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What is the top part of it? Is there a hood that follows a radius from the wheels or just a bar
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It's copper pipe that we bent around the radius of the wheel.
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It's easy to forget in the excitement of your first build that your robot is likely to get the living crapola rammed out of it during games. We ram ours into walls, flip it over onto its sides, tug on cables... I suggest that, as soon as you have it working, you do the same -- and then fix whatever no longer works, and then do it again, and again, and again, until 2-5 times in a row there's nothing to fix.
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Will do; we just want it to work first though
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[Consider some kind of funneling system from your ball pickup, if you haven't already. The dual rails help a great deal, and one belt might be sufficient -- three-point centering is older than Newton! (The scientist and the field).
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I see. I'm thinking the bottom of the conveyor can start open, then we can put two angled sheets of lexan that will gradually compress the ball to be the same each time.
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Yup. That's true with everyone. Your 'sweet spot' technique is a good one, to be sure!
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Thanks!
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We made our own from surgical tubing, 12 gauge wire, and superglue.
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Impressive!