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 If no hint or advanced BOM don't come out, will it make you not participate in FIRST this year?? - Elgin Clock [more] |
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| If no hint or advanced BOM don't come out, will it make you not participate in FIRST this year?? - Elgin Clock [more] |
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Re: Gearbox Question
Decreasing the diameter will increase the force applied to what the winch is pulling. But it will also increase the time it takes to move it.
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#2
14-03-2014, 12:18
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Re: Gearbox Question
Team 4055 had a problem with tensioning our catapult. I don't know exactly what is a problem with yours but we had a few issues.
1) We had one CIM tensioning the catapult 2) There was a large amount of friction because we didn't use bearings (Bad decision) 3) We were applying force to our arm at an extremely small angle. Fix 1) We designed a completely bolt on mechanism. It was a 4.5 to 1 ratio with two CIMs. 2) We upgraded to a 1/2 in keyed shaft with Oil Impregnated Bronze Bearing  http://www.amazon.com/Spyraflo-PB1-5...bronze+bearing 3)Force has it's maximum efficiency when the force is applying perpendicular to the arm. Relocating our attachment point for our winding strap helped.  |
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