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- Fusion 360 CAM gcode creates a tooling mark.

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Message 1 of 3

08-01-2023
06:46 PM

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08-01-2023
06:46 PM

I was hoping the gcode would be a smooth curve in this operation. I don't know how to solve it. This is Nylon 6.

Here's a code snipit - the mark is created because the Z axis is only changing in one location.

X47.669 Y-9.417

X47.41 Y-9.369

X46.542 Y-9.23

X46.26 Y-9.191

X45.414 Y-9.082

X45.132 Y-9.055

X44.569 Y-9.001

X44.287 Y-8.977

X43.253 Y-8.91

X43.249

------------------------------I think the mark starts here

X43.211 Y-8.909 Z79.498

X43.19 Y-8.908

X43.169 Z79.497

X43.147 Y-8.907 Z79.496

X43.126 Y-8.906 Z79.495

X43.105 Z79.493

X43.084 Y-8.905 Z79.492

X43.066 Y-8.903 Z79.493

X43.047 Y-8.901

X43.028 Y-8.899

X43.009 Y-8.897

X42.991 Y-8.895

X42.972 Y-8.893

X42.953 Y-8.891

X42.934 Y-8.889

X42.919 Y-8.888 Z79.492

X42.904 Y-8.886

X42.89 Y-8.885

X42.875 Y-8.884 Z79.491

X42.86 Y-8.882

X42.846 Y-8.881 Z79.49

X42.831 Y-8.88 Z79.489

X42.817 Y-8.878

X42.802 Y-8.877 Z79.488

X42.787 Y-8.876 Z79.487

X42.773 Y-8.874

X42.758 Y-8.873 Z79.486

X42.743 Y-8.872 Z79.485

X42.729 Y-8.87 Z79.484

X42.714 Y-8.869 Z79.483

X42.7 Y-8.868 Z79.482

X42.685 Y-8.867

X42.652 Z79.476

X42.619 Z79.47

X42.586 Y-8.868 Z79.464

X42.554 Z79.458

X42.5 Y-8.869 Z79.447

X42.447 Y-8.87 Z79.437

X42.394 Y-8.873 Z79.423

X42.342 Y-8.876 Z79.408

X42.327 Y-8.877 Z79.404

X42.313 Y-8.878 Z79.4

----------------------------------and ends here

X42.312

X40.247 Y-9.011

X39.213 Y-9.077

X39.075 Y-9.088

X38.368 Y-9.156

X38.086 Y-9.183

X37.24 Y-9.291

X36.958 Y-9.331

X36.113 Y-9.467

X35.831 Y-9.519

X35.148 Y-9.651

X34.985 Y-9.684

Solved! Go to Solution.

Solved by a.laasW8M6T. Go to Solution.

2 REPLIES 2

Message 2 of 3

08-01-2023
07:36 PM

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08-01-2023
07:36 PM

The reason your seeing the mark is because fusion is linking over the slot in your model, when you put the slot in later you wont even see the mark.

But if you want a nice smooth conical finish then you can do this:

Duplicate the model body, turn off the original body visibility and then delete the slot from the duplicate:

Now in your 3d contour toolpath you select the boundary chains on the duplicate model and turn on the model selection checkbox, then pick the duplicate model:

Now you get a nice continuous(ish) 3d contour toolpath

We can make it better though, if you turn on points you can see the toolpath is made up of many short line segments:

To improve this go to passes and turn on smoothing:

Now you get a much cleaner toolpath.

See attached file

Message 3 of 3

08-01-2023
08:05 PM

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08-01-2023
08:05 PM

It's late tonight - I'll try that out tomorrow, but THIS IS AWESOME! You have explained the issue and shown a solution.

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