OK maybe this was too aggressive even for Adaptive Clearing ;)

[Chaz]

And then failed attempt. Surprised by the endmill snapping. Expected more but I am severely limited by RPM. Sorry. the Youtube info isnt shown unless you watch it there but its at 1500mm/min.

[JAZZCNC]

And then failed attempt. Surprised by the endmill snapping. Expected more but I am severely limited by RPM. Sorry. the Youtube info isnt shown unless you watch it there but its at 1500mm/min.

That looks like drove the tool into material on positional move rather than trying to take cut. Did you simulate the toolpath to check for any crashes.?

[Chaz]

That looks like drove the tool into material on positional move rather than trying to take cut. Did you simulate the toolpath to check for any crashes.?

Its the same path as the previous cut. The first one was done a bit slower. The stock dimensions are less than what was programmed, that's why it cuts a bit of air but it does look like it 'plunged' but it did path is the same cut as the first vid (just reset the zero and went again).

[JAZZCNC]

Its the same path as the previous cut. The first one was done a bit slower. The stock dimensions are less than what was programmed, that's why it cuts a bit of air but it does look like it 'plunged' but it did path is the same cut as the first vid (just reset the zero and went again).

But did you move the stock so it thinks in different place or possibly didn't zero Y axis exactly right because to me it looks like it's doing positional move and thinks stock edge is in different place to where actually is. The fact the tool path retract distance when moving is so close doesn't allow much room for error.!

[Chaz]

I think I have another 8mm roughing mill. Will setup a toolpath that that goes around the square with constant contact and see how that works.