Rotary table axis

[[SH...]]

What does the voilet colour axis means, i am new to rotary table..

IMG_20220421_005043.jpg

[[Ch...]]

Shabu,

Hi. Rotary Table Pro here.. 🙂

R/T is a 4th axis, and great care must be taken for accuracy.

The violet line is the RT Axis relative to the machine axis, it appears severely skewed here...

If you are measuring a non-cylindrical part, the rotary table is considered "passive" and allows you to measure features all around the part by rotating the RT as needed. Assuming your part set up and base alignment are set up well enough, rotary movements should not have a great effect on measurement results.

Get familiar with qualifying the R/T with the calibration sphere and the Zeiss R/T Qualification program (with master probe)

Please start with reading Calypso manual Chapter 14 - Measuring with Rotary Table.

For cylindrical parts : It is recommended to measure a common axis feature on part CL at 0° + 180° to help Calypso understand precisely how the part is oriented in the chuck, etc. This can and should be used per part/program and can be set as a 'feature' inside the R/T options.

Start and practice slowly, serious collisions or errors can occur.

Tip: You should start by indicating your chuck in very well (1-3 microns runout max). However once you learn proper RT qualification on an actual part, the chuck can be running out, up to say 50 micron, and you can still get accurate results.
You can also indicate the part to ensure it is running true (for prove out purposes, etc). The R/T is designed so that you should not have to indicate each part, but it helps if you indicate the chuck in on the first part, etc.

If you need further help PM me, and I can send a standard work document that explains a little deeper.

Good luck.

[[SH...]]

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Thanks you for the detailed explanation...