Homemade Renishaw style touch probe.

[tonyfoale]

Great addition to your measuring equipment and a very neat job, I was never quite sure what was inside those touch probes although I have used them in the past on CMMs. I am sure you will be using yours a lot.
BTW your crankcases are looking fantastic.
Regards
Alan

Alan,

Many thanks.
I put a link on my Facebook about it and it caught the eye of a Renishaw engineer. He has given it a seal of approval, as far as can be determined by words and photos. He confirmed that my effort is similar to their early continuity probes, nowadays they have different technologies including strain gauge detection of touch. He offered the opinion that mine should be good for around 5 microns repeatability. I know that it is better than 10.
You can see his comments if you scroll down to the fifth post on Tony's FB . You may need to click on "See more comments"