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FeatureScript request: Corner fillet for CNC machining

kvdmolenp
kvdmolenp Member Posts: 28 ✭✭
edited September 2024 in FeatureScript

When machining a part with a CNC mill, sharp corners cannot be milled (due to the diameter of the drill, this actually also holds for lasercutting).

The trick is to create a "deeper" radius with the same size of the drill (slightly larger), see below.

But it's a drag to draw these over and over..

Is there perhaps an existing featurescript to add this to a 3D corner, similar to a fillet? Or perhaps directly in the drawing, but I'd prefer for 3D fillets due to the maintainability of the drawing.

PS, I am aware of the SuperDerived featurescript, and using that in combination with a configurable sketch and extrusions, but that still is a lot of work.

Thanks!

Screenshot 2024-09-25 at 21.27.05.png

Comments

  • Matt_Shields
    Matt_Shields Member, Onshape Employees Posts: 984 PRO

    The Laser Joint custom feature has this feature. Maybe recycle some of that code?

  • eric_pesty
    eric_pesty Member, pcbaevp Posts: 2,865 PRO

    Have you tried the "corner overcut" FS:
    https://cad.onshape.com/documents/b99915c0b73924ca981bc57f/v/615cb6d9633a595a6bc99f8a/e/14458d1263a98640a0cf663c

  • kvdmolenp
    kvdmolenp Member Posts: 28 ✭✭

    The "corner overcut" is exactly what I was looking for, thanks!

    I didn't know the name, so thanks, als for the Laser Joint tip.