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Making a fast ball pick up device, thats the easy part.
Finding enough weight after the dust settles to make a half way decent drive train, goal claw, brake, etc. thats another story.
Anyways, 95 used a series of rollers on the front end of the bot, that rotated inwards at very high rpm. They were powered by two FP motors, and at full speed ran about 1400 rpm. Rollers rotate in, balls get sucked in. Balls get sucked in, balls go into hopper. Balls sit in hopper till dumped. Hopper dumps, balls go in, and the people rejoice. Yea.
Goal is then stolen from us, because we have no torque.
Thats pretty much how it went for us. The moral is, don't specalize the 'bot to the point that you can no longer do anything else. There were plenty of other ball collectors, that while they couldn't pick up as many balls or pick them up as fast as we could, could more reliably hold onto the ones they did score. I could give you terribly detailed info on our ball sucker, but it wouldn't do a whole lot of good, because it would be so difficult to use for anything else.
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