting a hammer and I'll be shoehorned into one of the tools of the tool changer for comparison sake. Hopefully we'll see how things go in the near future. Yeah what I don't understand about this designers. They're going to all this trouble to make you know there's all these custom parts it's quite expensive. I like the The driving you know the dual driving from both sides but Yeah but they're not the first guys to come up with that but I can sort of justify it. In terms comes of reducing weight you know keeping the parts as minimal as possible and reducing the overall weight of the extruder but then they make a Boden version of it. I don't I understand. I understand why you'd care about the weight. Convert on tech bomb attack has the same thing with the boat and version of the BMG. So possibly they're seeing themselves competing beating with the bond market. Well the bond tech is. That's just that's a really good extruder Yummy do you. Don't care so much about the weight you're looking at the. You know the dual drive live systems and this is a dual drive system. So we're hoping that is at least as good as the bond tech for their sake. It'd better be better be or they're not gonNA sell many on one thing that they like to push that you you just screw in the thermal tubes for any of their extruders I mean. They're they're hot blocks so they're volcano their V six all their different hop block designs. Pathway designs will fit to this. So it's it's pretty versatile for their for the tool we'll change your though The folks he three D have come up with bolt on parts. So that it'll go onto the tool plate however you know that's a lot of weight you've got the stepper motor for this camera. You've got the small stepper motor for the tool control. You've got all the carriages. That may be too much much. Wait for the tool changed your. But we're GONNA find out we're going to testify ourselves and compare it to a tool. That has a zesty nimble on it which only adds like ninety four grams versus nine hundred something grams quite a bit of a difference and then we have a third extruder. That was announced right before Christmas. From the folks at Micro Swiss these folks make some really Nice nozzles and Philemon Thermal tubes they've come up with a design that's a direct replacement for for the CR ten in the ender three basically replaces the entire X. carriage however again the it's a mid sized stepper that's writing in the X. Axis which can be a problem however on these machines you don't print as quickly the Mendel based where the the bed is in the Y axis which is a mental based usually you don't print more than sixty at Mac sixty millimeters unders per second whereas the machines were thinking of usually around eighty millimeters per seconds. Does it make a difference. Time will tell. We'll find out I I don't know I We may explore one of those. I'm my my gut. Tell me again. The zesty nimble may be the better approach. One thing looking at the picture that they have on their website the path distance from the actual geared feeder down into the tube is fairly long and that could become a problem in the heat sink. Looks kind of small tiny heat sink. They have to get the the stepper motor up over the the horizontal Gantry bar so that's why it has to be that far. I would have positioned at forward and reversed it. Yeah you could you could do that But then you're putting in all this weight that's cantilevered out from the the linear motion Crusades off. Yes it can be done. It's just a matter of you. Know Designing Zayn balancing out the different
"stepper motors" Discussed on WJR 760
"Honky? Or you know, at your way. I mean, it's right from the from the dashboard instrument panel. Yeah. So so in other words, this was after the repair. No before it did it too. I thought maybe they would catch it. But right, not knowing. Well, it comes down to many different things in this case in the old days. We had vacuum actuators that actually controlled vacuum cylinders. Dash pots at actually controlled opening and closing the doors today, which used our little stepper Motors. Little electric Motors at actually open and close different doors. So to make a long story short most likely. Yes, they they corrected. The problem where the one was making the noise and most likely it was a blend or actuator the actuator there will have automatic temperature control will adjust back and forth from hot to cold to maintain that temperature. So what it tells me at this point is that you have a problem with the mode door actuator. Emo d. That most likely stuck in a position, and that's why it's not changing over. So in your truck if you do have dual zone control, you have a total of five actuators you have to for the blend door. You have one for the defrost area, you have one for the mode door, and then you have one for the recirculated feature. So sadly enough that want to to get at is a little bit more difficult than others. But I would say most likely that you need to have the mode door actuator replaced. What are the things where it's not worth put the money into fixing oil. It depends on on where you're at. If you're in a climate where you have to use your defrost her all the time. And you know, it's definitely something that you should you know, you look at it. Because you're in Michigan. You know, how the weather goes. Here's here's my question. Judy man. If you do sell your truck because I don't care if it's rust under nine has quite a value to an ad, and when you go to sell it if somebody notices that that problem exists, it's going to take away the value the truck, probably at least as much as the as you're gonna lose as a repair. It's gonna cost lemme say, right? But so here's the question. If you're not going to sell the truck for another year. Why don't you get it done? And that way you can enjoy the repair and not have to suffer. When you go to sell the vehicle finally. So get fixed. No, no, not not a thousand dollars would be a few hundred. But you know, if I remember correctly to there may be you know, if you had to shop do this. There's a way that you can recalibrate in recenter everything and maybe by chance by doing a reconsideration because you do have electronic temperature controls equities on years different zones. There may be a way where they can take the the computer the processor and have it goes through a relearn procedure before you replace that actuator on cost you about one hundred bucks, but that could fix but on the other issue when they replaced the blend or actuator that procedure should have been included. Yeah. The point is to three hundred bucks, maybe on the outside. I on both the procedures. So it's not that much. I mean, it's