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CS_1042815810-Marble
10-Marble
December 8, 2022
Solved

3D Geometry Compare

  • December 8, 2022
  • 2 replies
  • 2537 views

Is there a good way to compare two assemblies' geometry?  

I have an assembly that we sent to an outside firm for modifications.  Those modifications were sent back to us as a step file.  The BOM is different and difficult to compare, but the geometries look nearly identical.  Is there a good way to compare model Geometry?

Ideally it would be a transparent model with removed geometry in red (solid) and added geometry in green (solid).  That way I can quickly identify differences in the models.

 

Best answer by Patriot_1776

You could create a temp assembly with a skeleton part in which you inserted the STEP file of the assembly, and then insert the real assembly into the temp assembly and manually compare.  I'm not aware of an "automatic" way of doing this comparison, but it wouldn't surprise me if there was one.

 

Best of luck!

2 replies

Patriot_1776
Patriot_177622-Sapphire IIAnswer
22-Sapphire II
December 9, 2022

You could create a temp assembly with a skeleton part in which you inserted the STEP file of the assembly, and then insert the real assembly into the temp assembly and manually compare.  I'm not aware of an "automatic" way of doing this comparison, but it wouldn't surprise me if there was one.

 

Best of luck!

    C
    CS_1042815810-MarbleAuthor
    10-Marble
    January 31, 2023

    OK so you have them overlap. Afterwards is there a way to see the intersecting geometry?  Would I use global interference?

    M
    msmith14-Alexandrite
    14-Alexandrite
    February 6, 2023

    There is an automatic tool for visually comparing changes between two versions of the same part. See help center document About Part Comparison. You *might* be able to save the assemblies as IGES files, import as parts, and perform the comparison. The visual comparison works exactly like you described:

     

    msmith_0-1675699942533.png

     

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