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Originally Posted by evanisthat!
Right now there is only one rotational bearing in the design, however a few people have commented on the stability of that during a match so in gen2 there will be 2 bearings, one low and one high. the sprocket is off the shelf but requires serious reworking, its a 70 tooth #25 chain with a 3 inch square cut in the middle... As cost goes...hmm... I have no idea. Working the parts would be the most expensive (especially the sprocket) as everything else is a standard part. When I am done reworking the whole design, I will post it with the inventor files for all to use. My final goal is to make it 2-speed, with independent swerve per side.
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Since the first time I met you (you were in 8th grade and met you at the local FLL competition), I knew you would be the right hand man for team 108 someday. I am very impressed with the design, but I do question weight. The designs you have shown me, you were using quarter inch plates (I know this particular one wasn't made for a FIRST robot), but if you do plan to make a swerve drive for next year (for FIRST), I would suggest to look at those quarter inch plate you are using and take some weight out of there. Your overall chassis design (the one you showed me) looks very good. I would suggest to post it up here asap and get inputs from others.
... now post the picture up and go back and concentrate on school work, you gotta get to MIT remember? Good luck, Evan.