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Build a Sumo Robot From Hell

Monday, November 24th, 2008 – running time 28:40
Ready to build your first robot? A sumo robot is a great place to start, and we've got the complete how to from David Calkins!

Giant flailing heavyweight combot robots might get the most air time, but they're a horrible place to start out in robotics. Super expensive, super complicated. And they need a human with a remote control to fight... so are they really robots?

Sumo Robots are a much better place to start... and the competition is still vicious!

These small but powerful wheeled robots operate autonomously, and will challenge both your engineering and programming skills... tho they require no degree or experience. Getting into robotics isn't, believe it or not, rocket science... it does require a small investment in parts and a lot in time.

Join our very own David Calkins, who's an internationally known robotics authority when he's not hosting Systm, walks you thru building a sumo robot, large and small, that are -perfect- for competing in events like RoboGames.

Highlights
united states ( 0:10, 15:26, 0:10, 15:26 ) State Department ( 26:41, 26:41 ) robot ( 0:22, 0:24, 1:14, 1:17, 1:21, 1:24, 2:18, 2:21, 2:28, 2:30, 2:49, 3:02, 3:14, 4:02, 4:49, 4:56, 5:02, 5:42, 6:10, 6:22, 7:48, 7:50, 8:07, 8:19, 11:58, 12:01, 14:27, 15:02, 15:11, 15:13, 15:18, 16:07, 16:51, 19:25, 21:00, 22:33, 24:01, 25:06, 25:31, 25:36, 25:46, 26:04, 27:04, 27:06, 27:11, 27:22, 27:44, 27:56, 0:22, 0:24, 1:14, 1:17, 1:21, 1:24, 2:18, 2:21, 2:28, 2:30, 2:49, 3:02, 3:14, 4:02, 4:49, 4:56, 5:02, 5:42, 6:10, 6:22, 7:48, 7:50, 8:07, 8:19, 11:58, 12:01, 14:27, 15:02, 15:11, 15:13, 15:18, 16:07, 16:51, 19:25, 21:00, 22:33, 24:01, 25:06, 25:31, 25:36, 25:46, 26:04, 27:04, 27:06, 27:11, 27:22, 27:44, 27:56 ) artificial intelligence ( 0:17, 0:17 ) united states ( 0:10, 15:26, 0:10, 15:26 ) State Department ( 26:41, 26:41 ) robot ( 0:22, 0:24, 1:14, 1:17, 1:21, 1:24, 2:18, 2:21, 2:28, 2:30, 2:49, 3:02, 3:14, 4:02, 4:49, 4:56, 5:02, 5:42, 6:10, 6:22, 7:48, 7:50, 8:07, 8:19, 11:58, 12:01, 14:27, 15:02, 15:11, 15:13, 15:18, 16:07, 16:51, 19:25, 21:00, 22:33, 24:01, 25:06, 25:31, 25:36, 25:46, 26:04, 27:04, 27:06, 27:11, 27:22, 27:44, 27:56, 0:22, 0:24, 1:14, 1:17, 1:21, 1:24, 2:18, 2:21, 2:28, 2:30, 2:49, 3:02, 3:14, 4:02, 4:49, 4:56, 5:02, 5:42, 6:10, 6:22, 7:48, 7:50, 8:07, 8:19, 11:58, 12:01, 14:27, 15:02, 15:11, 15:13, 15:18, 16:07, 16:51, 19:25, 21:00, 22:33, 24:01, 25:06, 25:31, 25:36, 25:46, 26:04, 27:04, 27:06, 27:11, 27:22, 27:44, 27:56 ) artificial intelligence ( 0:17, 0:17 )

Automatically Generated Transcript(may not be 100% accurate) ( more )

" War."

" This episode is brought to you ride it certainly simple virgin America visa signature art. GoDaddy got and the united states air force. So everybody knows that I like robots would you like to build a good starter one with some basic artificial intelligence that it actually -- act to its environment. But good expendable robot -- the hundreds of different things is nice little robot. -- obstacles all of things and a lot more we'll show you how to make it simple but it basically about platform on today's. System. That's good so. --"

" Dave Dave Obama camp filling in for -- not sure I can quite Phelan -- shoes here 160. Yes now what exactly are we doing today what it is this thing this. Is obviously -- everybody likes robots. Not everybody but most of you watching this electability good robot so you might think where to start well PC robot is a great place to start the with the sumo by what is AC robot a similar but. Is a basic robot concept. That allows you to compete against other. Sumo robots but instead of having two big fat guys you know pushing each other gathering. What you have is too skinny little robots pushing each other rhetoric they're generally divided by weight classes this is a 500 -- about which obviously means it was -- program. Just like combat robots which have -- cover about elected 220 don't -- some things like that same kind of thing. Is it here what we have is a 500 gram Rabat which is also confined by sites it has the ten centimeters like ten centimeters. There's also 25 grams which are one inch by 100 grams which is through and I think iTunes and and three kilograms or six point six pounds for those people. Can't symmetric. And those are twenty centimeters by twenty centimeters or about eight inches square. Now what's the advantage of doing -- to all but over save your traditional combat robot to great advantage let's. Have a similar robot is that. They have sensors and their programs so basically. Instead of having -- remote controlled robot having programmed robot. Which basically you program it and then you can decide what it does where it goes and things like that based on its input. So these civil robots have sixteen input output. And what you do is you learn how to build it with sensors know these sensors. Do two things one they keep them in the arena so that the robot knows not to go out of the arena is just like a regular sumo. The first person out loses right in no -- that you trip and fall -- to shoelaces and thought to be reading you lose or way to the other big packet -- so. If -- robot goes out of the arena by itself it loses if he gets pushed out of -- of it so. It loses -- dimensions are right now got sensors this case are they like and for render outlook and sensors aren't so this."

