Go to Post Everyone should go look at the baby pics….it will make you feel better. - wendymom [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #4   Spotlight this post!  
Unread 16-03-2013, 19:43
Bryce Paputa's Avatar
Bryce Paputa Bryce Paputa is offline
FF TSL: Frog Farce
FRC #0503 (Frog Force)
Team Role: Alumni
 
Join Date: Jan 2012
Rookie Year: 2008
Location: Novi Michigan
Posts: 454
Bryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond reputeBryce Paputa has a reputation beyond repute
Re: motor clutches

That's probably not the correct term, one that limits the torque transmitted through it.

Quote:
Originally Posted by MrForbes View Post
mcmaster-carr search for torque limiting couplings

Or...if you're programmers are good, use a limit switch.
Our previous design used limit switches, but they are very close (~1-2 inches) from the axis of rotation, so the slight differences of when they are pressed could become noticeable differences in angle. We measure the angle by using an encoder that was zeroed at the lower limit switch, so these small differences apply to every shot we make. We're planning on just running the shooter into the hard stop, until the encoder reads a speed of 0, and using this as our reference point as it should always be the same. The mcmaster carr ones look good, except that weakest one slips at 25 in-lbs, which is quite a bit too much (more than the motor & gearbox can produce at stall current). We also don't really want a flexible one, and the rigid ones only go down to 72, which is almost 5 times the torque of the motor.

Last edited by Bryce Paputa : 16-03-2013 at 19:58.
 


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 23:17.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi