Thread: Newton
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Unread 12-04-2004, 15:34
Marc P. Marc P. is offline
I fix stuff.
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Re: Newton

Yeah, we did make weight, fortunately. I think the final weigh in before we shipped was something like 128.6. It definitely looks much heavier than it is...

It's really just aluminum tubing, and a pretty thin stock at that. The nature of the structure makes it rigid, and the "tennis rackets" of wood really help save weight.

I think the coolest thing about the ball pickup is each band wraps around the balls to hold them in place. I think it's pic 2 that shows the cam shaft best- as each rung moves along, a cam pulls each band tight around each ball. It really looks great when we're filled up, and with our 2x ball grabber arms up high, we look like something of a scorpion, as pic 1 shows. Here's some vital stats for those interested in scouting:

Max ball capacity- 7
2x ball- capable of grabbing, holding, and replacing, but only from mobile goal
Wheels- 6 pneumatic tires (I believe 6" diameter, can not climb steps)
Transmission- 2 speed (hi/low) shift on the fly gearbox, triggered by pneumatic cylinder (don't know exact speeds, but we're pretty quick).
Pneumatic goal grabber
Winch driven bar hanger- Hook is deployed by spring energy, once latched from side, hook detaches from arm, and is winched in by drive motors.
Autonomous- only rudamentary motion as is, but many programs have been written and are ready for testing upon uncrating.

If there are any other questions, I'd be happy to answer them via PM! Thanks everyone!