relative, but it's not that much, but you're gonna lose more than that in the value. Because if it is the expensive repair that you talked about the thousand dollar one where they have to actually take the evaporator core out and all that that is very expensive in and somebody that's buying that trucks going to assume the words, not the least. It makes us. You mentioned that just filling the gassing his most the items. I have I got a zero turn lawn. More yellow drain the gas. Well, two choices either fill it up full with with an additive or empty it. And the rule of thumb is if it's a plastic tank, you can you can let it go. In other words, empty it. If it's a metal tanker ten tanker, whatever you wanna care to call it, then they suggest fill that out. But I just use the rule of thumb that I fill up everything I put the added event it in. I run it for five or ten minutes to make sure it's gone through the carburetor, and I shut it down a flooded, I flooded with oil you don't have to I choose to do that. And the next season. When I start my lawn mower, it starts right up or snow, blower, whatever. Well, what I do is. I take I take the air filter off. And when it's running I take like WD forty or some other additive motor coat, whatever you wanna do. I actually shove enough oil in their word actually starts misfiring. And then I shut it down. Netflix. Fogging engine. Yeah. I love doing that. It it works. Really? Well, because they just it lubricates the senators have to worry about anything ceased, but for somebody that's not an easy or procedure. They think they can do the additive. Well, here's the issue. You know, most lawn mowers and most people that have snowblower whatever you use a relatively small amount of fuel during the season. So why not just use the fuel stabilizer? All in the reason for that. Is you don't have to worry about running it later because it's already in the system and you'll have better results across. Why not? From steve. Oh. So. Take care of you. Appreciate a good day per sheet. Good advice. All right. Let's go. Now to Harvey Harvey has a two thousand eleven Chevy Cruz Harvey how many miles on your cruise. Harvey. Hello. Yes. One hundred five thousand K welcome back. All right hundred five thousand and what's going on. With your transmission? Well, can't get it out of the park. When you when you say, you can't get it out of park is that we're where's the car parked right now where he can't get it out of park in the driveway. Okay. I can't move to shift her out of part. Right. Okay. So the first question is you're not in. You're not on an incline because if you you park there probably hundreds of times before right? That's correct. Okay. Good. I wanna make sure that we're not missing something simple. So when you put your foot on the brake you start your engines you put your foot on the break. And then you try to put it into reverse drive. And you can't the gearshift selector will not move. Is. It is it so tight that you. I mean, you can't move it. But just a little bit of the play. And that's it. Or does it want to try to move? Okay. Good. Found out how to get out of part by using a screwdriver. That's right in the whole you just put that down there. And then of course, you can use and that works fine. Right. That does. Okay. Okay. There's two things we have to remember about this. The first thing is it's a safety feature. And so it doesn't get outta park of yet is small child there yet to step on the brake to release it. If you're in the vehicle and the engine's running in the keys on and you push the brake pedal, and you pump the pedal. Do you hear a clicking noise that around the Shifter area? That would be the first thing that's the actuator is working. So that's number one. The other thing is you want to have someone in the back of the vehicle, and you want them to look at the stoplights to see if you have stop lights, if you don't have any stoplights that's most likely why you can't get it out of park. Because of the fact that you don't have.
"stepper motors" Discussed on The Skeptics' Guide to the Universe
"I think that that's the religious angle. Right. They're not selling a cure. They're just giving religious sacrament for donation. That's sort of the end run. They're trying to make and that sticks to the wall. It's working. Yeah. It does stick to the wall. And it's it's really sad. And pathetic, you know, you would think at this point after the societies around the world of existed for as long as they have that we would have found a way to legally stop people from drinking poison right to stop the purveyors of the poise and from actually wears to the consumers. Right. That's the point. It's not so much. I want to take away your freedom to drink poison. It's more use should be able to sell this stuff and make claims that it's a miracle cure, and you shouldn't be able to pour it down the throats of children. That's I think the undeniable thing people's individual people wanna do stupid things to themselves. Okay. You could make an argument they have a right to do that. But not sell poison or give it to kids. Yeah. That's right. Jay who's that noisy time? Hey guys last week. I played this sound. What is that? It's a sound you hear it an arcade or something? But it's probably not right. It's totally an eighties. Arcade. Sound definitely sounds like that sounds like it. Right. But that's not. That's not it. Of course. That'd be too. Plo evil eye Ronit and said it sounds to me like I failed pinball launch. So the same page. There you go like going up the side after the plunger hits it and failing to go all the way out of the top rolling back down. Plunger, Greg moat wrote in and said that is definitely a multi axis Cervo gantry as used and things like three D printers. Sounds like it's making a series of arson lines perhaps creating three D model of the SU logo. So Greg that was a very good. Guess I totally hear what you're hearing. You're not correct. But you're you know, you're moving in the right direction. So we have a winner from last week. And this was sent in by listener named Fred Murata. And Fred said, dear j I think I might actually know what this week's noisy as it sounds to me like stepper Motors, which I guess could be used for just about anything on a computerized Goto telescope mount. I haven't Orion serious telescope mount. That sounds very similar to this if I'm right? I'm guessing this is a larger version because it sounds a little bit louder than mine. So that yes, you're correct. So here's what the the person who who sent this in Bob Benedict. Said he said attach is an MP three recording of the sky watcher each eight German Equatorial telescope mount hunting for its home position..
