Retract height question

[JJackrabbit]

Hi

I have a bit of a strange problem and can't find out why it happens.

My tools are in the Fusion360 tool library and the tool length is in the tool length table of my CNC controller software (linuxcnc).

So far everything is working fine.

I machine a part that has a height of 20mm.

After machining the tolerances are spot on. 20mm=20mm

But when the tool retracts it sometimes hits the wall of the part.

Z should go up, once it's up it should move in X and Y direction to the next spot.

But instead it goes up and in the last part of the Z movement it already starts to move in the X and Y direction where it sometimes hits the part with the tip of the endmill/drill.

Could this be Fusion360 related?

I can increase the retract height by a couple of mm, but that's a workaround.

[LibertyMachine]

To better answer your question, could you share your model?

File > Export > Save to local folder. Return to thread and attach the .f3d

It's likely a user setting, not a Fusion issue

What is the machine and control?

[JJackrabbit]

added the f3d

[LibertyMachine]

What is the machine and control?

[JJackrabbit]

I use a MESA card with LinuxCNC and a Tormach PCNC1100 clone

[etfrench]

I've had the same thing happen to me with broken tool bit as a result.  There are two settings that may affect this:

1. On the Linking tab set the High Feedrate Mode to 'Preserve Radial Movement'
2. Also on the Linking tab, check the 'Perpendicular' checkbox

[JJackrabbit]

Thanks, I will check those settings