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Re: pic: 6 Wheel Drivetrain
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Thank you for all for your input Bryan Gallo |
Re: pic: 6 Wheel Drivetrain
I'd recommend ditching the wedgetop tead and omni wheels for normal solid rubber wheels like colsons.
They're cheaper, and won't need replacing/maintenance. |
Re: pic: 6 Wheel Drivetrain
Bryan,
Nice work. I am trying to get my class to evaluate different disigns with different materials. Could i get a copy of the CAD file? It would help with the analysis. |
Re: pic: 6 Wheel Drivetrain
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http://team1323.com/cad/pages/teamhosting.html If you would like to check these out, Bryan has 5 of his bots on there. -RC |
Re: pic: 6 Wheel Drivetrain
Yeah! there are 5 up there. 2006-2009 are very durable tank drive drivetrain systems. They've been through pretty harsh competitions, and worse yet, off-season, and they've lasted through that. If you have any questions about any of those designs i'll be more than happy to help. PM me or email me.
I'll try to post more drivetrains on the team hosting website. I have a few on here, along with our T Shirt Shooting Robot the Screamin' Eagle! I just need to finish up some work on it. |
Re: pic: 6 Wheel Drivetrain
Nice work.
Consider making the thin strips that lead from the edges to the wheel axles a bit thicker, perhaps like a filled-in "X" or hourglass shape instead of an "I". We used a similar system of 80/20 in 2009 and it worked out very well. I also like the concept of using the strength and stiffness of the bumpers as a structural element. Some spots for mounting them would be wise. |
Re: pic: 6 Wheel Drivetrain
Looks cool
We used a similar design for Overdrive in fact we used the same middle wheels it worked out well it would be great for contacts We are working on somethig for contacts as well |
Re: pic: 6 Wheel Drivetrain
You mentioned cheerleaders lifting it, who's going to be driving it? 8" wheels direct driven from a toughbox is about 14 feet per second. It takes a lot of practice to be able to control a robot at that speed. That doesn't seem wise for a demo robot that is either being driven by inexperienced drivers or driven around people.
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Re: pic: 6 Wheel Drivetrain
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Re: pic: 6 Wheel Drivetrain
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If you layout your sprockets and chain flat on a table you can get the dimensions center to center of the axels and you will not need tensioners. We did this on our test bot and it worked pritty good. |
Re: pic: 6 Wheel Drivetrain
A robot only really needs a few motors. You could swervedrive it or use tank steering, where you have two motors, one on each side, and them power three wheels on each side if you wanted that many.
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