"stepper motors" Discussed on Newsradio 1200 WOAI
"And you can like us on Facebook. We post a lot of great information to our Facebook page into our website. So we definitely encourage you to check those out. But today, we're here to help you with questions that you might have about your vehicle. So give us a call phone lines are open to one zero seven three seven twelve hundred. If you've got a question about maintenance or repair, we are the guys ask for clock on a Saturday afternoon. Or anytime for that matter. That's us. But right now, you've got our undivided attention to one zero seven three seven twelve hundred give us a call. If you have a question about your vehicle, we always loved the questions about maintenance. So don't think that it's a stupid question. If you don't know what you should be doing to your vehicle. You definitely need to know. So if you have a question about what you should be doing with your vehicle as far as maintenance to make sure that it's running great for the length of time that it should give a call to one zero seven three seven twelve hundred if you're working on something, and you're just stuck or maybe somebody's told you something they don't quite think. That's right. Give us a call to one zero seven three seven twelve hundred. We'll do the best that we can to help you out. It's a beautiful day outside today. It's a little cloudy, but the weather's temperature's nice. Yeah. Better than storming better. Yeah. So it's a perfect day to be inside watching March madness if you're a basketball fan too, right? So that's what I've been doing working on your car and watch madness. We're working on your car. Yeah. It would be a great day to be working on your vehicle right now. So if you're working on it, and you're stuck on something give us a call to one zero seven three seven twelve hundred. We're going to go to the phone lines now and talk to Mark online one Mark, thanks for calling under the hood. How can we help you today? Yes. My sister purchased a two thousand eleven. GMC terrain, and and and I felt bad because I I went and look at it. Whether look like a great car, everything was fine. Two. Weeks after she purchased it that the engine started avenue in trouble. And it ended up having like zero oil in it and she had to replace the engine. And now. It doesn't leak oil, and it doesn't smoke but within like a week or two the oil will just be like gone. And this is a new engine or they putting us in. I'm sorry. Okay. Replace it with a used engine. Yes. So I'm wondering if y'all know anything about a GMC terrain as far as them having a problem like that. I can tell you from experience I had the same vehicle in the same thing happened to me. Yeah. Timing chain broke on yours, and it was losing oil to though. Yeah. Before that. So. What caused it? I have no idea. But I had the exact same problem happened to Maya two thousand eleven terrain as well. Wow. That's funny. Mainly Czech like your positive. You know, your your system. Make sure there's believe that when I was a PCV valve in it just make sure that that's new, and that's the first thing to start off with even those not smoking is definitely burning it because it doesn't evaporate. So. Depending on the type of a mileage on that used engine. I mean, if it was high mileage one hundred thousand miles or so on you know, you might wanna start using what it's a BG product called EPR, and he put it in before your will change. And what it does is help loosen up the rings to where if they had a bunch of gunk built up on them. That's will help reseal the pistons to keep it from sucking oil into the combustion chamber. So you do that on a couple of oil changes? And you might see that diminish if not go away. Okay. That's where I would start first. Okay, man. Thanks a lot. I listen to you guys all the time. All right, Mark, thanks for the phone. Call. Yeah. He had something. Like that happens. It always stinks. I can tell you that you're mine. Mine two thousand eleven terrain did the exact same thing. Yeah. You were out of town to every time. We would take it in for an oil change did role at the shop. You know, when I had the guys doing the oil change. They'd always come in and say, look, it's like free courts low in there were no oil leaks or anything like that. We looked at everything tried to find what was causing the problem and never could. And then eventually I was on long road trip. And I guess it got too low then the timing came. Yeah. Title. Jane snapped on it. Where it was related. I don't know. But I got rid of it. After I had to put a used engine in it myself. Even with the engineer was the exact same thing. It was you know, it was losing oil somewhere. Anyway. Phone lines are open to one zero seven three seven twelve hundred. Let's go to war. Hey, online to Horry. Thanks for calling under the hood. How can we help you today? Hi, I'm doing good. How are you? Good. Good questions. I got a two thousand and three Chevy pickup. Four by fours, z seventy one and. My mechanic retired. No nothing about vehicles. And my brother-in-law helped me with my dampers. I wouldn't get any of my heater wouldn't work each. He changed the one underneath the glove box. And I want to get hot air from my two bents that are in front of eastern will driver's side. And then just cold air on the or no. Different player on the passenger side. But now the they never turn off. It's always hot always blowing hot air. And I think they have three dampers, and I don't know we have to replace the other two for it to work or stop. And then my ACL work now so service coming in you need AC. Yeah. For sure the one that controls. The passenger side is actually on top of the box in you have to pull the dash to get to it. Yeah. That's the harder the ones to replace. The the other one that they put a new motor in it the blender actuator, if they put a new one in there, and it's not working there is like a calibration process to go through if that wasn't done that might be part of the reason, and or you might have a broken door inside the box. Okay. The one in the center or the one we put in probably the one you put in. Because I think the one under the glove box. If I'm not mistaken is your your your inside outside air. I don't think that's actually the blend door actuator. There's one that's underneath a dash in the middle. That does I believe that does the driver side the one on the top does the passenger side. And then you have won a by your feet that does your modes mode door actuator. Okay. I think the one that's far over by the glovebox that that's the one that just does the refresh air either inside or outside here. Okay. Got you open. It up. Yeah. Job like that. I mean, if you're gonna do the top one you just do them all while you're there. But yeah, the dash asked to come out to do that top one. Yeah. We he had to take out the day, even do the glovebox one. Then he was looking at the one on top. But you have to cut something and then repainted, and it was just a big old cluster. You know, what I hear you? I say if you need help with that we do a lot of those at the shop. I mean, we probably do three or four of those trucks a month. Do you know what what are more or less? What it costs a my service advisors? Would if you wanna give us a call to shop on Monday. They probably yes. For alex. He probably knows our top head. Number two one. Oh, six nine seven ninety six hundred. Hundred and sorry got just to at one. Your calibrate the gauges on the desk. Do we don't do it at shot. But we have a guy in town that does it. There's really no calibration for it. I mean, if they go out there stepper Motors, you can replace if that's what you're asking. Yeah. Because by rpm, so like Galway and stop and get stuck. Stepper motor. You could bring it to us. We can EMMY, especially if the dashes already out the apple that cluster out any way, we could send it out for you. And get new Motors put in it and they'll test all of them. So if there's one starting to go bad, they just they can replace Ma it's not that expensive. But if you're gonna do the dash work that's the same time. You want to do all that? Because there's no extra labor involved. Okay. And the last question is it gets flashing on my desk that service or by four. Uh-huh. And that that something like Disney fluid or delaration or no the service four by four. There's a wiring harness. It goes on top of the transfer case in there. They rub through. It's pretty common you end up with a wire at grounds out. That's the most common problem with the service four by four system. You also have the Motors that control the transfer case. And all that, you know, sometimes those go bad, but the first thing you need to do with that is start off by having a scanned. They're going to be body control codes that that control that transfer case there's gonna be a code numbers in it. And that's the direction you'll need to go in. And if there's one code I forget the actual it's a see something there. But that code if that pops up, it's usually the wiring harness it rubs through and it's easy repair. Okay. Well, I'll give you guys. Call on Monday. I I really appreciate it. Okay. Sounds great. All right. Hey, thanks for the phone. Call phone lines are open to zero seven three seven twelve hundred. We've got to take a quick break. You can.
