David--
The tip on mine will pop over if you press it, but that just seems to be protection from overtravel. In use, the Tormach control software responds at the first contact, and the ball doesn't move at all. It's still early days, but so far this probe appears to be accurate and repeatable.
By the way, I ordered my digital edge finder from 800watt on ebay (Yeah, I know his reputation, but I just held my breath and took a chance. Had no problems at all). The finder has a 3/4" shank, so it's big enough to hold the required electronics and fits the Tormach TTS collet. |