pic: 2158 chain tensioners

[Richard McClellan]

Originally Posted by rc_cola1323

i recommend to going to mcmaster carr and typing in chain tensioner and picking the floating ring tensioner

I've tried mcmaster's spring roller chain tensioners before and they didn't work very well.....the polyethylene wore down pretty quickly after breaking in the drivetrain, so I'd be worried about having similar problems with the floating tensioners, though I know they've been successful for others before. Plus, our solution was a little bit cheaper than buying custom tensioners

Originally Posted by Uberbots

hey um... on your power sprockets it doesn't look like you have nearly enough chain on them... isn't the recommended coverage 120 degs?
or are my eyes fooling me?

That's probably the angle that the photo was taken. Our Solidworks model says we have 117º of chain wrap around each of the drive sprockets and we haven't had any chain slip since we put the drivetrain together, so we should be good.