02-01-2015, 17:44
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no bag, vex only, final destination
AKA: Pinecone
 FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks) Team Role: Mentor
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Join Date: Dec 2008
Rookie Year: 2006
Location: Glastonbury, CT
Posts: 7,707
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Re: Best Practices for Not Crushing Thin-Wall Tubing
Quote:
Originally Posted by JamesCH95
Why do you think it was creep? My understanding is that creep typically takes many hours, or days, to manifest.
I'd think a plate on the outside of the tube would be a lot easier and probably lighter than an insert, too.
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Creep is the wrong word, I think. What I meant is that wear on the hole from vibration or cyclic loading of the bolted part happens much more quickly on .04 wall tube than any other size. This kind of wear is something that I've been able to ignore elsewhere in FRC due to the short life span, but in this tubing you can't. We added some plates to increase the effective material thickness at the hole site and riveted the plate to the nearest neighboring holes.
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