Autodesk Fusion ! Compute All!

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TLDR: always run Modify->Compute All in Fusion before exporting a STEP or STL.

From time to time I have used Modify->Compute All in Fusion to update the model if something is obviously not applied properly. But normally I don’t use Compute All because things generally stay the same.

I had a feature related to adding a tolerance to fit a 12 small identical parts into a large part. It printed fine in previous prints when I printed a small subsection of the part for testing and I didn’t change anything about that feature since, I just changed some other unrelated features. Then yesterday I printed the full part, it was a 6 hour print and when I tried to insert the small parts they were too tight and wouldn’t fit.

I measured the slot on Orca and in Fusion and it was the same, but when I measured the small part, there was no tolerance. I confirmed that the feature wasn’t suppressed and that the timeline wasn’t set in history before the feature. I then ran a Compute All and it corrected the part.

So the lesson I learned is to always run Compute All, at least for a larger time and filament wasting print.

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Thanks for this! I ran into a similar issue recently and I think this would have saved me hours of rework!

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I am working on something, and I was remembering to use Compute All, but one time forgot and messed up a print because of some artifacts that were not supposed to be there.

So after that error I was extra vigilant to make sure I do Compute All before every export. I think I did it every time, but I must have either forgotten to do it after a small tweak (on an unrelated section of the part), or maybe the Compute All didn’t quite process properly. So I put my 7 hour print to go and ended up with the same defect.

I opened up the file in Fusion and saw the defect, ran Compute All and it went away. Really annoying.