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Re: [FTC]: Drive Platform- Design Exercise
Looked at stress in square shaft. Assumed round shaft 2.5mm diam and 500 in-oz (3.53 Nm) and plugged into this on-line calculator: TORSION OF SOLID AND HOLLOW SHAFTS
It returns 160 kPSI (1100 MPa). That about 5x the the stress to break a steel rod. It's not looking good for the square shaft. Now I need to look at the gears; they probably aren't designed for the torque either...
Last edited by DavisDad : 06-08-2015 at 15:06.
Reason: fixed 500 in-lb --> 500 in-oz
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