" Robot uses infrared sensors here it's basically what you have we have to. Now ladies that emit infrared light you can't see them we humans can't see them. But they issued on infrared light which is that fox is back in the -- little sisters here detect that infrared light. They also have what are called CDS cells on the bottom. Any CDS cells detect contrast -- the same. Once there others sort of light sensors from its purposes so that the same ones that you might have in your garden if you have like the little. Solar powered rechargeable lights that turn on when the sun goes down in the turn off when the sun comes back up same sorts of things. So what these two sensors do is the sumo arena is black with the white. Outlined -- sensors basically if the robot's going out of the arena the sense that white line end of the program that you've written says who I should currently anyway. What these two sensors view is they did find the other robots basically have just randomly moving around the arena you fight the other about. Now what's really cool about this is that you can automatically reprogram it to do lot of different things so for instance. As it is now it's perfect -- level -- without modifying the hardware at all you can reprogram us to be alive power for it -- have a white line here. These two sensors that detect that white line if they go off the white line on the to turn back to the white line. You could also use this as an obstacle coalition cut kind of thing we're basically it always chases into an obstacle in -- into it."

" Or a collision of this robot we're basically just wanders around the room make sure that it never comes into walls. It's a very good starter robot -- Cool so why. It why -- sumo by a similar robot is a great first very much if you're looking to build your first -- This is pretty much the perfect -- about why number what they're autonomous. You learn how to both to work around the robots programmed it to move as well as to you know learn the basics programming. Number two. They're multipurpose. Similar but is designed to meet all requirements of the -- competition but it can be easily re purpose for a lot of other things such as line following such says obstacle avoidance thing. Number three to learn about sensors and -- so you learn all of those those things about how sensors were things like that. And as far as as far as building a robot this is how I got -- robots this is -- I I was just it. Programmer for a dot com for about ten years ago. And -- wanted to get an aeronautics and this is exactly how I got her so basically if you're looking to end up with a garage filled with about 200 different robots. And you really really really want to look alienate your wife your friends and and lock yourself and drive never ever seen again. But similar ultimately it's so it's essentially the Gateway device that leads you into the robot had it it's the Gateway -- next. Three point great places to go our remote -- subnet trust robotics dot com and parallel -- dot com. All three of these places have great mini sumo robot kits available but they all maintain the same basic philosophy of it's built for many similar competitions touched so what are we begin in this giant journey sumo robotics. Let's. Start buying building one -- of -- have gotten a case here Andrea Andrea. Show people how quick and dirty used the symbol like this."

" It's time to think one of responses at today's show godaddy.com. -- going to make an impact on mine godaddy.com. Has what you need. Starting at less than five bucks a month web hosting from godaddy.com includes. 99 point 9% up time point 47 support and free access to GoDaddy hosting connection. These places to quickly install over 53 applications. But we're track -- look. Drupal but -- commerce and more godaddy.com makes it easy to customize your own virtual dedicated server she's -- three popular clients. We're selector a Linux or windows server with all the plan options he needs. But senate candidate -- five that's as blessed by when you take out David additional ten bucks off any forty dollar or -- more. Some restrictions apply it to -- for details get your piece of the Internet and godaddy.com. Support us. But supporting the seats. So."

" The first thing when you do is find out how to make robots move now if you remember back in episode forty. When I showed how to make. Meaning combat robot which was -- in many as thirty comment robot. We learned a little bit about how -- motors move will serve those are really cool because service have. Built in motors gear boxes and speed controllers so you have to buy a separate speak true. In the 500 -- class generally what you're doing is you're building a robot. Which has all those things built in together because they use serve homeowners are you really always want to use a servant water. And me 500 -- I'm something much more complicated like -- three kilogram sumo robot you're gonna want to use separate motors here boxes and speak for hours. -- And we're gonna -- our brain. Is your specific location on the bread board that you need to so in this case and again you know we're not gonna -- everything because you guys can read directions as well as as anybody. So that directions basically show you exactly how to put this. The brain on so in this case we we put the brain. And there is exactly as many pins as there are rose on the -- board so it's really easy to put it on right and it's really hard to put it on -- Certainly that. And then. I'll put him there. And most kids will come with one of two things. In the case of something that uses what's called -- spread border protecting -- you typically get. These little -- insulated pins so these -- called jumps and and you can put these jumps around things that you can pull them off quite easily. And reconfigure but this is especially important if you're building something like be -- but. With the intent of reusing it reprogramming doing all sorts of other things so for those of you wondering. Why you would use a prototype and board like this rather than any permanent board. It's because you're going to lots of different things with this republic not having paid anything extra to do so let's -- about. It's even get it to move. And so I've just added a few quick jumpers. Two. Robust -- and connected servants. And now telling -- a program we can."

" We go forward backward. So -- only goes one direction right now written note to test another facility going to wonder."

" You know now. --"

" Not the most exciting with basically if you -- so let me understand. If you look at the actual program and you can see. That the code is just it's really five lines of code gets it is being encircled when you have been in a loop. Yes that's basically always doing man. Now."

" Let's do something more advanced and that's actually start to get it to talk to itself. -- in interact -- environment so whatever it doesn't make it look down and I'm just gonna be following the basic directions here. And it may be adding. A resist her you don't have to know what these are away register. -- capacitor."

" And what's called a CD -- So it. So what's this all does is it sees the difference between black and whites -- right now it -- so basically if the studio -- recovered. It would register different values in the case of us in the competition when it does is -- that looks down and it sees the black of the -- board. And that eventually sees the white of this him aboard and then it knows huge turnaround because that Apple sumo arena is is. Bordered by a white --"

" It would turn back tool -- it's it's detecting this this this later. Mike -- edge as white which is a good thing something put together toward him."

