Separate engage and retract speeds (renewed)

Feature Request Carbide Create
1

(oops, I placed this in CM rather than CC category)

Continuing the discussion from Separate engage and retract ipm seeds (new title):

I will renew this request. Plunge speed, you are cutting material. Good and slow, yes. Especially slow because CC doesn’t ramp into a cut.

But retract? Since it is vertically upwards, the cutter by definition is not cutting. Certainly retract speed equaling cutting speed is safe, if not G0 speed.

I am using CC821 and CM649. I was expecting to retract (at a decent rate) to stock height and then G0 up to clearance height (like I used to get in MeshCAM) but it was plunge rate all the way up to my clearance height of 1.00" (to clear clamps). I had plunge set at 7ipm because I was using a .025" cutter in stainless steel so the retract took longer than the entire cut… :open_mouth:

Thanks.

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Looking at some assorted G-code, looks like the engraving path does a rapid (G0) retract.
all the others I’ve looked at so far seem to not change the feedrate on retracts, so would be using the cut feedrate, not plunge, followed by the rapid XY.

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Thanks, @Tod1d. I will check the gcode (I just noticed that I can save the gcode out from CC.) The speed readout on the interface during the retract showed 7ipm, which was my plunge rate. This was a contour toolpath.

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You are correct, @Tod1d. I saved out the gcode, and the retract was indeed at cut feedrate, which was 7ipm. My plunge (contrary to my memory) was half that, 3.5ipm. I still vote for G0 retract! :slight_smile:

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Me too! :smiley: (or an additional retract speed with “rapid” as an option )

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