-Probes in PC DMIS work off of a MASTER/SLAVE relationship
-Calibrate your most accurate probe...usually your shortest/stubbiest one (I use a 4X20) doing T1A0B0 ONLY...saying YES the sphere has moved. This makes that angle of that probe your MASTER.
-Calibrate all other angles of all other probes by saying NO the sphere has NOT moved...this makes those tip(s) and their angles SLAVES to the MASTER T1A0B0 4X20
Once you do this, they will have the proper relationship to one-another and you should be good to go.
It is up to you to look at the calibration results and ensure that they are good enough for how you're trying to use the probe(s). Check back if you need further explanation on this.
For example:
You're writing a program that uses 4X20 T1A0B0, 4X20 T1A45B90, 1X30 T1A0B0...and you want them all related together.
You would:
Calibrate 4X20 T1A0B0
BY ITSELF SAYING YES, 4X20 T1A45B90 saying NO, and then 1X30 T1A0B0 saying NO
If you are splitting hairs, or producing a sustained method of measure that will support a production line for years to come, measuring with minimal probes and probe wrist rotations will result in higher reproducibility.
if you don't need sub 0.0005" repeatability, and/or you are running low product volume checks, nah. it doesn't matter whatsoever.
If you are splitting hairs, or producing a sustained method of measure that will support a production line for years to come, measuring with minimal probes and probe wrist rotations will result in higher reproducibility.
if you don't need sub 0.0005" repeatability, and/or you are running low product volume checks, nah. it doesn't matter whatsoever.
On some products with tolerances being less than 0.010mm (we are tier 1 medical) I will change probes then touch off on a feature (hole or surface) so the origin is absolute (to the probe being used) so any bias from probe to probe is eliminated. Normally I do not but there are some circumstances where it may be needed
