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probes crash into calibration sphere

JFournier
I want to avoid asking things already answered here in the forum, and there are several cal sphere posts, but none answer my issue so far.

After qualifying my Master probe, the subsequent probes are crashing into the sphere as if they think its lower in the Z-axis.

I'm using TP20 probes and these same probes worked previously

My process looks like this:

1. Master probe (3x20mm on std module) using 25 hits, DCC+DCC, reset to theo, selecting "YES" cal sphere moved and taking first manual point. Results are good at .0000"-.0002"

2a. 1x50mm probe at A0B0, using 13 hits, DCC+DCC, selecting "NO" cal sphere did not move
2b. Sometimes I use "user defined", sometimes I use "default mode", doesn't seem to work regardless

3. Proceeds to crash straight down into sphere.

Anything look obviously wrong in this process? Pics show both probe setups and options. Probes were measured for length and checked for tightness.

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  • you should be on 25 hits, 4 levels, 0 to 90 on all your probes, not just the master probe, but that's not your problem, just an observation.

    The builds equate, so as long as that is what is physically present, you are ok.

    As suggested, a MAN + DCC should solve the problem, this can get harsh if you have a lot of angles.

    On my new machines, I had to increase the approach/retract to .300" rather than .100" or else most angles hit. (My only new contribution to this thread)
    It didn't help with qualifying the positions themselves, but do not check the box for collision avoidance during qualification (if that is present). It smashes the probe into the sphere for me when it is done qualifying in the version I use, anyway.

    I would also, as stated above, clear the probe file at a minimum (Reset Tips). If there is any kind of problem after that, delete the probe file off the hard drive and rebuild it from scratch.

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  • you should be on 25 hits, 4 levels, 0 to 90 on all your probes, not just the master probe, but that's not your problem, just an observation.

    The builds equate, so as long as that is what is physically present, you are ok.

    As suggested, a MAN + DCC should solve the problem, this can get harsh if you have a lot of angles.

    On my new machines, I had to increase the approach/retract to .300" rather than .100" or else most angles hit. (My only new contribution to this thread)
    It didn't help with qualifying the positions themselves, but do not check the box for collision avoidance during qualification (if that is present). It smashes the probe into the sphere for me when it is done qualifying in the version I use, anyway.

    I would also, as stated above, clear the probe file at a minimum (Reset Tips). If there is any kind of problem after that, delete the probe file off the hard drive and rebuild it from scratch.

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