hexagon logo
Register Sign in
  • Replies 27 replies
  • Subscribers 222 subscribers
  • Views 309 views
  • Users 0 members are here
Options
Related

Master Probe

Scott Brown
Good Afternoon

I have read a number of posts regarding probe calibration and using a Master probe to relate multiple probes. I have a few questions that I did not find the answers in the posts.
Question #1 - If you are using the Master probe for measurement does it affect the relationship of the other probes if you re-calibrate A0/B0 of the Master Probe after answering "N0" to the calibration sphere move. For example - Start of shift the Master probe is calibrated at A0 / B0 and you answer "Yes" the tooling sphere has moved. Now you open a program that uses the master probe for measurement. You want to perform a calibration on the angles that are used in the program. Perform a Marked Used which includes A0/B0. You answer "No" the tool has not moved and perform calibration. Is the relationship of the other probes and angles lost???

Question #2 - Is it necessary to calibrate Master Probe every time the machine is homed??

PC-DMIS 2014.1

Thanks for your help
Scott
Parents
  • There are a lot of posts about "Master probe"...
    Some of us have a real "master probe", which is used only to do a "zero" (like AndersI said) with resetting to theo the offsets and repositioning the sphere (answer "yes")
    Another way to consider the "Master probe" is only to say "yes, the sphere had moved", then all the offsets are calculating from this tip. In this case, recalibrating this tip and answering "no" will only give an offset to this tip from its previous calibration.
    Re-calibrate after a homing takes the same way. If the zero on the scale is not repeatable, you can say that the sphere physically moved compared to the scale. If you re-calibrate only the tip answering "No", you just add to the offsets the "zero defects", so the measured part should be measured in a reference close to the reference before homing (because the zero offset has the same effect on the part and on the shere Slight smile ). So it has no effect on others calibrated tips...

    About both points, it's only my opinion... But I constructed it with a lot of tests on ring gages, gauge blocks and different parts...
Reply
  • There are a lot of posts about "Master probe"...
    Some of us have a real "master probe", which is used only to do a "zero" (like AndersI said) with resetting to theo the offsets and repositioning the sphere (answer "yes")
    Another way to consider the "Master probe" is only to say "yes, the sphere had moved", then all the offsets are calculating from this tip. In this case, recalibrating this tip and answering "no" will only give an offset to this tip from its previous calibration.
    Re-calibrate after a homing takes the same way. If the zero on the scale is not repeatable, you can say that the sphere physically moved compared to the scale. If you re-calibrate only the tip answering "No", you just add to the offsets the "zero defects", so the measured part should be measured in a reference close to the reference before homing (because the zero offset has the same effect on the part and on the shere Slight smile ). So it has no effect on others calibrated tips...

    About both points, it's only my opinion... But I constructed it with a lot of tests on ring gages, gauge blocks and different parts...
Children
No Data
© 2024 Hexagon AB and/or its subsidiaries. Privacy Policy | Cloud Services Agreement