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tie features to existing features

greetings,

i've got .064" tip grooves that were machined before the tips were straightened for true position. of course i'm having troubles with the parts running on the cmm. the plane circle path of the slots making most of the trouble...

i've tried to tie the groove circle plane target locations (x,y,z) and rotations (i,j,k) to previously probed features. PLN_512 (used for the Y location) is the back side of the tip (right side in the pic) and CYL_181 (used for the X and Z) is the adjacent cylinder (just to the left of PLN_512).

it doesnt seem to be working as well as i'd hoped. the probe still occasionally contacts the side of the slots when probing the circle planes for the slot both when approaching the part and when moving from one touch point to the next indicating the Y axis math is not being done and/or the circle path is not canted with the same IJK as PLN_512.

am i missing something?



Parents

  • How large of probe you using ?​ I see it now. .5mm. with .029 prehit. you have about .016 clearance on a perfect part ?


    I like how extra alignments be complicating things but 4 or 5 other steps in a feature is cleaner ? So many ways to do this. I might consider doing points and then copy paste with pattern around the part ? That would depend of probe and angles being used I guess ?
Reply

  • How large of probe you using ?​ I see it now. .5mm. with .029 prehit. you have about .016 clearance on a perfect part ?


    I like how extra alignments be complicating things but 4 or 5 other steps in a feature is cleaner ? So many ways to do this. I might consider doing points and then copy paste with pattern around the part ? That would depend of probe and angles being used I guess ?
Children