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Re: #25 Chain
We (4901) had issues with our #25 chain early in the season (at Palmetto) thanks to poor quality half links. We switched to continuous chain runs made with the dark soul tool with no half links and manually tensioned it with bolts and tensioner slots. Didn't break a chain since then. I should also mention our controls mentor Ryan implemented a SLEW control onto our drivetrain to make it so that the drivers couldn't slam full forward to full reverse instantly. That was a suspected issue causing chains to snap.
The second team I worked (5632) with continued to use half and master links. They used the "good kind" with the non-cotter pin links. They broke chain very often. They tried upgrading chain type within the spectrum of #25 chain and it only made the problem happen less often instead of solving it completely. We started with Vex Pro chain. It didn't even last 5 minutes from what I was told during testing. We upgraded to a Browning (I think) HD chain and that lasted 10+ matches normally.
__________________
John Fogarty
2010 FTC World Championship Winner & 2013-2014 FRC Orlando Regional Winner
Mentor FRC Team 1102 M'Aiken Magic
"Head Bot Coach" FTC Team 11444 Garnet Squadron
Former Student & Mentor FLL 1102, FTC 1102 & FTC 3864, FRC 1772, FRC 5632
2013 FTC World Championship Guest Speaker
Last edited by JohnFogarty : 24-05-2016 at 19:01.
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