View Single Post
  #2   Report Post  
Posted to rec.crafts.metalworking
Jim Wilkins[_2_] Jim Wilkins[_2_] is offline
external usenet poster
 
Posts: 5,888
Default I need some very responsive and easy to operate DMDT momentary switches

"Ignoramus18425" wrote in
message ...
My son has a "olympiad" event called "Robocross". He has to build a
robot that he would control, that drives around, picks up objects,
and
delivers them into a jar.

To that end, I designed a system where the robot is on tracks and
drives using two DPDT momentary switches, turning like a tracked
tank.

It works, but I do not like the switches. One, they have a cheap
****
plastic ring/nut to hold them to the enclosure, and sometimes that
ring slips on the threads.

Two, these switches require significant force to switch (and that is
what affects that ring) and they are just not ergonomic. I want to
find switches that are more feather-light and easy to operate with
minimal force.

Has to be:

* DPDT
* Momentary
* Have quick-connect terminals

Any suggestions?

i


If you find a switch that's satisfactory except for its operating
force, take it apart and shorten the spring. Pry the retaining prongs
out with a small screwdriver and let it pop open over a dishpan.
See if this helps. Youtube downloads so slowly over my dialup that I
fixed breakfast in its first 12 seconds.
http://www.youtube.com/watch?v=vcKGbWxLL7s

Or you could mount two pushbuttons between a lever, either a T lever
on a flat panel or a straight lever hinged to the bottom of a U with
the buttons in the sides.
jsw