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Tuesday, September 25, 2012

"Part" Mirror vs "Part Design" Mirror

Some tools (Mirror, Chamfer, Fillet) seem duplicated in Part and Part Design Workbenches. Despite names, they work in slightly different ways. Part is designed for low-level operations on solids, Part Design is for higher level operations on features.

Part workbench Mirror

Start a new sketch. Draw a square or rectangle on XY plane and create a pad. The rectangle should be symmetric to axes. 


Make a pocket on a side face.


Open Part workbench, use the mirror (Mirroring a selected shape) tool and select a plane (YZ or XZ) in Tasks tab.


Confirm operation, now you should see second, mirrored solid. You can hide Pocket or Pocket (Mirror #1) with [Space]. 

Part Design workbench Mirror

Delete or hide Pocket (Mirror #1) and back to Part Design workbench. Select Pocket and use the mirror (Create a mirrored feature) tool. Set the plane to YZ (or XZ). As you can see, Part Design mirror works different. The pocket feature is mirrored instead the solid object.


FreeCAD:
Version: 0.13.1489 (Git)
Branch: master
Hash: a20f4dddffbe590434041373ee125b367ee60e31


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