I’m sorry to say I’m not playing with the new firmware, I guess the timing is just coincidental. The feature I’m using has been around since at least 2017 and has been in the V1 firmware waiting to be enabled. Now I am curious to go look at the newer features because I was disappointed I couldn’t even probe in negative X or Y direction. I didn’t even look to see if I could find holes. (Mainly I am just wanting to avoid jogging to my workpiece, which is annoying and sloppy.)
I also haven’t tried calibrating or measuring the offset. In theory an extremely small movement at the contacts should break contact and trigger, and I guess it would come down to the stiffness of the workpiece and the stiffness of the probe and the strength of the spring. Probing foam for example you would probably mash the foam a lot before triggering, whereas foil tape requires no force to trigger.
The way the spring presses on the probe, the force to break contact in Z is significantly higher than the force to break contact in X or Y, so even though it barely deflects in X and Y, it might not reflect the accuracy in Z. I will try later tonight, probing Z on wood and probing Z on glass on wood and see if the difference is equal to the thickness of the glass. I’m open to suggestions on other ways to determine the accuracy, that’s just the first thing I thought of.
I’ll also use a scale to try to measure the force to break contact. I can trigger ‘easily’ with my finger but my fingers are uncalibrated so I have no idea if it’s 1 oz or 6 oz or even in that range.