I have been doing a lot of reading and have not been able to find much in the way of software that does 2D and 3D tolerance stackups.

1D tolerance stackups are reasonable straight forward and a good excel spreadsheet seems to cover these off.

I'm curious to see what others are using.

So far Cetol by Sigmetrix seems to be the one to look at although it is somewhat cost prohibitive.

The other part of this question is are designers actually doing 2D and 3D stackup analysis on assemblies?

Although I have found all the info on the math behind these methods I don't seem to find a lot about people actually doing them.

If this is the case how is everyone verify the assembly with respect to the design tolerances?

If you have some feedback on the topic I would be interested.

AM