@oliof well for starters "me not making it work" does not in any stretch of imagination means "no one can make it work" ... but I have my reservations about repeatability and precision as for e.g. in theory piezo disks should be the perfect endstops and should be way more precise and more repeatable than anything else out there but I know ppl that are finally happy with their printers after moving away from piezo... same here, I don't think it's solving "a problem", there's enough great sensors out there today, adding a new way to detect boundaries is not bad thing but hardly something that we need. with all the fancy stuff we did in 12 years of reprap project I don't see a significant increase of precision over simple, cheap, microswitch
