Thread: Which shaft encoder to use?
View Single Post
  #3   Spotlight this post!  
Unread 13-06-2005, 14:01
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
Team Role: Teacher
  
Join Date: Jul 2002
Rookie Year: 2002
Location: Glendale, CA
Posts: 8,516
sanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond repute
Re: Which shaft encoder to use?
A good way to couple it to the shaft is to drill and tap a hole in the shaft for a socket head cap screw, something like #10 would be good if your shaft it big enough. Then, heat shrink the head of the screw to the shaft of the encoder leaving a little space in between. The ridges on the head of the screw and the surface area of the relatively long shaft encoder shaft will prevent slippage. Now you have a very cheap flexible coupling. I would recommend mounting the encoder with a rather thin piece of sheet metal so that has some flex too. Rigidly mounting/coupling encoders can cause them to wear and/or break.
__________________
Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004