Robot Challenge !!
Ok, here’s the challenge. Build a AWSOME robot .I know there a lot of people out there with some really good programming skills that don’t have the mean’s to build a robot. I have the means to build the robot ( I have fun building) and I can program ( I Hate programming). So Here’s what I have, A 2.5 hp Honda motor, where should we go from there?
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Comments
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
I'll take you up on the challenge, my friend!
Assuming a 1.5HP Robin-Subaru engine is also an acceptable contender, I should have my entry posted in this thread by the end of the weekend.
Over the past month I've used nearly every tool I have. The workshop is a total mess. The children are neglected and my e-mail has piled up really high. This robot isn't programmed yet, but it shall be within a few more days because it is a demonstration for Parallax at the Embedded Systems Conference. So it has to get done.· It's really not all that unique of a design by any means, but it sure took a long time to draw it and build it.
Going to finish this thing up right now, so adios!
Ken Gracey
Parallax, Inc.
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Something Sponsored? And an All Parallax / only Parallax, Annual event
with a bit more time involved (then 2 weeks) and in the "off season" for clubs, schools (stamps in·class) students·not competing with in FIRST.
Keep the current theme of an "Outdoors" petrol powered bot (or at least make it the "Big Bang" for the end of the competition) (Gotta have a Main Event) and·have some other indoors competition. Classes for SX’ers, Stampers and Propeller heads.
People could converge on Tracy or Sacramento or maybe even Reno or Tahoe to race or compete on an annual basis
Nothing like racing to accelerate the learning curve and produce advancements and boost marketing, lol
Parallax Dealers could get discounted display space that they might not have been able to afford previously within a regular
convention·center event.
Good press too.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/24/2007 3:24:52 AM GMT
It's tough to do much in a week, to be honest. I've been in the same project for about six weeks, night after night. But try anyway. I'll support you with the hardware.
Quirkus, I concur about an open contest. We can put that together. It's a good idea.
- Ken
do you ever say anything nice ?
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
If we can get a web robot together in a week , will you display it ?
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Sorry Brian
Ok, assuming my gathering is right, how are we supposed to go about designing such a robot? Does it actually have to exist in someone's backyard in a week or can it be conceptual? If it actually has to exist I already have the chassis and motor controller for it. I have a powerwheel's chassis(Link(Imagine w/o the kids)) and a few HB motor controllers if we need it for the project
Lets start this over , lets shot for next years Embedded Systems Conference. We are going to build a robot that the whole forum has input , I'll do the maching in my shop and post photos as we go . In my mind we are shotting for something about the size of parallax's R&D robot ,But I'm open to suggestions. I know Ken has been working really hard on his robot the last couple of weeks ,so lets not put any more pressure than we have to on him.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/24/2007 12:44:51 PM GMT
Here’s a list of tools I have :
small lathe ,small mill, small cnc mill , cnc plasma cutting table , small foundry ( can pour about a 1.5 quarts of aluminum at a time) , small vacuum forming machine , small plastic injection molding machine , small horizontal milling machine (can cut gears) , Bridgeport mill , 12 x 36 lathe , mig welder , tig welder , 50 ton press , 48" pan & box brake and misc. woodworking tools to build patterns for casting. I’ll post photos of everything later. I'll try to take this as a step by step process to give everyone a feel of what it takes to build a big robot.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/24/2007 12:42:35 PM GMT
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Often it was bacon wraped filet mignon. LOL. Just a little blast from·my past, Brian
Post Edited (Capt. Quirk) : 3/24/2007 6:45:51 PM GMT
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
I'd love to help out with this, but I've never done anything of this sort.
Back to robots.
For anybody that's interested in doing some rapid prototyping of small to medium size parts, Aluminium castings can be made very quickly. In the past I made (2) 3 into 1 exhaust manifolds for the Kaw ZXi 900 & Yam wave raider 1100 in 2 days time and mounted to the dyno ready for testing.
