On Monday 15 February 2016 18:44:00 Bertho Stultiens wrote: > Hi, > > I'm looking for an on-the-cheap way to do reasonable homing. Usual > switches for the purpose cost a lot. The machine only has a > repeatability of 0.02mm, so it may just be a waste to use too accurate > (expensive) switches. > > Has anyone numbers on the repeatability of "normal" micro-switches? > > Micro-switches are (relatively) cheap and mostly not too shabby, but I > have a not seen any hard data on repeatability (other than datasheets > saying that they are made for repeatability).
I am using some micro-mini roller lever junk I got for 6 bucks a bag of 10 from ebay. Repeatability according to my dials is well within .001" even with crap switches. Its a "dry' circuit, so as long as the contacts are clean, there's very little other wear. MMMV after a long time, but its not beem noticable in 6 months now. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