" I now it's amazing. So now all it's doing is basically it's saying hey. -- minority edge of my world is an and it won't fall off the engine planet so that's pretty much what it's doing. But if you're gonna make us to a robot that's actually competitive you'll find it the other robot right so that's where you can add. Either infrared sensors. -- sonar yes that's in the case of this particular kid when finished. What you have is. Eight of those sixteen input output use you still have another eight left over and those are you happen to serve as a kind left and right so that's one out. Okay then you have the the input of the DC DS sells below is an hour to four. Want free so what precise grip so everything can be in doubles next we have the in for an outbound. He'd be. The errors that are sending out okay so now are up to six again in -- and then we have the infrared in bound. These little sensors and competitive and that's an attitude so -- or only using literally half of the power. This brain in terms of -- sensing abilities so. These tiny little infrared sensors are the same ones that are generally found on your television. So UD IR LE -- are what is on your TV remote. In the IR sensor. Is what is on your TV and it's basically the same thing and apparently these really only cost manufacturers a couple of pennies which is -- so cheap to put in these. Can't stick to serve I was and debris its cost quite a bit. But little -- like these are that expense so they're very easy. So now I've done is I've just put the sensors and we're gonna."

" And this is in the complicated task. It's just popping things in following interactions very carefully in making sure you're putting things in there isn't making it and I noticed or not -- Exactly point in the same direction minority. -- need to be parallels leaving it to be roughly parent loss -- so they're the sensor and the infrared LED need to be as close to as streamlined as possible. It's not mandatory it to be perfect but basically if you look. They're pretty much on the same -- little bit off but it's nothing to really worry."

" Who follow. The action following the -- and just using. A very simple program. -- basically all it does is -- it sees nothing it will go straight ahead. If it sees something within one I. And not the other and it will turn towards that one so that's why it's burning and follow."

" This is a good example of you know a very cheap hundred dollars really cheap for a robot that has you know. This many components but it's also -- we've only used eight. Of the sixteen IO ports on this -- We've got eight more and you could replace this tiny little -- we're here with a much much larger report you can replace all of -- And one of the cool things is is that like -- at the beginning this program is we're gonna do competition for anybody who wants to compete. What's gonna happen is -- and by the way he means but when we we mean me. Is and -- information via the into the program is if you build a three kilograms of a robot and I'm gonna show you how to convert this -- program. Sue -- 23 kilograms or about. We're gonna do me in studio robot competition with all the three kilogram robot we receive. In time for this and those robots and of this -- winning robot is to go to Japan."

" They like to take a moment now for a short message from the united states air force."

" drugs work. I'm airman first class US airports."

" Leave them point six -- That's big barrels in June 2004000 rounds of them. Here's the triggers his glory and irate 2000 rounds were. There's nothing like it. Do leveling the job done."

" So. Here you guys remember back in there are other episode this is the robot we built using scooter wheels. And -- motors and -- batteries countries and the posted harbor harbor freight you know drillers are very very quick and very simple motors. They're expensive part hope however are these I have -- the controllers never gonna need these -- controllers because of their three children civil room but. We're not gonna be using service here -- just are powerful enough. On the three kilogram class to actually do you but he couldn't connect -- you need real motors with real gear boxes in order to be effective. Cracked content. These particular speed controllers are actually overkill okay but we happen to have them we happen all of them. A really good speed controller might be like east scorpion from robot powered dot com okay and that's like a seventy dollars B controller that controlled both sides. Rather than having to speed controllers -- signed so. Let's build a three kilogram civil -- but. And we're not even gonna move anything off of this except for just gonna unplug these two cables -- There were deployed in the speed controllers from."

" Now candidates essentially are you going to. Take the speed -- office in mount a -- to York and remodel them on -- kilograms him about it."

" Sometimes the -- really hate you I started to pre assemble."

" Our three kilograms you know you can't just to speed things up but -- show you basically how I did this so if you look at what we've got here."

" What we've got our three. Motors all running. In parallel so basically if wanted to motors gives out get a -- are still going. And you can see here they've got little capacity -- and so a lot of people who never put together a bus before wonder why there's always capacitor. Which it looks like it's actually shorting out the motor that to pastor -- currently yellow dot isn't in fact churning up the monitor. All it's doing is its hope producing a line noise when you're running a lot of robots. There's a lot of time line please. It."

" This structure was something just cut out -- I. And yet it becomes like this and this is pre built kit from links motions. It it's a very good starter Kent. Night if you're expecting to win a competition and go to Japan. You're gonna need more powerful motors and even the ones that I recommend are good to Walt thrillers such as I was I was using to unscrew the -- about. Written those out and again you know annually use. Like the Harbour -- trailer here England used the highest work motors you can use this is all about work. What an interesting things and voters also most people -- is motors. Are both motors and generator should I turn one of these wheels because their own series you'll see other two wheels are actually turning some people might think because that's because they're they're together they're not touching and they're not -- together. What's happening is just that. The motor that turning is generating currencies which has been feeding it the other two voters and that's when it turned. This is the kind of thing where you're gonna be using."