"stepper motors" Discussed on Software Engineering Daily
"So I've taken that designed, and I just modified the ever living crap out of it to where it's not even resemble bowl to the original design anymore because you have to fit in all the Motors. I mean that was a design that was built for stepper Motors. But I had to use DC Motors that have a lot of torque, and I also have to fit in the angle encoders everywhere. So it's just trial and error took me, you know, the better part of the year to get something that even worked at all. So I guess just a relentless commitment to try to figure it out. And this is just you working on it. Right. Right. Right. So I started working on it beginning of twenty seventeen I was employed. Loyd through August of that year when I incorporated the company in windfall time with it. Then, you know, probably spent about eight months in my garage working with that got some preorder z- was able to get in office space where I'm at currently. And this is mostly bootstrapped. Correct. You haven't raised any money for it. Right. Yeah. It's just it's mostly been funded by orders and my dad, and I've also put, you know, ten fifteen thousand dollars into the business and that capital is gone towards buying three D printers. But you've got like a wall of three D printers in this. I guess this. What is it like a storefront that you've revamped as a machine job? Yeah. So I've got so two doors down. We've got McAllister's dally the one right next to us is a vape shop, which I fairly certain they sell some sort of a list listed substances out of to the right of us. We've got some sort of a family doctor and a salon. John. I mean, it's just it's just a strip mall and it works, right? And so help paint the picture of this machine shops that you've got an some great videos on YouTube that you've taken of your machine shop, which very clean, by the way, you're very clean tinker. You've got this wall of three D printers. You've got some computers. You've got some some monitors on the wall at that. You've just got these like six foot tall robots that are in there like random robotic arms around there. What else do you need to tinker on robots? Do you need like a some trays full of processors, and and Motors and stuff, and where do you get this stuff? Well, if you have a three D printer that's a big part of what you need. And then on top of that if you can just finding somewhere to buy the Motors the sensors, and you need some sort of board computer for the robot, you need microcontrollers all those you can buy online. And you know, what I did was just designed the parts out on the CAD software and just think about okay, well, I probably need this motor. So I'd I'd go out and buy that motor. And you know, like, I didn't know anything about like computing torque requirements, are you know, there's some coefficient of friction, but I don't know what number to put their. So, you know, it's just a lot of trial and error trying to find a motor that works..
"stepper motors" Discussed on Software Engineering Daily
"Was thinking about some applications that you could do with your robot. It's not customer about the ideas. It's it's gonna be kind of a mass more mass application or for researchers. At least it's a human sized robots about the I don't know what is it five feet tall. Six feet tall. That's about five five and a half, Utah five and a half foot tall beautifully designed robot with a couple robotic arms and a four wheeled platform on that rolls around and you could do things like maybe make a robot Butler out of it. You could have a robot that drives around your your house and says, you know, danger or something or like chose you security camera footage or something. What are what are some potential applications that you think people could tinker around with this machine learning researchers? Yeah, there's a spectrum of applications where on the the low end of that spectrum you have. The kinds of applicastions where you don't need any new technology to be developed. You know, you don't have to do too much heavy lifting that would be things like, you know, just building a web interface for it. So you can log in to your robot and drive around in and checking your house or your office or whatever to like, the high end where how do we train the robot to be able to cook or clean set the table? Those kinds of things are going to be really really sophisticated applications in I don't have any experience building that kind of stuff. But I look forward to trying to build those kinds of applications. I mean, I I don't know what the killer app for personal robotics is gonna be. But you know, it might be something like cooking, you dinner, doing your laundry, you know, setting the table making your bad. You know, maybe someday somebody's able to crack the code with that and that ends up being kind of the vizier calc of personal robotics in. I think that's how the future. Unfolds here. So you've been hacking on these you've gotten a robot fully built I want to know about the process for doing that. Because you got the you got the cost down to a pretty good place. I was looking at the site today was something like sixty four hundred bucks or six thousand bucks. How many of the components that you built this robot out of were you able to take off the shelf so pretty much everything plastic on the robot is custom designed and manufactured, including a lot of the metal components like the hubs and motor mounts and stuff like that. In terms of off the shelf components. I mean things like Motors the sensors for angle detecting, the microcontrollers the camera in the head the computer that we use on the robot. It's an Invidia Jetson those are off the shelf parts. But yeah, the terror one there is a ton of custom components, and that's par. Of the reason why we've had to keep raising the prices for because it just takes a very very long time to to manufacturer one of these. You don't have a background in manufacturing. How did you learn to build a robot? Did you read textbooks or stack overflow? What was your process mostly playing around with three D modeling software like like the CAD software like Autodesk inventor infusion three sixty in just kind of trying to come up with ideas. I mean, the easy part is like building the base designing that because that's just a couple of wheels. You know around a frame, you know, even up to the head and the neck like you can pretty easily wrap your head around. How things like that would work the really hard part of any good robot. That's along this kind of category is the arm design, and that's what takes so long to try to build. So I started with the T R ones. Arms is started with like trying to work with stepper Motors. And I spent a long time trying to get that to work, but stepper Motors don't have enough power for the the size of the arm. You know, so it was just a ton of trial and error. I ended up trying to take in open source robot arm design. I just like, okay. If that works, I'll just throw it on the the robot..
