View Single Post
  #5   Spotlight this post!  
Unread 12-01-2004, 22:35
Joe Johnson's Avatar Unsung FIRST Hero
Joe Johnson Joe Johnson is offline
Engineer at Medrobotics
AKA: Dr. Joe
FRC #0088 (TJ2)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 1996
Location: Raynham, MA
Posts: 2,644
Joe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond reputeJoe Johnson has a reputation beyond repute
Re: How to make gears mesh properly.

Quote:
Originally Posted by Ryan Curry
I think for calculating the distance, <snip> ...I am not positive on this though....


-Rc
Then don't answer!

The see Andy's anwser -- I have not yet read it, but I know Andy and I suppose you will be fine with what he recommends.

Joe J.

P.S. The addendum and dedendum of standard (i.e. off the shelf) gears is typically 1/DP and 1.2-1.25/DP This means the standard pitch dia is NOT the average of the Root Dia and the O.D. For the record, In FIRST, I almost always add a few thousandths to the theoretical center distance. extra backlash will almost never kill you in FIRST. Jamming the gears together because the gears are a bit out of round will eat up your power like opening the frig on a hot summer day.