" Using -- Go back to episode forty at sun you know revision3.com. Slash system scroll -- an episode forty how to build a combat robot. And all the things we talk about there are applicable here. So now I've got. Easily -- together from parts. The nice thing about these is they go together very quickly. Xxx Washington. So now really only have to deal does disease panels -- as -- panels come advocate this is the nice thing in this particular -- in this is again just to give people an idea. Of what you can do not necessarily what you. Should. So you can very easily fabricated an entirely different body using whatever part you have so long as it fit any twenty centimeter by twenty centimeter square box condemn anything you want and as long as you meet that weight limits I kilograms which is roughly six point six problems. So really the nice thing about kids like these is if you want to get started. You can see how easily they get together. The thing about consumer robots is that if you if you pay attention is and you careful. And you -- applicant kids you can actually put together he fully working three kilograms similar but in the one day one weekend TV set aside your Saturday and you know really if you search at the good morning you can told would be done if you have all the parts by a -- 1 o'clock. And then it's a question of customization because no robot is gonna win this competition go to. Japan with you know out it being customized without going -- and saying okay -- need to. You know release. Motors and put some better voters on -- two. Improve the speed controllers and so on and so forth."

" The want to -- one of responses that that they showed he absurdly simple virgin America visa signature cards. If you're frequent -- you know beverage in America offers sweet deals interest in the last awesome -- kicked out of luxury seats. High quality in C entertainment systems and a great crew. It's a visa signature card with no annual fee that you music Carter work. -- free travel no blackout restrictions NEC any -- it's that simple. And on -- all of this they're offering -- free flight for a limited time through November 30. That's right certified November 30 and you'll get a free one way ticket to anywhere virgin America applies. To check out absurdly simple dot com for more details of support us -- support our sponsors."

" So now we have been assembled. Three kilogram base which is if you notice twenty centimeters by twenty centimeters and if -- regulation. I'm using to I have high speed controllers and that's the one that you took out from the large combat robot exactly you don't have to use -- into politics and a scorpion from -- are very very good cheap speakers up seventy bucks that's off the top my -- And you can see -- all I've done is. I unplug. The server cables. And I replaced the server cables which would go normally to discern those underneath there but. To these. Extend your cables and so now isn't going to serve most these -- or cables just plugging into. Via the speed controllers and any speed controllers can use the same -- can actually using I advise. More for refugees there whenever you might be using it the same basic concept. So you can see I haven't changed. Any programming on. The microchip here McCain's policy program. You'll notice that I'm using you know the -- all better to Walt battery pack but that's offices fairly soon so let's see what happens. When. An issue we mount this if it starts -- the mountains. So here's Arafat. Put everything up on top of it. This is the best way to do it but this is a quick and dirty message quick and dirty message and again this is just give you get an idea of that it can be done so we're hooked up here but before it."

" You know. You can see. This is a very quick robots that basically it's not like the mini sumo when very slowly this is a -- period theory how workable robot. So if I. -- even a little bit it's gonna -- client. You would definitely want to do a better job mounting -- that."

" And spelling has. Not."

" All my fault."

" What do we have here. We have. This is. You could buy a basic Stanton. This is based extent of William board which is cheaper than a regular stampeded by the -- outstanding convened by what. Solar robotics zero or even -- authors differences in fact. Pair relax offers these specific forecast for humor about ready to go com. Yeah not. Forty bucks reports -- here you know about 300 bucks for the parchment here. And put all of this together. And you've got it working three kilogram. Twenty centimeter by twenty centimeter working sumo robot. All right earlier in the show we mentioned it debuted here -- this we'd offer for all of you that are interested in building a working competition levels sumo bot. David was offered to take its to a sumo competition Japan fortunately he can't attend. But heat and Fuji soft and generously offered the opportunity. For you to win his tickets. So what do they actually need to do what any union is built and --"

" Your three kilograms super robot to so what arrives by December 5. This gives you a couple weeks to build a robot and compete. I'll be hosting a competition out here in San Francisco all right guys here -- the rules pay close attention. Number one your -- robot must arrive on time that means by Friday December 5 2008. Late entries can't compete in will not be considered number two -- must be okay all of the rules as listed on mobile games dot net slash -- That means it has to be 83 kilogram class robot. That means that if it's three point 1 kilograms it fails and has been clean if -- two point twenty point one centimeters it's too big and -- it must also -- five seconds before starting. RT FM read the rules all the way through. Number three. While robots will be in a single elimination bracket if we get it robots they pair up and we end up with two for example. This is a head to head competition not a random drawing there can be only too. Number four if you play I'm going to can you need a valid passport that's way beyond my control or anybody else's we have no control over passports and visas."

" the State Department so start the peace process two days. Even if you don't opening up to verify that no substitutions. If you want to -- and they'll have to pay their own way. The -- six all the rules and details are available at remote games dot net slash -- please read them. The herself that this is -- competition. Don't email me your system asking how to build a super robot we just showed you how to publish some robot. Number eight you must -- fully assembled fully functional robot. After about who works straight out of a box with fully charged batteries he may have put the batteries but that's it we don't what -- civil Europa where you. Number -- to enter -- robot with a prepaid return receipt to David Calkins care Revision 3. 24153. Street suite 23 to San Francisco. 94 whatever -- If you want to hear about fact."

" Don't forget to return postage for the return trip with your -- But we've heard it I will put it when he's here in the little danger robot warning stickers achievable bonus prize just for competing. And remember this is not Revision -- so please don't spam the boards or staff with questions about the offer. Contest is only available people who -- a robot it's complete and can compete against other robots. -- right if you have any ideas comments or suggestions please email us -- system and revision3.com. And don't forget to visit the forms that revision3.com slash forum. Please visit our guys for previous episodes a system that division three dot com slash system. I'm Roger -- Connecticut talk. We thank you so much for watching and we'll see you next week."

" War."

