Hello all, could you please verify that I am calibrating my tips properly! I recently calibrated my machine and my results seem offset in one axis. (Calibration sphere comes off the table after every calibration)
I start by selecting A0B0 only ( Say Yes, Sphere has moved) Calibrate it by itself
Then I Select all tips (Including A0B0) and say No, Sphere has not moved)
The second time I calibrate my tip set should I be including A0B0? Also, Do you guys have a separate probe file called something like "Master probe" with just A0B0? or do you calibrate it within the tip set.
I haven't been on a machine in many years and I'm trying to remember the correct way to do this.
Notice that when you say 'Yes sphere has moved', you get an extra line above your results which shows the location of the calibration sphere. Notice also that you X (0), Y(0) and Z(280) are identical for both the THEO and the MEAS values.
This is what you want to see in the calibration results of your master probe-tip.
All other probe-tip angles you would expect there to be some difference between MEAS and THEO.
I've been trying to understand the purpose of the master probe. Being short with a large ball, does it locate the sphere with the best precision possible?
I believe the purpose of the master is not only to locate the sphere but to also have the least defection as it probes. So a large tip with a short stylus is ideal for touch trigger. I like to use a 5x10 or 4x10 for touch trigger CMMs. I sometimes use a 5x20 for analog heads since that is the probe used for the lower matrix. Not every situation is the same so the best thing to do is to designate a probe as the master probe and only click yes for that probe/tip. All other probes and tip angles need to be answered no.
Still having issues over here... You guys know why i m only getting bad deviations in the 45 and 135 angles ? Is this because my head is not orientated right physically to the machine ?
Well I disassembled everything, cleaned it, put it back together. Remade my probe file. I keep randomly getting a PHC9 datum error, could this be causing this issue ? Is it possible the PH9 head is causing issues because its starting to fail ?