"stepper motors" Discussed on This Is Only A Test
"Hey, guys been testing. I wanna recommend the tested favorite things videos. There's so many of them this year from all the contributors. They're really wonderful. You get a wide came it there. Just incredible bevy of products. And then Kate Savak are has an atom have the build of the blade runner blimp on the site now, which was an awesome watch and seeing Kate work on that for the better part of almost a year. Feels like and seeing it come to fruition. It's is one of the more amazing tested builds I've ever seen. Yeah. And those things videos, really hurt my wallet. Because I bought a bunch of stuff. I bought the book. You're commended all over the map. Yes. Beautiful. I bought some files which from Islas. Yeah. Oculus go. Yeah. I didn't buy. I have the Preussen by check ovation. It's a little expensive. It was nice so one hundred bucks hundred twenty more for an artificial. Yeah. There's like one hundred twenty hundred thirty toward. Canceling. I can I can I give you a follow up. Sure. So I actually have been testing something myself over the Christmas break, I thought it would be the perfect time to install the Prusova 'em you to point out multi-material. That's right now, I had the MU one that I installed on my old. And I recommended this year the MK three which I think is easily by one of the best pieces of tech. I've ever owned. I built it. I bought it as a kid. I assembled. It is a machine it is an absolute just I can count on it to print everything that I send to it. I love it. It's a great three D printer. The m you to is supposed to be great as well. Because it's the same company. It is a disaster. Oh, no. It is an absolute disaster. The end the forum is filled with people who are who just can't even get the print once acceptable print, and is what's what's breaking down the Phil. It's a it's a cool new design in theory. It's it's cool. It sends the filament down to the existing extrovert. And then it prints as good as the MK three would or what if using them to point five the old one was a Boden system where the extremists way up here that the stepper Motors are way up on the frame. And so it wasn't quite as good a print that one. So this one it sends it down and grabs it in print like normally would. But because the film it has to retract all the way back up to the frame every time. Now, it gets stuck stuck in several different places. And there's a thousand settings that you can tweak, and there's there are a number of people who have gotten at working as far as I can tell they're all using the three. I'm actually I action sold on my two point five it's supposed to be one hundred compatible with and I'm telling you if you go to the forums. It's it's just it's chaos in there because there's so many people who just can't get this thing working certainly not with with stock right out of the box the couple of people who say they have. But I'm telling you most almost everybody has been spending weeks trying to get this thing working, and it's not not a product. I would recommend yet. But I know provable figure this out is that the harbor problem or suffer problem? I think that that that there's going to have to be revisions to the hardware. Maybe hopefully, just three parts that we can make ourselves. Right. Right. Right. But possibly some more things. I mean, people have installed all kinds of Mods including things involving springs replacing part of the x of the hot end with a different with the heat break. There's a lot of different things. People are trying. I I have tried new Boden. Not putting to PTSD that the tubes. At the film, it travels through with wider inner diameters. There's a lot of things people are trying and it's so frustrating not to build the thing to print reliably..
"stepper motors" Discussed on 3D Printing Today
"But so I tried upgrading the the Marlin firmware and the new version of Marlin I can't seem to get it to run on that bore. Which is two bags. It has all these like features on it that would have made the system much easier. But I tried for a couple of days trying to get it compiled, and and uploaded to to the old rumble board, and there's there's something going on there that it's it's like when I finally actually get it. Uploaded just comes up with a blank screen, so something's not working with it. And I don't wanna spend all my time, you know, trying to Jack around with with Marlin to make it work. So I just went back to using the old one. And since the the stepper Motors have quick disconnects on a my urologist unplugged, the regular stepper and plug in the pace textures. So you have to use your your you have to treat it like the single extruder then rice extruder zero. Yeah. Zero one or whatever. Yeah. Yeah. Basically, which is that that's fine. That I should just keeps. It keeps. It simple. You know, makes it easier to to, you know, doing the transition replacing the extruder is not difficult because yes, you have to physically, you know. I don't have cartridges where you snap in the. Extra you want? It's the nothing's that fancy. And so I've got this this set up. Now, the other issue is that I didn't wanna have to reflash the firmware every time. I was switching extruders, right? Yeah. The only thing that I really needed to change in extruder is the number of steps per millimeter. Right. That's the only thing that that changes dramatically between the two of them mostly because the the paste extruder, you're just not sending any heating instructions to it. So you don't care about the calibration of the heating because you're not heating anything. So that's all just turned off. And you don't care what those settings are in in the firmware in the g code is not turning on any of the heaters. So the question is how can I how can I use the same firmware for you know, the PLA the regular hot end extruder versus the paster. So I started looking through a simplify three D And seeing how how I'm going to calibrate this anyway and ethic while simplify threes not designed to count, you know, for pace Dexter. But you think about it three D printing is volume metric, sure, right? And it doesn't matter wear that volumes coming from the math is all the same. Right. Yeah. So I measured the inside of the barrel of my syringe. And I made that my filament diameter makes sense. And then I measured the the inside diameter of the of the little lure lock nozzle that I'm using on that. And I made that my nozzle diameter. Well, what you don't have though is you don't have something within your firmware or your software which will take into account the time between the pressure build up the pressure release. Right. Your paste, the added you deal with that. Well, that's basically retraction. And and setting setting retraction time and setting Ivanhoe twenty five millimeter retraction. So you you've got it set. So that it creates pressure, and then it retracts, right? Well, at the at the end of the print, it's not it's it's not perfect, and it will probably never be one hundred percent optimal with the with the existing software. Just because it's not right there. There's so many things that if you really want to develop a paste extruder to the highest level there's so many things that you'd have to do differently. Let like like what you're talking about. But basically just hacking it into into simplify three D was not that not that difficult because the other thing I had to do was have a conversion between the number of steps per millimeter of my regular hot. And in the number of steps from ill major of my of my pay sticks Tertre, and I just factored that into the film it diameter. So instead of being a thirty millimeter filament, it's now like a twelve millimeter filament or some. Elm, and that and that basically takes that into account. I'm leaving my extrusion compensation at one point..