" This episode is brought to you ride it certainly simple virgin America visa signature art. GoDaddy got and the united states air force. So everybody knows that I like robots would you like to build a good starter one with some basic artificial intelligence that it actually -- act to its environment. But good expendable robot -- the hundreds of different things is nice little robot. -- obstacles all of things and a lot more we'll show you how to make it simple but it basically about platform on today's. System. That's good so. --"

" Dave Dave Obama camp filling in for -- not sure I can quite Phelan -- shoes here 160. Yes now what exactly are we doing today what it is this thing this. Is obviously -- everybody likes robots. Not everybody but most of you watching this electability good robot so you might think where to start well PC robot is a great place to start the with the sumo by what is AC robot a similar but. Is a basic robot concept. That allows you to compete against other. Sumo robots but instead of having two big fat guys you know pushing each other gathering. What you have is too skinny little robots pushing each other rhetoric they're generally divided by weight classes this is a 500 -- about which obviously means it was -- program. Just like combat robots which have -- cover about elected 220 don't -- some things like that same kind of thing. Is it here what we have is a 500 gram Rabat which is also confined by sites it has the ten centimeters like ten centimeters. There's also 25 grams which are one inch by 100 grams which is through and I think iTunes and and three kilograms or six point six pounds for those people. Can't symmetric. And those are twenty centimeters by twenty centimeters or about eight inches square. Now what's the advantage of doing -- to all but over save your traditional combat robot to great advantage let's. Have a similar robot is that. They have sensors and their programs so basically. Instead of having -- remote controlled robot having programmed robot. Which basically you program it and then you can decide what it does where it goes and things like that based on its input. So these civil robots have sixteen input output. And what you do is you learn how to build it with sensors know these sensors. Do two things one they keep them in the arena so that the robot knows not to go out of the arena is just like a regular sumo. The first person out loses right in no -- that you trip and fall -- to shoelaces and thought to be reading you lose or way to the other big packet -- so. If -- robot goes out of the arena by itself it loses if he gets pushed out of -- of it so. It loses -- dimensions are right now got sensors this case are they like and for render outlook and sensors aren't so this."

" Robot uses infrared sensors here it's basically what you have we have to. Now ladies that emit infrared light you can't see them we humans can't see them. But they issued on infrared light which is that fox is back in the -- little sisters here detect that infrared light. They also have what are called CDS cells on the bottom. Any CDS cells detect contrast -- the same. Once there others sort of light sensors from its purposes so that the same ones that you might have in your garden if you have like the little. Solar powered rechargeable lights that turn on when the sun goes down in the turn off when the sun comes back up same sorts of things. So what these two sensors do is the sumo arena is black with the white. Outlined -- sensors basically if the robot's going out of the arena the sense that white line end of the program that you've written says who I should currently anyway. What these two sensors view is they did find the other robots basically have just randomly moving around the arena you fight the other about. Now what's really cool about this is that you can automatically reprogram it to do lot of different things so for instance. As it is now it's perfect -- level -- without modifying the hardware at all you can reprogram us to be alive power for it -- have a white line here. These two sensors that detect that white line if they go off the white line on the to turn back to the white line. You could also use this as an obstacle coalition cut kind of thing we're basically it always chases into an obstacle in -- into it."

" Or a collision of this robot we're basically just wanders around the room make sure that it never comes into walls. It's a very good starter robot -- Cool so why. It why -- sumo by a similar robot is a great first very much if you're looking to build your first -- This is pretty much the perfect -- about why number what they're autonomous. You learn how to both to work around the robots programmed it to move as well as to you know learn the basics programming. Number two. They're multipurpose. Similar but is designed to meet all requirements of the -- competition but it can be easily re purpose for a lot of other things such as line following such says obstacle avoidance thing. Number three to learn about sensors and -- so you learn all of those those things about how sensors were things like that. And as far as as far as building a robot this is how I got -- robots this is -- I I was just it. Programmer for a dot com for about ten years ago. And -- wanted to get an aeronautics and this is exactly how I got her so basically if you're looking to end up with a garage filled with about 200 different robots. And you really really really want to look alienate your wife your friends and and lock yourself and drive never ever seen again. But similar ultimately it's so it's essentially the Gateway device that leads you into the robot had it it's the Gateway -- next. Three point great places to go our remote -- subnet trust robotics dot com and parallel -- dot com. All three of these places have great mini sumo robot kits available but they all maintain the same basic philosophy of it's built for many similar competitions touched so what are we begin in this giant journey sumo robotics. Let's. Start buying building one -- of -- have gotten a case here Andrea Andrea. Show people how quick and dirty used the symbol like this."

" It's time to think one of responses at today's show godaddy.com. -- going to make an impact on mine godaddy.com. Has what you need. Starting at less than five bucks a month web hosting from godaddy.com includes. 99 point 9% up time point 47 support and free access to GoDaddy hosting connection. These places to quickly install over 53 applications. But we're track -- look. Drupal but -- commerce and more godaddy.com makes it easy to customize your own virtual dedicated server she's -- three popular clients. We're selector a Linux or windows server with all the plan options he needs. But senate candidate -- five that's as blessed by when you take out David additional ten bucks off any forty dollar or -- more. Some restrictions apply it to -- for details get your piece of the Internet and godaddy.com. Support us. But supporting the seats. So."

