Can i get Advice for Perfect Calibration ?

[[An...]]

Hello everybody,
First of all, I just started learning about the Zeiss Contura CMM device in our factory.

While calibrating the device, I first attach and calibrate the master probe and then introduce the 3mm diameter porobe. However, when someone who is adept at using the device comes to measure their own parts, the CMM has no calibrations. He stated that only 90/90 0/0 is calibrated, so he cannot measure his own parts. When I asked him, he said that he calibrated the RDS over data, and that there was a calibration phase at 90 degrees, 45 degrees, 30 degrees, and then at 2.5mm degrees.

Can someone who has knowledge about the calibration method, its construction and benefits enlighten me?
This is a problem that has been bothering me for two days. Is what I measured in this calibration wrong?

Ps. 'I got Ø3 Probe '

Best Regards...

[[Jo...]]

If I understand what you're asking correctly, I gather that your Contura has only had probes calibrated in the "down" position? Correct me if I am wrong.

If there are styli with different rotations, they need to be calibrated with the reference sphere. You would want to use the Master Probe to locate the sphere, and then all the rotations on other styli from there should be calibrated from that position, with the correct rotation angles at the correct axes. I'm a fan of using the reference sphere at the "straight up" (Tilt 180° Rotation 0°) position... this should make calibrating all rotations faster and easier unless you need to probe underneath a part using a T or L configured stylus system, where you need to tilt the reference sphere to get underneath it from Z-.

[[Ün...]]

Anıl merhaba,

Sorunun tam anlaşılmadı, Dm den Türkçe ulaşır mısın 🙂

[[An...]]

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Thanks for answer. You understand correctly. For now i just got Ø3 ruby sphere stylus and master prob. When i calibrating i just touch up top of referance sphere and CMM took care of the rest.

A customer who has been in this business for years said that this calibration is not enough, it needs to be calibrated from almost every angle. He also used a sentence like "I do 90 degrees, then 45 degrees and then 30 degrees calibrations".

This person you mentioned "I'm a fan of using the reference globe in the "straight up" (Tilt 180° Rotation 0°) position.''
Is he talking about the part? So to calibrate every rotation?
If what the customer said is as you mentioned, could you explain in a little more detail? I would like to apply.

[[Ri...]]

If you are using an RDSCAA head then Qualification will articulate thru 12 predefined rotations.
This allows for upwards of 28,000 articulations (Cant recall the exact number).