Fusion 360 tool path preview

[kellings]

I'm seeing a discrepancy between the tool path preview you see when you click on an operation vs. what you run a simulation on the tool path in Fusion 360.

This is the tool path preview I see when I click on the 2D contour OP. I'm using cutter comp set to in control and I have the lead in angle set to 0. The tool path looks pretty odd. I have a pretty large "tangential fragment extension distance" of around .5"



Here is what the tool path looks like when I run a simulation on it. This is more of what I expect the tool path to look like. I'm not sure why it isn't completely parallel to the entry point, but it is closer.


An iso shot of the simulated tool path.

[hansun_zhu]

Hello,

This is as desired - When Fusion shows a preview of the toolpath it is always the calculated (e.g. uncompensated) toolpath that is shown. The simulation and verification modes show the compensated toolpath as it would be run by the CNC machine.

And see some example image as below. Hope this is helpful for you!

Thanks
Hansun

[jeff.walters]

Good graphics Hansun and correct. The only time the system will not show the tool compensated in Simulation is if you have Off selected as your comp type.

[kellings]

Thanks, that makes sense.

Kevin

[Laurens-3DTechDraw]

Jeff Walters wrote:
Good graphics Hansun and correct. The only time the system will not show the tool compensated in Simulation is if you have Off selected as your comp type.

Actually what you say here is incorrect. Because there is nothing to compensate so it just shows the center of the tool which actually is a compensated value of the cutted edge.
But to keep things clear the simulation shows what the machine will be doing the preview shows what will be outputted by the post processor.(possibly with G-codes according to your choice.)