Automotive Level2 vs. Level3 Measurement Points

[ghcutts01]

Can anyone clarify or define the difference between Level2 and Level3 measurement points?

[Matthew D. Hoedeman]

Level 3 are used for SPC, Level 2 are 'full check'. Level 4 are usually data collector bushings on the fixture for 'at the press' data collection.

Level 2 includes all Level 3 and Level 4 points
Level 3 includes all Level 4 points
Level 4 points are all alone.

[jleond]

Non mating surfaces, clearance or drain holes, basically all those features that are not critical for dimensional integrity of the part.

[Matthew D. Hoedeman]

Non mating surfaces, clearance or drain holes, basically all those features that are not critical for dimensional integrity of the part.

not correct. This is a FoMoCo thing. Level 2 is basically a FAI, Level 3 is what must pass SPC, Level 4 is what is collected for production at the press.