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Split along parting surface not working

Question asked by Randy Pérez on Apr 8, 2019
Latest reply on Apr 11, 2019 by Randy Pérez


I am having a problem splitting a part in half using a parting surface in SolidWorks.


The goal is to split a hollow solid object into two distinct pieces, an upper and lower piece. The cut itself is rather complex, a pattern that runs around the outer surface of the solid object.


To illustrate I created a very simple demonstration.

  1. I created a hollow box via extrusion of a 2D sketch.
  2. I sketched a 2D pattern on the four outer walls of the box and applied "Split Line" to them.
  3. I used the "Parting Surface" tool and selected all the edges created by the previous split lines.part0.png
  4. I finally attempt the "Split" feature using the generated parting surface but it fails to split the object in two.



I have read that the "Parting surface" feature is practically useless and that people opt for alternative methods. Unfortunately these alternate methods I have read about don't seem to apply well to this particular complex cut. I've tried making a 3D sketch to act as a manual parting line, but I can't seem to figure out how to make the sketch compatible with the Split feature.


Attached is my project file. Any help would be appreciated! Thank you.