" The first thing when you do is find out how to make robots move now if you remember back in episode forty. When I showed how to make. Meaning combat robot which was -- in many as thirty comment robot. We learned a little bit about how -- motors move will serve those are really cool because service have. Built in motors gear boxes and speed controllers so you have to buy a separate speak true. In the 500 -- class generally what you're doing is you're building a robot. Which has all those things built in together because they use serve homeowners are you really always want to use a servant water. And me 500 -- I'm something much more complicated like -- three kilogram sumo robot you're gonna want to use separate motors here boxes and speak for hours. -- And we're gonna -- our brain. Is your specific location on the bread board that you need to so in this case and again you know we're not gonna -- everything because you guys can read directions as well as as anybody. So that directions basically show you exactly how to put this. The brain on so in this case we we put the brain. And there is exactly as many pins as there are rose on the -- board so it's really easy to put it on right and it's really hard to put it on -- Certainly that. And then. I'll put him there. And most kids will come with one of two things. In the case of something that uses what's called -- spread border protecting -- you typically get. These little -- insulated pins so these -- called jumps and and you can put these jumps around things that you can pull them off quite easily. And reconfigure but this is especially important if you're building something like be -- but. With the intent of reusing it reprogramming doing all sorts of other things so for those of you wondering. Why you would use a prototype and board like this rather than any permanent board. It's because you're going to lots of different things with this republic not having paid anything extra to do so let's -- about. It's even get it to move. And so I've just added a few quick jumpers. Two. Robust -- and connected servants. And now telling -- a program we can."

" We go forward backward. So -- only goes one direction right now written note to test another facility going to wonder."

" You know now. --"

" Not the most exciting with basically if you -- so let me understand. If you look at the actual program and you can see. That the code is just it's really five lines of code gets it is being encircled when you have been in a loop. Yes that's basically always doing man. Now."

" Let's do something more advanced and that's actually start to get it to talk to itself. -- in interact -- environment so whatever it doesn't make it look down and I'm just gonna be following the basic directions here. And it may be adding. A resist her you don't have to know what these are away register. -- capacitor."

" And what's called a CD -- So it. So what's this all does is it sees the difference between black and whites -- right now it -- so basically if the studio -- recovered. It would register different values in the case of us in the competition when it does is -- that looks down and it sees the black of the -- board. And that eventually sees the white of this him aboard and then it knows huge turnaround because that Apple sumo arena is is. Bordered by a white --"

" It would turn back tool -- it's it's detecting this this this later. Mike -- edge as white which is a good thing something put together toward him."

" I now it's amazing. So now all it's doing is basically it's saying hey. -- minority edge of my world is an and it won't fall off the engine planet so that's pretty much what it's doing. But if you're gonna make us to a robot that's actually competitive you'll find it the other robot right so that's where you can add. Either infrared sensors. -- sonar yes that's in the case of this particular kid when finished. What you have is. Eight of those sixteen input output use you still have another eight left over and those are you happen to serve as a kind left and right so that's one out. Okay then you have the the input of the DC DS sells below is an hour to four. Want free so what precise grip so everything can be in doubles next we have the in for an outbound. He'd be. The errors that are sending out okay so now are up to six again in -- and then we have the infrared in bound. These little sensors and competitive and that's an attitude so -- or only using literally half of the power. This brain in terms of -- sensing abilities so. These tiny little infrared sensors are the same ones that are generally found on your television. So UD IR LE -- are what is on your TV remote. In the IR sensor. Is what is on your TV and it's basically the same thing and apparently these really only cost manufacturers a couple of pennies which is -- so cheap to put in these. Can't stick to serve I was and debris its cost quite a bit. But little -- like these are that expense so they're very easy. So now I've done is I've just put the sensors and we're gonna."

" And this is in the complicated task. It's just popping things in following interactions very carefully in making sure you're putting things in there isn't making it and I noticed or not -- Exactly point in the same direction minority. -- need to be parallels leaving it to be roughly parent loss -- so they're the sensor and the infrared LED need to be as close to as streamlined as possible. It's not mandatory it to be perfect but basically if you look. They're pretty much on the same -- little bit off but it's nothing to really worry."

" Who follow. The action following the -- and just using. A very simple program. -- basically all it does is -- it sees nothing it will go straight ahead. If it sees something within one I. And not the other and it will turn towards that one so that's why it's burning and follow."

" This is a good example of you know a very cheap hundred dollars really cheap for a robot that has you know. This many components but it's also -- we've only used eight. Of the sixteen IO ports on this -- We've got eight more and you could replace this tiny little -- we're here with a much much larger report you can replace all of -- And one of the cool things is is that like -- at the beginning this program is we're gonna do competition for anybody who wants to compete. What's gonna happen is -- and by the way he means but when we we mean me. Is and -- information via the into the program is if you build a three kilograms of a robot and I'm gonna show you how to convert this -- program. Sue -- 23 kilograms or about. We're gonna do me in studio robot competition with all the three kilogram robot we receive. In time for this and those robots and of this -- winning robot is to go to Japan."

" They like to take a moment now for a short message from the united states air force."

" drugs work. I'm airman first class US airports."

" Leave them point six -- That's big barrels in June 2004000 rounds of them. Here's the triggers his glory and irate 2000 rounds were. There's nothing like it. Do leveling the job done."

" So. Here you guys remember back in there are other episode this is the robot we built using scooter wheels. And -- motors and -- batteries countries and the posted harbor harbor freight you know drillers are very very quick and very simple motors. They're expensive part hope however are these I have -- the controllers never gonna need these -- controllers because of their three children civil room but. We're not gonna be using service here -- just are powerful enough. On the three kilogram class to actually do you but he couldn't connect -- you need real motors with real gear boxes in order to be effective. Cracked content. These particular speed controllers are actually overkill okay but we happen to have them we happen all of them. A really good speed controller might be like east scorpion from robot powered dot com okay and that's like a seventy dollars B controller that controlled both sides. Rather than having to speed controllers -- signed so. Let's build a three kilogram civil -- but. And we're not even gonna move anything off of this except for just gonna unplug these two cables -- There were deployed in the speed controllers from."

" Now candidates essentially are you going to. Take the speed -- office in mount a -- to York and remodel them on -- kilograms him about it."

