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Unread 05-04-2006, 20:33
Exotria Exotria is offline
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Re: Truly omnidirectional omniwheels?

Yeah, casters are what I've been talking about. Although with further thought, I've realized that if you have the rotation limited and the caster needs to move that way because the robot is moving in such a way that it wouldn't spin the other way... might have to do something with springs so that the wheels move to default when off the ground. Of course, ball bearings were my first idea, but then I realized the whole 'robot not moving' thing, so I switched my idea into the (heavily modified)casters plan. Probably not traditional casters, though... might want the axis in the center.

And FLR was awesome. Team 229... can't say as I can recall that one, and you have the 1126 site in your profile. Link me to a pic so I can remember. 1126 was awesome, of course. I remember- you guys CRUSHED the opposition. It was so fun to watch! Your shooter was pretty danged great. We(the Duct Tape Bandits) couldn't say we were spiffed to lose, but we had the six hour bus ride home on the AWESOMEST BUS EVER to make us feel better. Seriously, we had a 42 inch widescreen HDTV, strobe lights, lasers, a fog machine, ceiling mirrors, fiber optics, subwoofers, hardwood flooring, sideways leather seating(with tables and cupholders), those things with the electricity where you touch them and all the electricity is attracted to your hand... it was the greatest bus ever. Most definitely my most fun experience in a while.

Also, the inspiration for the omniwheels came when I was bored enough to try to think of an innovative drivetrain, so I was thinking up a hexagon design, until I realized it wouldn't work with omniwheels because the little wheels wouldn't be facing the proper way, and if you moved them so they faced the right way, they wouldn't be facing the right way for moving other directions. So I decided I'd think of a way to make a better omniwheel that would ACTUALLY be omni, instead of just forward and sideways. This was all at one in the morning, of course... took a nap soon as I got home, woke up at 11, didn't feel like doing homework... all that great stuff. You can think up crazy stuff at one in the morning. Best time for innovation.

...yeah. So, with modded casters(methinks they'd need some reinforcements to hold a hundred pounds of metal moving at high speed- I'm thinking some sort of box protection design with stronger sides for holding the wheel so the axel doesn't break under stress), omniwheels can be made to be MUCH more omnidirectional for weird drive trains like the hex drive train I want to do.

...I need some sort of CAD program for my computer so I can draw this. Or I can use one of my dad's programs. He has Python. Would that work for CAD drawings?

(I'm just posting all this stuff here instead of talking with my team because my team probably wouldn't listen to me-not very popular with people because I have problems censoring myself in conversation and am hyperactive)

All right. More opinions on my(hopefully now clarified) idea?
 


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