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 While [a college FIRST competition] would be pretty fun, I think that you'll see this build season that mentoring is a heck of a lot of fun too. (except when the kids pretend to cut their fingers off to see your reaction) - Beth Sweet [more] |
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By: Andrew Schuetze
New: 08-05-2010 22:25
Updated: 08-05-2010 22:25
Views: 1958 times
HS juniors from the LEE STEM academy have converted a ROV-in-a-Box kit to a frame build from Tetrix metal and controlled via the NXT/Tetrix motor controllers. A simple tele-op code written in RobotC along with a RCA video to USB converter allows the pilot to control the ROV via a laptop with a live video window open.
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09-05-2010 21:06
MrForbes
Re: pic: Tetrix-Based ROV project
Neat! Is there more info about it somewhere?
The ROV-in a Box is a great starting point, and it's easy to add to it to make it do more. The Tetrix sized motor controllers are probably just right. The Logitech game pad (like a PS/2 controller) should be just right for controlling it. I drove an ROV with a PS/2 controller today 
09-05-2010 23:23
Andrew Schuetze
Re: pic: Tetrix-Based ROV project
I took a chance that the Tetrix motor controllers could handle the bilge pump motor as a quick web search didn't yeild a data sheet for the controller power capacity. I like the ability to program with the game controller and since we needed a laptop poolside, I found an inexpensive USB converter for the camera video so the laptop serves two purposes. We just finished bouancy test number two so nothing on paper as of yet.
I'd like to experiment more with the Tetrix metal for the frame as we just discovered that we can chase the wires in the u-channels and then put pool noodles in that channel for bouyancy. It could really clean up the build.
10-05-2010 01:01
MrForbes
Re: pic: Tetrix-Based ROV project
One thing you might discover with pool noodles, if you go very deep, is that they compress...and you lose more buoyancy the deeper you go! Usually not a problem in an 8ft pool
20-05-2010 18:57
Andrew Schuetze
Re: pic: Tetrix-Based ROV project
Want to learn more about under-water robotics
Consider attending a low-cost, 2 day workshop here at the Texas Institute for Educational Robotics in San Antonio, Texas. It will be led by the Texas MATE-ROV tournament organizer, Ike Coffman. Higher priced registration option allows the participant to keep the ROV that they build in the workshop. We will be using the ROV-in-a-Box kits to prototype a basic ROV plateform. The ROV pictured in this thread will be available for hands-on demo / viewing during the workshop. Send me a pm / email if you would like to have a flyer sent to you via email attachment. Information learned will allow you to have a running start for either/or both the MATE-ROV or NURC competitions next year. Workshop will be in mid-July. Proceeds from this workshop will be used to provide a small stipend for the workshop presenters so this is a not for-profit event.
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