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What does this true position mean?

I don't know what this true position on the hole is constraining. Bolt circle diameter or orientation of the hole maybe? Trying to determine if I need to measure the hole as a cylinder. Appreciate the help.

Parents
  • I measured three of the holes as cylinders (didn't do 6 because I dont have the necessary fixtures to orient my part in a way to get all 6) and these are the results. What does the 'TP' mean? If im reading this correctly the hole positions (x,y) are a little out and the TP is way out. The PPAP report Im doing for this part I am only reporting one number for this gd&t callout, so which would I use? Thanks

Reply
  • I measured three of the holes as cylinders (didn't do 6 because I dont have the necessary fixtures to orient my part in a way to get all 6) and these are the results. What does the 'TP' mean? If im reading this correctly the hole positions (x,y) are a little out and the TP is way out. The PPAP report Im doing for this part I am only reporting one number for this gd&t callout, so which would I use? Thanks

Children
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