this post was submitted on 19 Oct 2023
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FreeCAD

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FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters.

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How to polar pattern a revolved surface? (sh.itjust.works)
submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]
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Hi everyone,

I have some prior experience with Solidworks, but I wanted to try out a FOSS alternative. I've been messing around in FreeCAD for a couple hours and I have the following question:

How do I polar pattern a revolved surface?

I want to accomplish something similar to what is described in this video (12:14 to 13:44).

My ideal workflow is as follows:

  1. Create sketch (e.g. square)
  2. Pad sketch to create body (e.g. cube)
  3. Create new sketch (e.g. line)
  4. Revolve sketch to create surface (e.g. disc)
  5. Polar pattern the surface to create multiple (e.g. 4) discs
  6. Slice apart cube by 4 discs to yield 9 separate bodies

I'm stuck on step 5. Is this possible in FreeCAD? If not, are there any recommended workarounds to achieve the same result?

Thanks in advance!

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[–] [email protected] 2 points 8 months ago

I think you'd be better off using the Boolean XOR tool from the same Split submenu (if you approach it from the Part menubar in the Part workbench), on your cube and your array, instead of the Slice apart tool.

Then on the resultant XOR object use the Explode compound tool from the Compound submenu.

You'll get a folder with all your sliced parts in it.