Better Quality Limit Switches

I have a homebuilt CNC router I've been using for about 3 years now (I think). I got some of the cheapie uxcell plunger limit switches off of Amazon and they work...ok. It would be nice to have a little better repeatability though. Haven't really tested, but I'm guessing these vary by 10-20 thou when you home the machine. Maybe little more, maybe little less.

Anyway, when I look I seem to find only 2 types: junkie ones like mine or super expensive ones that repeat to 5-10 microns. Anybody found some affordable ones that might let me repeat home to around a thou?

Thanks,
Wally

OK, I *did* in fact do a search before I posted, but didn't find anything. Then the similar threads list led me to some past threads. Based on those, the AAP2T35Z11 seems like a good candidate. Anybody used them? What kind of repeatability are you getting?

Thanks again,
Wally

Hall Effect switches ftw! Easy DIY project and cheap too.

What about the inductive type you find on 3dprinters for bed leveling. Super cheap, repeatable accuracy, and reliable.

This thread has everything you need to make your own, very accurate, Hall Effect limit/home switches: https://www.cnczone.com/forums/open-...cnc-forum.html

Hi,
I've been using these switches for years for limit and home switches. I get 0.02mm repeatability when used as home switches.

https://nz.element14.com/omron-indus...a/dp/150034001

Craig

Balluff is a great deal to have very precise limit switches.
Are used also in professional centers.

https://www.balluff.com/local/us/productfinder/#/ca/A0001/cg/G0113/product/F01332/variant/PV146833