View Single Post
  #13   Spotlight this post!  
Unread 04-09-2012, 22:16
R.C.'s Avatar
R.C. R.C. is online now
2017... Oooh Kill em, Swerve!
AKA: Owner, WestCoast Products
FRC #1323 (MadTown Robotics)
Team Role: Engineer
 
Join Date: Feb 2008
Rookie Year: 2006
Location: Madera, CA
Posts: 2,184
R.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond repute
Re: Timing belt in drive success

Quote:
Originally Posted by BrendanB View Post
This fall our team is looking into designing a few custom chassis utilizing newfound resources and skills our team as acquired. One of the areas I have been looking into is WCDs and more recently I am looking into using belts instead of chains.

My question for teams who use belts is: how do you attach the pulleys live axles? Do you hex, key, or use set screws ( )?

Additionally, is there a healthy range of movement for your bearing blocks when using belts? I understand chain stretches overtime and I heard pulley aren't known to stretch but do you leave extra room to make taking belts on and off easier?

Sorry for all of the questions, our team is small and young but we are trying to absorb as much as possible!

Thank you!

BrendanB
Brendan,

If your doing a WCD like 254/968 have done. Then broach the pulleys.

If you really wanna save some weight and lower part count just do center to center on belts. Don't even put in the bearing blocks. Sdp has a real nice calculator on their site to determine the correct c-c.

-RC
__________________
R.C.
Owner, WestCoast Products || Twitter
MadTown Robotics Team 1323