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Unread 08-08-2015, 22:54
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DavisDad DavisDad is offline
MechE
AKA: Craig Rochester
FTC #8470 (Team Technado)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2012
Location: Boston
Posts: 317
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Re: [FTC]: Drive Platform- Design Exercise

I tested the angle drive for torque strength. I jigged it up and applied force with a torque wrench set at 20, 25 & 30 in-lb (480 in-oz). At 30 in-lb, the shaft started "unraveling", twisted and broke. It's a bundle of wires formed into a square shaft.

I'll drill out the wire shaft and make a coupling to press fit into the 4mm ID/6mm OD bearing shaft.



Last edited by DavisDad : 08-08-2015 at 23:03.
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