" Sometimes the -- really hate you I started to pre assemble."

" Our three kilograms you know you can't just to speed things up but -- show you basically how I did this so if you look at what we've got here."

" What we've got our three. Motors all running. In parallel so basically if wanted to motors gives out get a -- are still going. And you can see here they've got little capacity -- and so a lot of people who never put together a bus before wonder why there's always capacitor. Which it looks like it's actually shorting out the motor that to pastor -- currently yellow dot isn't in fact churning up the monitor. All it's doing is its hope producing a line noise when you're running a lot of robots. There's a lot of time line please. It."

" This structure was something just cut out -- I. And yet it becomes like this and this is pre built kit from links motions. It it's a very good starter Kent. Night if you're expecting to win a competition and go to Japan. You're gonna need more powerful motors and even the ones that I recommend are good to Walt thrillers such as I was I was using to unscrew the -- about. Written those out and again you know annually use. Like the Harbour -- trailer here England used the highest work motors you can use this is all about work. What an interesting things and voters also most people -- is motors. Are both motors and generator should I turn one of these wheels because their own series you'll see other two wheels are actually turning some people might think because that's because they're they're together they're not touching and they're not -- together. What's happening is just that. The motor that turning is generating currencies which has been feeding it the other two voters and that's when it turned. This is the kind of thing where you're gonna be using."

" Using -- Go back to episode forty at sun you know revision3.com. Slash system scroll -- an episode forty how to build a combat robot. And all the things we talk about there are applicable here. So now I've got. Easily -- together from parts. The nice thing about these is they go together very quickly. Xxx Washington. So now really only have to deal does disease panels -- as -- panels come advocate this is the nice thing in this particular -- in this is again just to give people an idea. Of what you can do not necessarily what you. Should. So you can very easily fabricated an entirely different body using whatever part you have so long as it fit any twenty centimeter by twenty centimeter square box condemn anything you want and as long as you meet that weight limits I kilograms which is roughly six point six problems. So really the nice thing about kids like these is if you want to get started. You can see how easily they get together. The thing about consumer robots is that if you if you pay attention is and you careful. And you -- applicant kids you can actually put together he fully working three kilograms similar but in the one day one weekend TV set aside your Saturday and you know really if you search at the good morning you can told would be done if you have all the parts by a -- 1 o'clock. And then it's a question of customization because no robot is gonna win this competition go to. Japan with you know out it being customized without going -- and saying okay -- need to. You know release. Motors and put some better voters on -- two. Improve the speed controllers and so on and so forth."

" The want to -- one of responses that that they showed he absurdly simple virgin America visa signature cards. If you're frequent -- you know beverage in America offers sweet deals interest in the last awesome -- kicked out of luxury seats. High quality in C entertainment systems and a great crew. It's a visa signature card with no annual fee that you music Carter work. -- free travel no blackout restrictions NEC any -- it's that simple. And on -- all of this they're offering -- free flight for a limited time through November 30. That's right certified November 30 and you'll get a free one way ticket to anywhere virgin America applies. To check out absurdly simple dot com for more details of support us -- support our sponsors."

" So now we have been assembled. Three kilogram base which is if you notice twenty centimeters by twenty centimeters and if -- regulation. I'm using to I have high speed controllers and that's the one that you took out from the large combat robot exactly you don't have to use -- into politics and a scorpion from -- are very very good cheap speakers up seventy bucks that's off the top my -- And you can see -- all I've done is. I unplug. The server cables. And I replaced the server cables which would go normally to discern those underneath there but. To these. Extend your cables and so now isn't going to serve most these -- or cables just plugging into. Via the speed controllers and any speed controllers can use the same -- can actually using I advise. More for refugees there whenever you might be using it the same basic concept. So you can see I haven't changed. Any programming on. The microchip here McCain's policy program. You'll notice that I'm using you know the -- all better to Walt battery pack but that's offices fairly soon so let's see what happens. When. An issue we mount this if it starts -- the mountains. So here's Arafat. Put everything up on top of it. This is the best way to do it but this is a quick and dirty message quick and dirty message and again this is just give you get an idea of that it can be done so we're hooked up here but before it."

" You know. You can see. This is a very quick robots that basically it's not like the mini sumo when very slowly this is a -- period theory how workable robot. So if I. -- even a little bit it's gonna -- client. You would definitely want to do a better job mounting -- that."

" And spelling has. Not."

" All my fault."

" What do we have here. We have. This is. You could buy a basic Stanton. This is based extent of William board which is cheaper than a regular stampeded by the -- outstanding convened by what. Solar robotics zero or even -- authors differences in fact. Pair relax offers these specific forecast for humor about ready to go com. Yeah not. Forty bucks reports -- here you know about 300 bucks for the parchment here. And put all of this together. And you've got it working three kilogram. Twenty centimeter by twenty centimeter working sumo robot. All right earlier in the show we mentioned it debuted here -- this we'd offer for all of you that are interested in building a working competition levels sumo bot. David was offered to take its to a sumo competition Japan fortunately he can't attend. But heat and Fuji soft and generously offered the opportunity. For you to win his tickets. So what do they actually need to do what any union is built and --"

" Your three kilograms super robot to so what arrives by December 5. This gives you a couple weeks to build a robot and compete. I'll be hosting a competition out here in San Francisco all right guys here -- the rules pay close attention. Number one your -- robot must arrive on time that means by Friday December 5 2008. Late entries can't compete in will not be considered number two -- must be okay all of the rules as listed on mobile games dot net slash -- That means it has to be 83 kilogram class robot. That means that if it's three point 1 kilograms it fails and has been clean if -- two point twenty point one centimeters it's too big and -- it must also -- five seconds before starting. RT FM read the rules all the way through. Number three. While robots will be in a single elimination bracket if we get it robots they pair up and we end up with two for example. This is a head to head competition not a random drawing there can be only too. Number four if you play I'm going to can you need a valid passport that's way beyond my control or anybody else's we have no control over passports and visas."