"stepper motors" Discussed on KLBJ 590AM
"I mean, that's the kind of progress that we're likely to see over the next twenty years or so why is small and technology better. Well, I mean things just get smaller and more precise, and you can pack more and more into the same size. That's part of Moore's law, basically, which has always been basically esteem where you can pack more and more onto onto a chip. Right. And that's one of the things that's really driven miniaturization. But I mean, it's really gotten to the point now where you know, even if that eventually kinda Peters out, and many people think it will because we're running up against some physical limits in terms of the traditional approach to Moore's law that other approaches are gonna marry, you know, people will start hooking all these smaller kits together into massive networks and things like that in order to build an entirely new architectures. So this is something that's gonna stop. It's just gonna keep getting more and more dramatic. Have you seen that movie X at machen is it that the name of that movie? Right. Yeah. Yeah. I've seen it. And you know, there are lots and lots of science fiction movies that deal with many of the issues. I I don't know that any of them really get it. Right. A lot of them are still far in the future in terms of what they portrayed, but we're beginning to see in the real world, some of these issues come up, and this is this is you know, how it's gonna play out eventually over the next twenty thirty forty years. We're eventually going to see technologies like that. I think I think so too. Let's get one more call before the break, Westland, Oregon. Hey, Tom, go ahead. Welcome to the show. Hi, George love your show. Thank you. If you took a smart phone with its camera, and it's and everything it's got a USB port on it. You could plug that into something called in our Dino. And Dr to stepper Motors choosing the sixteen bit output of the we Ueno so virtually you could. Drive a robot on the other side of the world using a phone the second I've got a question for your for your guest. Where can I find a an assembly language programmer for my robotics? They don't teach it in school and pretty much. Everybody is Microsoft, Microsoft driven and a Microsoft program. Is there a crash master? I can't have my robot crash because of the does there's nobody there to reset it which goes to the definition of what the difference between automation and robotics is a toaster an electric alarm clock. You looked for kilom- clock you set and it runs forever. Automatically by itself without a person. The toaster requires a person to push the toast down to start the nets. Right. Hold on, Tom. We're going.
"stepper motors" Discussed on KTRH
"He's holding a little refrigerator almost that's how it started. And one way to think about all this is to say that when it comes to robotics and virtual reality, and these technologies that are just taking off their like that that phone in that movie that Michael Douglas's, the stage, they're at and you can sort of see where it's going by looking at you know, today's smartphones. I mean, that's the kind of progress that we're likely to see over the next twenty years or so why is small and technology better. Well, I mean, it it just get smaller and more precise than you can pack more and more into the same size. I mean, that's part of Moore's law, basically, which has always been basically esteem where you can pack more and more onto onto a chip. Right. And that's one of the things that's really driven miniaturization. But I mean, it's really gotten to the point now where you know, even if that eventually kinda Peters out, and many people think it will because we're running up against some physical limits in terms of the traditional approach toward law. That other approaches are gonna marry you know, people will start cooking all these smaller chips together into massive networks and things like that in order to build an entirely new architecture. So this isn't something that's gonna stop. It's just gonna keep getting more and more dramatic. Have you seen that movie X at machen is it that the name of that movie, right? Right. Yeah. Yeah. I've seen it. And you know, there are lots and lots of science fiction movies that deal with many the issues. I I don't know any of them really get it. Right. A lot of them are still far in the future in terms of what they portray, but we're beginning to see in the real world, some of these issues come up, and this is this is you know, how it's gonna play out eventually over the next twenty thirty forty years. We're eventually going to see technologies like that. I think I think so too. Let's get one more call before the break, Westland, Oregon. Hey, Tom, go ahead. Welcome to the show. Hi, George love your show. Thank you. If you took a smart phone with its camera, and it's and everything. It's got a USB port on it. You could plug that into something called in our Dwayne oh and drive to stepper Motors using the sixteen bit output of the we Ueno so virtually you could. Drive a robot on the other side of the world using a phone the second I've got a question for your for your guest. Where can I find a an assembly language programmer for my robotics? They don't teach you in school and pretty much. Everybody is Microsoft, Microsoft driven in a Microsoft program. Is there a crash master? I can't have my robot crash because if it does there's nobody there to reset it which goes to the definition of what the difference between automation and robotics is a toaster and an electric alarm clock. The electric alarm clock you set and it runs forever. Automatically.
"stepper motors" Discussed on Programming Throwdown
"Whole experience, they kind of document their whole journey with Iraq natives. I thought that was pretty cool. I feel like there's been a sequence of these kinds of things. I don't remember all the names because I don't really mobile programming but react one seems to have stuck around for a while. I don't know if it start around quote unquote long, but it seems like it's been, yeah, there's a for longer than average Tivoli. There's examiner in was a big thing, and there was phone gap where it was literally remember that one. Yeah. And a lot of these kind of died out. Seems like react native for whatever reason has just stuck. So. I found my first spark fun order. Oh, nice. What time? What year do you wanna guess guess. How many years ago guests that you needed it for some college project. And so we can't just go. Right, you out of it. Okay. Let me just loosely guess. I'm gonna guess around. Like twelve years ago. House guests. Nice. Go. Yeah, it was not. I really. Okay actually can see what I ordered and I know what I did with. Okay. All right. So it was actually nannies. I'm not gonna age myself building using Dino to build a like a little thing that moved around on stepper Motors. Nice. Actually, speaking of that chess robot arm making good progress on posting on Facebook. If anyone's is following me, they're like, but not as the as the podcast you have to follow me because I don't want to. I want to keep the podcast pretty high signal to noise. So the robot arm is is pretty good. I've will stepper motor looking at it right now and it moves. I don't know. This probably isn't a good design, but you know it works like VCE. I'll have a platform that goes up and down, or I guess left and right, and then that figures out which call them to go to arm should pick from and in the arm only. Has to think about one axis, then. Yeah. So it seems it's not as fast, I think, as having an arm that could meet just needs to wear. Yeah, for me is the huge accomplishment because I actually, I burnt a word or melted Donna motherboard melted a bread board because no one told me that you're supposed to put seven apps or bread board and. How did you manage to even have something they could do seven amps. I have the upper, maybe it's not seven by the stepper motor, and I have a digital Cervo and a digital service for the shoulder of the robot. So so I got one that's pretty powerful. And basically, yeah, I have the platform moving and I tried to move to arm at the same time. It draws a lot like I don't know if it's exactly seven apps. It's a lot of apps. It's not. It's definitely you can run seven through the PCB wiring. Oh, really? Okay. That's not seven. It's it's. The bread board can handle half an app and I melted the bread board. So it's it's more than that. So you are somewhere over. That's my lower and upper bound. Okay, cool. Don't don't don't burn your house down trauma best. It's proving to be pretty difficult not to burn my house down also. Yeah, you probably want to look at like motor drivers or adding a transistor so that it drives directly from the power supply instead of running through the Duino if that's got to be okay, you already do that..