Delrin is another great rapid prototyping material. It's a machinable plastic and when used in place of metal, you can finish machining a project·at least 3 to 4 times faster than normal.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/25/2007 4:24:30 PM GMT
Lets get started , heres what I have for parts.
·2- TRANSAXLE's· (these need to be converted to 12 volt)·2@·$139.95
·Permanent magnet electric transaxle. Reversible DC motor drives transaxle with differential action. Electric drive motor is 3-5/8" dia.
SPECIFICATIONS
1 - 12 VDC 110 LB. LINEAR ACTUATOR· 1 @ $72.95
linear actuator, Built-in potentiometer allows for use with position-sensing circuits. Metal housing is water resistant and sealed against dust. Permanent magnet motor. Non-adjustable limit switches at end of stroke both directions.
SPECIFICATIONS
·*Any comments are welcome and encouraged (that includes parallax employee's), I'll keep a running total on how much·I have in parts ( I hope my wife don't look at this forum :- ). I think I have every sensor that Parallax makes and·I will set this up to use a Basic stamp, SX or Propeller. this is going to be a 4 wheel drive·(well at least as much as·your suv)·,articulate steering and pivot 2 directions in the center to be able to drive on rough terrain.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/25/2007 7:29:17 PM GMT
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
I'm here for the challenge, and my entry is hereby submitted below. It doesn't run yet, but it will (about 13 MPH). I'll post more details later, because for now I need to get it running! I've taken great care this time and didn't rush too much.
Your bot looks cool so far. I'll like to see that articulated steering in action!
Ken Gracey
Parallax, Inc.
Thats a nice looking machine , Did you machine them rim's yourself. working on the connector now , Need to order some parts tomarrow . I'm going with DC ,I work with oil all week long and have a hard time bringing·it into my hobby :- )
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
I hear your concerns about working with oil all week. I work with e-mail all week and try not to bring it into my hobby! But I bet you can do some wonders with hydraulic power. We may need to tap your hydraulic skills for a larger robot. I think I'm ready to make something large, really large.
Battery should be a nice, easy solution. Please keep posting pictures.
I machined every single part except for the engine, alternator and motors. The main mistake I make in my robots is that I get highly committed to a certain design, engaging myself in making lots of parts before I know whether or not it will work. I need to turn some of the project into smaller side-experiments before I get so wound up. . .
Ken Gracey
what are the specs on your electic motors?
Fixated? Big time. You got that right. Kind of like a crow and roadkill.
Considering the tools I have, a bit more rational planning and thought ahead of time would be well-worthwhile towards more well-planned projects that work as I think they will.
When are you going to start sharing your projects with us, Quirkus Maximus?
Ken Gracey
I figure it's a lot easier to test bots·on wheels, than airplanes that require a dry lake bed or airport.
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Soon the man in the white coat will let me drive again, lol. Then I'll be able to go back out to my workshop build something again, instead of programming my SX all day and driving Brian crazy in my spare time.
Post Edited (Capt. Quirk) : 3/26/2007 6:21:20 AM GMT
Ken,
·I have not ruled out a hydraulic robot . I have a pump & motors (photo below), I went with a little differnt motor than the r&d robot . These motor's have valving inside them that help with torque at low GPM flow rates , they are rated at 1 GPM at 2000 psi and 100 rpm's . Should be able to control speed with just adjusting motor RPM (pump motor). The reason this is on the back burner is I havn't been able to locate a steering valve that I'm happy with .
Here's a good link for anybody that want's to try their·hand at machining and has more time than money . http://www.lindsaybks.com/dgjp/djgbk/series/index.html
Awsome book's even if you don't build any of it.
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
Post Edited (Brian Beckius) : 3/26/2007 11:49:29 AM GMT
·Don't have a lot of time , I'm on my lunch break . Parts showed today , these axels are just asking to be hydraulic . Have to do some calculations tonight .
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein