Z max- and yet...I drag through on start

Kiri:Moto
1

Afternoon everyone.
I thought I had everything worked out… An issue I did not expect, fortunately my bit survived.
I have toggled Z max as first move and yet I drug through the wood heading for the initial drill position. I only had the first three operations activated so I could drill some holes and then do a bit change.
workspace_ccw_propeller_v7.kmz (548.4 KB)

I am including the KMZ and hope someone will point out why I did not achieve zmax first. I have the last instructions to return to start at altitude so I don’t drag through the wood heading back to start.
thanks
David

2

have you tried increasing your “Z Clearance” to a few mm? also, using a Contour flatness of 0.0001 might improve the finish on this geometry

3

Thank you Stewart, will try that.
I was just signing up to the discord.
David

4

Evening Stewart, and everyone else as well.
I did raise the z clearance quite a bit and still run onto my wood though at an increased height.
I previously managed to change the footer so that I ran at height back to home, avoiding the crash issue at the end.
I know it must be possible to add a bit of code to the header to lift Z first. How do I make certain the bit then drops down to the proper height to start the actual cutting?
David

I added to the header - g90 g28 z80.0 . (80mm is my maximum material height under the gantry.) Spindle went up and right back down, quit moving.
Under the Output, the ease angle allows the bit to ramp in to the project on a downward trajectory. Does this also affect the initial travel to start? Ramping upwards?
I know there must be a way to achieve safe travel height before the spindle heads anywhere else. Any thoughts? I do have first zmax and force zmax checked.
dc