"stepper motors" Discussed on 3D Printing Today
"That comes from a private company that's their own product just this past year so the folks that tea maker that make the mod t three d printer fellow brought one last weekend to one eighty studios where i was doing a a meet up he brought one i got to you know actually look at it and move it and play with it and and look at you know get my hands on it and take things apart they have to replace the firmware on it because the current firm where will only run through an internet interface to the company and that company shut down to phone to while which means all that harbors no good any well it's hope somebody comes up the path to actually put new for more on it 'cause it gets worse a member of the cube from three d systems of fairly company that has not shut down here's a company that could have supported their product had decided by basically just threw it all away so if you bought a cube or q pro you're out a lot a couple thousand bucks yeah they're basically kaput sure so you keep it in mind even the better ones you're there's always that risk always that risk well the the other option which is kind of sucks compared to just having a printer that works plug and play but i mean you're stepper motor still work your stepper motor drivers still work and so it's really just a matter of putting a new motherboard on yeah ripping it to pieces and taking the parts and building another printer well but but you've got the printer downstream of the of the stepper motors right so you just need to put new stepper motors a new you know you know put a new cardio and dino or something there that's in capable of doing marlin you're not hard year capable of doing building your own eat tune it yourself yeah but but the the mechanics of the printer are are much more complex yes that's true they're not more complex but the more difficult to get done right the electrons are i mean you've got four wires that go into each de promoter right after that it's all just you know firmware settings and calibrations then you got you gotta hook up your heaters and you gotta hook up your your thermos tres thermo couples to control your heaters but other than that there's really that's all the hookup that needs to go on you know it's really not that complicated i did this on a on a cnc vertical mill that there is a guy that was just giving them away because they were so old i mean this is like a probably nineteen eighties fullsize wells index vertical mill that the controller for it that had the step the step motor controllers and all the power by everything society of fullsized refrigerator and i didn't take that i took the vertical miller said hey great i'll take that and i built all mile controllers for and got my own soffer for it's great to do because you've got that wherewithal to do it but there are many many many more people out there buying three d printers to sure that don't they buy it like it's a right like a toy a toy or a tool and they're not the are they're not going to look at it as well i just put a completely different motherboard in it they're going to go how do i do that i don't know how to do that but it's but it's it's not that hard to do that compared to other things i mean there's other things that are a lot more complicated but let me put this in perspective if i mean i have the wherewithal i can and you wouldn't bother to i wouldn't bother to if if this machine i've got right next to me it's motherboard blue clone are one i probably would said bye bye actually this one give it to but say the a good one out there the maker but gen five byebye sure i don't use it anyway yeah yeah no i mean there are some that you wouldn't i wouldn't bother with obviously but it's you know you're looking at you know under a hundred bucks probably to into an all open source to get the system back up and running and a little bit you know tweaking to get the calibrations the settings right but the.
"stepper motors" Discussed on 3D Printing Today
"Quickly the stepper motor that's feeding the filament into the extruder stops and starts drop step it drops stop it just has to drop a few steps if you hear a every now and then or dunrite consistently from if it's duct up you gotta clog but if you're printing regularly and it looks like it's printing fine and every now and then you hear misstep right you got a problem the pallet will not work well with that and that's the thing to remember is that you may be producing acceptable three d prints in one color with lots of stepper stutter and not even know that it's happening the other the other side of that point is if you were to take your fingers and during load while you're loading the filaments extruded through you hold the filament wow it's entering your extruder hold that filament really tight if that filaments stops and the printer doesn't do stepper stutter then it's slipping and you probably don't want that you wanna be able to hold that film it really tight inhabit pull through your fingers in told it with both hands right and then you should be able to hear the stepper starter or you should feel tearing through the felon that you should be able to make this upper right and of course if you do tear through the film at then immediately clean out the right the hobday gear in the little teeth that are doing that so you don't really if you can't go on either side of that then you probably have issues that will show up when you try to use the palette you you have to have an exceptionally accurate feeding capability on your three d printer and in our opinion i believe that the best you could buy today is the bonn tek hands down easily the best you got because it's got the hob toothed gears on both sides of the film both sides are being drift with even pressure not one pushing against the other but it's nice even pressure as well as in many cases in the bond tech design a better stepper motor set up a better way of doing the stopper when in my race three d the pancake motors with the different voltages a much finer quality than i was getting with the size stepper motors at the higher voltage so it's it's it's definitely a best the best way to go there are others out there that we don't have that people do talk about but in my opinion really it's bond tek i i'd only use bon bon tek extruder feeders on three of my three printers okay so the rep to that iranian started using i finally got the bond tek on it and i thought okay nell it's got that worked out and i started doing it with the pallet plus we finally got pal plus in and i don't wanna talk about the whackamole shoes i have with the pal plus yet say that for another segment there were plenty of issues and they all worked out and it is finally working for me mona focus just on the printer stuff and so with the rep to that i was mentioning earlier all of a sudden i'm printing and i'm getting air prints it's clogging what's gone on here and so i you know stop the printer and pull the material out and i can't figure it out so i look at the there's this thing called the transition tower so as you go from one material to the other like one color to another caller it smears the first one until it switches till he's setting studer right and the transition towers are essential you gotta have them you can tune them and yes they do use a lot of plastic so you don't just do multi materials without thinking about that and we'll have segments about how to minimize the effect of the transition tower but i'm looking at my transition towers and that's where the plug the somehow the clogs were currying and sure enough on the very edges of my transition towers i had a little blobs of plastic what's going on here well i had set chroma which is the software that sets up all the multi material stuff for the pallet to to only do it's pauses the pauses of the points in time where the power palette has to time or look evaluate the amount of filament versus the g code that's passed by know how the.
