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QUICK TIP: How to machine 3D chamfers

Have you ever wondered how to manufacture a chamfer along a 3D edge? Creating the geometry while designing is easy, but machining it is a little trickier. The trick is to use a Scallop operation and a ball endmill, surprising as that may be! You can use 2D chamfer to create intelligent toolpaths, but it doesn’t apply to 3D chamfers. Trace may seem like a tempting option, but often it can result in significant gouges in your part.

 

In today’s QUICK TIP, we’ll go through the steps to generate a 3D chamfer, so next time one pops up, you can actually machine it!

 

 

Follow the steps outlined in this QUICK TIP, and you’ll be cutting 3D chamfers in no time.

 

  1. Create a Scallop operation.
  2. Select a ball endmill as the tool.
  3. In the Passes tab, select the outside edges of the chamfer as the Machining Boundary and set the Additional Offset to -0.0003 inches.
  4. Enable Contact Point Boundary, set the Boundary Overlap to 0 inches.
  5. In the Passes tab, set the Tolerance to 0.0001 inches.
  6. Set the Stepover to 3 times the width of the chamfer.
  7. Click OK to generate the toolpath!

 

 

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