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Need help with a tool and or tool path

[ Edited ]

I’m trying to machine the .375 c/r on the inside of this part.  I believe it should be milled normal to the angle face.  Im unable to create a tool the cut the radius and also clear the small internal C/R and wall of the pocket.


We are looking to do this with the part loaded in a 3 axis mill and the angle face normal to the z axis. Due to cycle time, I do not want to simply ball track it.


Preferred options would be:


  1. Radius cutter and dimple 2d path
  2. Multi axis on another mill with a form cutterBLOCK_RADIUS.JPG
Damian Forsythe
Impact Manufacturing Group

Re: Need help with a tool and or tool path

[ Edited ]

Geometricaly, it may not be possible to cut the corner round as you want, depending on how it is modeled, but you can get close with planar_profile with a corner rounding tool. You will need to adjust the Z depth offset and part stock to get the tool in the right position, since the corner round is not tangent.

For the tool, retrieve UGTI0251_004 from the library, which is a 3/8 corner rounding tool. If you need a smaller tip, shorten the LL of segment 1 to .0625 to make it 1/8 dia. If the tool tip gouges the tall wall inside the pocket, grind off the end of the actual

tool to clear.


Mark Rief
Retired Siemens

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