If I do a DCC alignment to the part's datums in A90B180, then rotate the tip to A90B0 to use DCC mode to measure something else, do I need to re do the DCC alignment from scratch? Assume calibration is good on all tips and tip angles. I have heard you need to re-measure everything in the alignment, and I have heard you do not. It seems like a huge waste of time to me. It seems like our CMM program cycle times are all double what they need to be. Using PC-DMIS 2023 on a Global S Chrome.
Here's an example of typical error produced by a change to "B" angles without any fresh autocalibrate command after each angle change.
Tips were calibrated at beginning of program only.
This is on a ring gauge, phantom form error stays square to machine axis, regardless of ring's rotation.
Only ways to avoid this is to A) avoid articulating wrists, B) re-doing alignment after tip rotation, as JasonD asked, or C) re-qualifying after each and every wrist engagement.
Here's an example of typical error produced by a change to "B" angles without any fresh autocalibrate command after each angle change.
Tips were calibrated at beginning of program only.
This is on a ring gauge, phantom form error stays square to machine axis, regardless of ring's rotation.
Only ways to avoid this is to A) avoid articulating wrists, B) re-doing alignment after tip rotation, as JasonD asked, or C) re-qualifying after each and every wrist engagement.
