Re: Home Switches

In a message dated 12/23/99 10:32:13 PM Hawaiian Standard Time,
scalione@... writes:

<< From: William Scalione <scalione@...>

Anyone know what the best type of switch to use for a home switch?
I am using mechanical "Cherry" microswitches but they don't always
actuate at the exact same position, which makes them kind of useless.

But my home switches need to be right on

Better quality mechanical switches?

Thanks
Bill >>

Bill,
Not the best perhaps but a usable switch for me has turned out to be
Honeywell/ Microswitch industrial limit switches. WW Grainger has a few
equivalent such as model # 2G436. These all have the same physical
dimensions. Omron, Square D and others have a EQ part number. My Honeywell
units test to about +-.0003 or .0004". I can easily get consistant actuation
inside of .001 inch. This was much better than I had figured was possible. No
wonder they cost so much!! Try to get a unit that has no linkage as this
causes more lash. Also set up the mount so there is a bump stop to protect
the switch in case of a wiring or programming error. Get the ones with a
rubber boot as metal fines will work into everything.
Happy Holidays all!
Peter