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

[JAZZCNC]

Awesome.

As soon as I get my misting system working on my little Denford, I want to do the same. I am however limited to about 4400 RPM via a 1.5KW AC Servo, so my level of adaptive is not the same but Im keen to see how far I can push.

Use larger cutter if possible and you'll stand more chance. Smaller cutters need the high rpm and will fail quickly if run with low rpm at high feeds.

[Chaz]

Use larger cutter if possible and you'll stand more chance. Smaller cutters need the high rpm and will fail quickly if run with low rpm at high feeds.

Currently use 8mm roughing and 10mm finishing end mills. I think Ive got a 10mm roughing one I can try.

[Chaz]

Use larger cutter if possible and you'll stand more chance. Smaller cutters need the high rpm and will fail quickly if run with low rpm at high feeds.

So I managed to get one set of cuts done and then snapped an 8mm roughing mill on the 2nd try.

Just uploading the vids now.

[Chaz]

Details there, 4K RPM, 1250 mm/min, 3 flute 8mm roughing mill. DOC 10mm, WOC 1mm.

[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.