"stepper motors" Discussed on Programming Throwdown
"Servers are self aware so you could tell your degree twenty three and i'll just go there right it's a closed loop closed loop yeah when it starts it knows what degree is that everything well it's more than just closed loop right stepper motor i believe is also closed now no we'll the stepper motor you give it a difference you say like i wanted to take two steps and then it will make sure that it takes us to stone this is getting really off into antics stuff is not important but actually studying motor if if you're holding the motor or it's like overtalked and you tell it to move and it can't it won't actually know if it succeeded or failed which is why if you're if you ever have your three d printer hit the print and skip where like miss aligns that's what happens it lost steps it hit something and couldn't move but it didn't know it couldn't move this serve desert close up it will continue to fight you and if you hold it will just keep fighting and gets to the position told it to interesting okay so but promoter takes i don't know why this stuff from of it or take so many more pins is probably just whatever different technologies the super motor takes takes two pens and serve only takes one and so there's there's a shield you can buy which gives you just a lot more pens c control you know ate supper motors or something like that i haven't had a need to do that since i'm only using servoz yes shield for everything so you can imagine so printed circuit board a pcb is like a piece of fiberglass with metal traces in the circuitry sitting on it and that's what the are dino board itself is but then you basically get another board that plugs into the are aboard that is shaped often similar to the arjuna board and you could have a display on it you could have like jason's saying a whole bunch of connections for servers and stuff you could have it like be able to control lots and lots of led's there's all sorts of crazy ones there's ones with batteries on them so you can actually run the dino without being plugged in cool yeah so you can find all sorts of shields and these shields are just like a common shape and set of libraries is normally what's expected allow you to plug in to the are dino and add functionality had hardware that it didn't start out with yep makes sense so i think we've talked about we've mentioned gp we haven't said what it is gpo just general purpose input output and so what that means is the you know you can plug something like a cerveau into one of these pins and send signals serve you could also plug in something like a joystick that's that's sending data into the arguing and the same pin can do either or yes so sometimes a pin could be an input and sometimes a pin could be an output and it can switch back and forth is programmable right so yes so as far as things you plug into the artemio so there's a ton of stuff there's there's said motors lcd's panels there's things that sense water so you have a little thing which is like it looks like the long circuit board but what it actually doing is telling you the water level so it's just i guess not quite sure from physics standpoint how it works but you would stick this and it it will just tell you like how much of this board is is full of water so where the water line is all sorts of crazy stuff you know cameras there's like depth sensors things like that everyone wants to make a robot is that right like i feel that's the yeah he ever went at some point once some type of motor or some set of motors and then some type of input it's like a camera or or some kind of a stop sensor or something like that and all of that is totally doable with our we know and the libraries make it they super super easy dis so there's like a depth sensor that's compatible with our do we know which.
"stepper motors" Discussed on Programming Throwdown
"To get a laser cutter because some stuff you will release toxic gases but there are laser safe materials anyways okay long story short the software that you're supposed to use to run this is like ranges from will is there any way this could possibly work to i'm definitely getting virus from installing this and so i was really not wanting to do that you have to like you know sort of plug in a usb hardware dogle to run what some people sort of say is like a counterfeit version of some software or pirated version of some software and then there's a plug in and it's like ooh i really don't wanna messing with this why why is this so hard like you basically have to just point the laser using couple stepper motors and turn it on correct but these these are made for people who use some specific software package too i think it's actually said that this is for making sort of stamps based on your name in chinese but they've just found out there generally kind of cool and useful for hobbyists and they're really cheap to make and so they've been sort of re tasked and this is the whatever company that sells this is their solution and it's just not very good god so instead one option is you could replace the controller board that controls the stepper motors to just take g code like three d printer would be and there's lots of people who do that and i've considered doing that because you actually get more control over it sure but you could also do is somebody basically sniff to the protocol and figured out what this definitely virusladen software was doing with even they basically figured out what protocol it was doing and they wrote a very simple you i where my workflows basically jason kind.
"stepper motors" Discussed on Cory Doctorow's craphound.com Â» Podcast
"The bed started to jerk and move with a characteristic stepper motor dance of a three d printer the beam of light sizzled on the bed like the tip of a soldering iron sending up a wisp of smoke like a shimer in the sun's glare there was a sweet smell from it and i instinctively turned up wind of not wanting to be sucking down whatever aromatic volatile dhs were boiling off the print medium that is way way cool i said does it work he smiled oh yeah i works this is the part i'm interested in he type some more commands in the entire thing lifted up on recess wheels an inched forward with the slow grace of a tortoise it walks yeah the ideas you leave it in the desert and come back and a couple of months in its converted the sand that blows over its in hopper into prefab panels you can snap together to make a shelter uh i said what about san on a solar panel i was thinking about the mars rovers which had a tendency to go off line when too much martian dust blew over there photovoltaics working on that i can make the lens and photovoltaic turn sideways and shake themselves he pointed a couple of little motors but that's a lot of moving parts wanted to run unattended for months at a time how i said this wouldn't happen to be a burning man thing what it he smiled ruefully that obvious honestly it was half of minus where burners and they all had a bit of his look of delightful otherworldly weirdness just a lucky guess i said because no one wants to be reminded that they're of a certain type specially if that type is nonconformist he straightened up and extended his hand he was missing the tip of his index finger and the rest of his fingernails were black with greece i shook and his grip was warm firm and dry and rough with kallas.