I have 2 std force modules that have the stylus mounting thread very slightly off center, you can see this by rolling across the Cmm surface table. If a calibration routine is run, will PCDMIS compensate for this?
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I have 2 std force modules that have the stylus mounting thread very slightly off center, you can see this by rolling across the Cmm surface table. If a calibration routine is run, will PCDMIS compensate for this?
Calibrating a probe will tell the machine where the probe's spherical centroid is and will work great even if bent a bit... Until you try to measure with the probe deep into a part.
The machine can't discern or compensate for when you try to measure something deep into a bore, and the probe's shank/shaft/extension is contacting the part before the sphere does (aka a "Shank hit"). This will produce terrible dimensional results in-error.
I've dealt with this for TP200's. Some new, directly out of the box from Renishaw had >1.5° projected axial error. It doesn't sound like much, but it's enough to shank-hit a 60mm deep 3mm sphere with a 2mm diameter shank.
Calibrating a probe will tell the machine where the probe's spherical centroid is and will work great even if bent a bit... Until you try to measure with the probe deep into a part.
The machine can't discern or compensate for when you try to measure something deep into a bore, and the probe's shank/shaft/extension is contacting the part before the sphere does (aka a "Shank hit"). This will produce terrible dimensional results in-error.
I've dealt with this for TP200's. Some new, directly out of the box from Renishaw had >1.5° projected axial error. It doesn't sound like much, but it's enough to shank-hit a 60mm deep 3mm sphere with a 2mm diameter shank.
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