" the State Department so start the peace process two days. Even if you don't opening up to verify that no substitutions. If you want to -- and they'll have to pay their own way. The -- six all the rules and details are available at remote games dot net slash -- please read them. The herself that this is -- competition. Don't email me your system asking how to build a super robot we just showed you how to publish some robot. Number eight you must -- fully assembled fully functional robot. After about who works straight out of a box with fully charged batteries he may have put the batteries but that's it we don't what -- civil Europa where you. Number -- to enter -- robot with a prepaid return receipt to David Calkins care Revision 3. 24153. Street suite 23 to San Francisco. 94 whatever -- If you want to hear about fact."

" Don't forget to return postage for the return trip with your -- But we've heard it I will put it when he's here in the little danger robot warning stickers achievable bonus prize just for competing. And remember this is not Revision -- so please don't spam the boards or staff with questions about the offer. Contest is only available people who -- a robot it's complete and can compete against other robots. -- right if you have any ideas comments or suggestions please email us -- system and revision3.com. And don't forget to visit the forms that revision3.com slash forum. Please visit our guys for previous episodes a system that division three dot com slash system. I'm Roger -- Connecticut talk. We thank you so much for watching and we'll see you next week."

mari1ee

Started discussion: November 24, 2008 @ 4:44pm GMT

Episode 79 - Build a Sumo Robot From Hell [Discussion]

Ready to build your first robot? A sumo robot is a great place to start, and we've got the complete how to from David Calkins!

Watch or download here.

computoman
12 months ago
cool...
w0z
12 months ago
Hey guys, I really enjoy this show, but like a lot of others, I think lately it has been getting worse. This episode was interesting but honestly, a kit? I think the people that are watching this show know how to put together a kit. David even said himself how easy it is to put together a kit. Personally, I would really like you guys to do a few sequential episodes (like the MAME episodes) and build a robot without a kit from scratch. Maybe one that is actually affordable like the one in this episode. Just my two cents.
Daikun
12 months ago
Is it just me, or does the editing seem a bit...wonky in this episode?

Were you guys having technical problems? It seemed like there were noticeable jump cuts, and even a bit of static.
ToadX
12 months ago
I thought this episode was great! I hope to see more about this topic, such as explaining each of the parts more in detail (such as gearboxes). I would've loved to compete if you had given us more time to build it! I'd actually love to see more competitions like this in the future!
o.neill.kid
12 months ago
I already made a topic about this but, I really do want an answer.

Okay so which robot did you guys use, and what website did it come off of? (I know you suggest some websites at the start but which one did you use, and which robot did you get?)

Also you said that they were only $100, but on the site they are $170+???? I did find this one, it looks okay; http://www.trossenrobotics.com/solar...-sumo-kit.aspx but I don't know its only $100 dollars, and doesnt look like it has much.
Also I live in Canada and it would be $100 dollars shipping alone. So I would still end up paying $200 dollars.
This kinda sucks.
NeBan
12 months ago

For those who don't have hundreds of dollars lying around...

Several years ago there was a very good game called Mindrover. (http://www.mindrover.com)

The game is essentially the same idea as today's show, just on computer. You build your robot using a small selection of hardware components and chassis and then program it to act any way you want. The robots can be programmed in game using a very easy to learn visual programming language. To compete with other players, you only have to email your robot to them. There are also a few websites that hosted ongoing competitions, one of which at least is still active (http://www.battlespot.com).

While the hardware isn't as complicated as that of a real robot, the programming aspect of the game is every bit as challenging as the real thing. And if you don't want to use the graphic programming language, there is also a text based language (called ICE).
NeBan
12 months ago

More on mindrover

The company cognitoy seems to be defunct now, and mindrover is abandonware. There are also many other games that use the same concepts, but none are as intricate. The demo is still available through the website.

I would recommend this game to anyone who wishes to program battle bots of any sort. And if anyone can get to the top of any of the battlespot rankings they will have my admiration.

(I need to start playing this game again)
NeBan
12 months ago

Even more on mindrover

And as a final addendum (I hope) battlespot does have a sumo bot competition, if you want to hone your sumo algorithms. They have a good test set, though on a hover craft design (omitting friction).


/*** Please don't let me get banned from revision 3 for mentioning something illegal ****

Pirate bay may find you a copy of this program. If not, I'll check back after thanksgiving
and I will be able to distribute something if I have not been struck down by the forces of
what ever governs this board.

And while I'm digging my grave:

09-f9-11-02-9d-74-e3-5b-d8-41-56-c5-63-56-88-c0

May any deity that is listening have mercy on us all, and this community that we inhabit.

******************************************************************/

p.s. I liked the show on real robots.
echos
12 months ago
I find that only having a 2 week deadline to build and submit a robot is going to be a challenge, since mail order parts can take time.

Since I myself do not have the resources to achieve this by the deadline. I thought at least to share my ideas would benefit others.

For drive motors I think the best solution would be to use motors from a power window regulator. These use a worm gear setup and produce a large amount of torque, your speed will suffer but you'll be able to push just about anything including small children.

The wheel I would recommend should produce a good surface area, a tank tread would probably be ideal, since worm gears are neigh impossible to move when not being driven by the motor.

Also here are some other good micro controllers to look at.
http://www.arduino.cc/
http://gumstix.com/store/catalog/product_info.php?products_id=203
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