Hey guys. We are having an issue with our 4.5.4 where it wont calibrate the 1mm probe. So far I have changed the Tp-20 module, the 1mm probe it's self and even created a new probe profile. Have reset all tips and recalibrated the master probe and the 1.5MM probe just fine. Im out of ideas as to what the issue could be.
Please Help
I had an issue like this, and it turned out to be a damaged qualification artifact. Someone had damaged/dropped it and the ceramic ball broke free from the pilar The ball was just loose enough to allow for a tiny amount of movement when being qualified. Could be something else causing your issue but it is something that can be easily overlooked.
What do you mean it wont calibrate? is the StdDev failing? This is common on these probes due to the amount of flex in the shaft when taking polar hits or hits perpendicular to the surface of the probe shank.
Typically on calibrations I change my start and end angles so that PC-DMIS does not take any hits on the pole and I also adjust all of my part measurements so that I don't take perpendicular points either, there just isn't enough rigidity on a 1x22 probe to get reliable information.
As a side not, StdDev is more a representation of form and not an indicator that you calibrated successfully. Some machines such as horizontal arms that use linear or roller bearings can see StdDev as high as .035mm.
I do adjust the start and end angles but not to the point where points arent being taken at the pole. I usually do 10 and 80.
Also the StdDev is what I am referring to. We have never had an issue before with a 1x22mm calibrating. We use a touch speed of 3.
.020mm StdDev is pretty common for a 1mm tip, I've seen as high as .035mm especially on the shop floor style CMM. I would perform some measurements with the probe to see exactly how far things are out. I can't stress enough that StdDev doesn't mean you failed your calibration though. The limit set in PC-DMIS by default is not tied to a pass/fail of a calibration. This is a user defined value and may need to be adjusted depending on your machine/probe configuration.