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Unread 10-01-2008, 01:14
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
Team Role: Engineer
 
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Re: what Chain size and tensioner to use for the drivetrain

Quote:
Originally Posted by Darunada View Post
the chain doesn't eat the HDPE away?
Not any appreciable amount over the course of a competition season.

If you use softer or lower density plastics, the roller chain will start eating away the plastic rather quickly. But the High Density property of HDPE is great to act as a low-friction surface for the roller chain, without being eaten away.

On our previous robots, after four or five competitions, all we'd notice on our chain tensioners would be a two small grooves about 1/16" of an inch deep.
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Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

世上无难事,只怕有心人.