View Single Post
  #32   Spotlight this post!  
Unread 18-03-2011, 22:29
boomergeek's Avatar
boomergeek boomergeek is offline
Registered User
AKA: Mr. D (Dick DiPasquale)
FRC #0241 (Pinkerton Robotics)
Team Role: Mentor
 
Join Date: Feb 2009
Rookie Year: 2009
Location: Derry, NH
Posts: 191
boomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant futureboomergeek has a brilliant future
Re: Minibot switches...

Quote:
Originally Posted by Mike Betts View Post
By their nature, limit switches are usually momentary devices. A better choice would be a light switch...

JMHO,

Mike
After messing with heavy light switches, Team 241 decided on limit switches.

Creating a simple high friction hinge over the top of a KOP 3-way limit switch is a lightweight and effective way to short the motors when you reach the top- the friction in the hinge keeps the limit switch from turning back on.
A high friction hinge can be as simple as a small piece of angled aluminum with a machine screw that is double nutted to adjust compression/friction)
The KOP limit switch is very easy to mount to a vertical member of your minibot. Adding a travel stop on the hinge to protect the switch is also advisable.

If you have a super fast minibot, the hinge allows longer contact with the tower plate while in excess of 4N.

Last edited by boomergeek : 19-03-2011 at 07:57.