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Volume milling, how to set entry angle or lead-in

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Volume milling, how to set entry angle or lead-in

I have a simple rectangular volume, an island of material, that is to be completely machined away.

I want to do it by doing a spiral path, starting on the outside, deep DOC, small stepover.

That is working fine, however I can't get it to 'lead-in' or ramp from a top-view.  Setting CUT_ENTRY_EXT to RAMP ramps during the initial plunge, which is not what I'm going for.  I want it to fully plunge in Z, then ramp into the material in X/Y (top) plane.

In second image below, the actual path it is generating is the red and yellow arrows.  yellow arrow is how cutter is moving straight into the material (perpendicular to wall).  I want a 'ramp/lead' like the blue dotted line.  yellow circle is the initial plunge outside the volume.

I've tried all the options in CUT_ENTRY_EXT to no avail...

Any ideas?  Thank you for looking

Creo3.0 M040

vol milling 2.jpg

vol milling 3.jpg

vol milling 1.jpg

1 REPLY 1
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Re: Volume milling, how to set entry angle or lead-in

Hi Corry, I don't think this is possible. Ramp works only on Z as far as I know.

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