# Assembly with DIMENSION & TOLERANCE

**URL:** <https://discourse.shapr3d.com/t/assembly-with-dimension-tolerance/33881>\
**Category:** Modeling Questions\
**Created:** [September 24, 2024, 8:53pm UTC](https://discourse.shapr3d.com/t/assembly-with-dimension-tolerance/33881 "2024-09-24T20:53:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![tulsultant](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@tulsultant](https://discourse.shapr3d.com/u/tulsultant)\
**Post date:** [September 24, 2024, 8:53pm UTC](https://discourse.shapr3d.com/t/assembly-with-dimension-tolerance/33881/1 "2024-09-24T20:53:46Z")

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The Question is below.  
Topic: Another assembly related topic involving DIMENSION & TOLERANCE.  
Background:  
Let’s say we have a simple box cube with a nominal dimension callout of 1.000 inch with +/- 0.125 inch tolerance callout on all sides.

These tolerances allow Manufacturing to have some latitude in finished dimensions that will be acceptable for Production. So, worse case (+) tolerance can be 1.125in and worse case (-) tolerance can be 0.875in on any given side(s).

If we draw the model to the exact nominal (ideal) dimensional callout, it would not be the best representation of a worse case fit when it is joined to or joined with another assembly.

In the past, we made identical individual models, each with its nominal (ideal), worse case (+), and worse case (-) dimensions. Substituting the three models for fitment checks is awkward and time consuming at best.

Question:  
Is there a way to combine all three dimensions (nominal and +/- tolerances) into a common model in such a way that they can be toggled on command to represent each of the three dimensions for fitment checks?

Thank you, cliff