Moving a cut from Fusion to Easel

So I made a guitar on fusion. Followed tutorials to get the gcode to Easel. All seemed fine. But when I cut it, the spindle goes up to the top of its range and then tries to go higher. Before I could hit the stop button it dropped down but is a good inch above the stock. Here is the gcode, at least the beginning. Ideas?
G90G94
G17
G21

(TOOL/MILL,6.35,0,15.875,0)
(STOCK/BLOCK,320,450,38,0, 0, 0)
M9
T1M6
S16000M3
G54
M9
G0X-0.654Y-7.314
Z43
Z41.01
Z29.27
G1Z28.635F1000
X-0.646Y-7.284Z28.439
X-0.624Y-7.196Z28.262
X-0.589Y-7.06Z28.121
X-0.545Y-6.889Z28.031
X-0.497Y-6.699Z28
X-0.303Y-5.846
X-0.155Y-4.984
X-0.054Y-4.115
X0.001Y-3.242
Y-3.092F1200
X-0.194Y-2.13
X-0.331Y-1.158
X-0.426Y-0.181
X-0.491Y0.798
X-0.536Y1.779
X-0.567Y2.76
X-0.588Y3.741
X-0.603Y4.722
X-0.613Y5.704
X-0.619Y6.685
X-0.624Y7.667

You need to remove the T1M6 grbl doesn’t handle the M6 command and the T1 is ignored.

You have some really long Z axis moves at the beginning. Is that what you would expect?

@ChristopherCook, what are your safety and retraction heights in Fusion 360 set to?

You don’t have 43mm above your stock.
As @cg49me said, check your heights in your CAM operation settings.
You also might have your WCS origin at the bottom of your stock. If you zero on the surface, that will cause the same type of issues.
Could be a post processor issue as well. What post are you using?

Be sure to change the up/down axis in fusion360 to Z axis…the default is the Y axis.

Thanks to all for the quick replies. I have been using easel for a year cutting things for my middle school makers classes but am trying to move to cutting curved tops for boxes/amulets/guitar bodies for a few advanced kids.

I
“You also might have your WCS origin at the bottom of your stock. If you zero on the surface, that will cause the same type of issues.” I think this is it.

One other wonder I have is how do I get fusion to NOT adaptively clear the entire area around the guitar body but just the body and a small cutout around it?

That part I got right :slight_smile:

Based on what the simulation did yes, but I would really rather just cut out the guitar body with tabs and then adaptively clear the actual body rather than the whole stock. This is my first design on fusion so the learning curve is STEEP. :slight_smile:

You define a Boundary in CAM for the specific tool path.
The boundary may in this case be the guiter body outline.

Geometric -> Machining Boundary -> Selection and select the shape outline

Great thanks. I really appreciate the help. As I get my feet on the ground I will search the forums for the answers. ATM I don’t know enough to search efficiently.

Are you breaking your carve into multiple steps? I use a different CAM operations for cutting the pickup/neck pocket, one for boring the holes, and separate ones for a few other details my design has. The final cutout is done with a contour operation, which will do what you said - just cut out the shape and leave tabs.

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John,
Right now I have 2: adaptive and parallel. Just want to see how that works out. Next steps will be pickup pockets and holes for bridge/tail. I am having a blast figuring it all out. I’ll be using this forum a ton I’d guess :slight_smile:

There’s also a Fusion 360 Luthier group on Facebook that’s very active.
https://www.facebook.com/groups/Fusion360Luthiers/

Cool thanks I’ll joins this pm. I got both cuts done and felt good, and then as the x-carve finished it just ripped home without raising the bit so this happened…

I imagine that I have to edit the gcode to either rasie the bit or not go home…

Ha! My first pink foam body test has a big gash in it too. Can’t remember what caused it. I now use fusion and UGS, and when the cut is done, the bit raises, and stops right there. I like that it lessens the chance of these types of errors.

What kind of post prosessor do you use, Easel.cps?
If you could share the fusion file we can look deeper into the CAM portion and stock setup in case of any obvious appear there.

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I’m guessing the post processor doesn’t like that your Z zero was on the wasteboard. Use a different post or modify the one you want to use.

I am using easel.cps here are the first and last bit of gcode
G90G94
G17
G21

(TOOL/MILL,6.35,0,15.875,0)
(STOCK/BLOCK,317.935,445.319,58.15,0, 0, 0)
M9
T1M6
S16000M3
G54
M9
G0X-0.643Y-7.315
Z73.15
Z63.15
Z49.423
G1Z48.788F1000
X-0.635Y-7.285Z48.592
X-0.613Y-7.198Z48.415

Last

X317.258Y309.099
Z8.42
G1Z7.785F1000
X317.266Y309.129Z7.589
X317.288Y309.217Z7.412
X317.323Y309.353Z7.271
X317.367Y309.524Z7.181
X317.416Y309.714Z7.15
X317.61Y310.567
X317.758Y311.429
X317.859Y312.298
X317.913Y313.171
Y313.294F1200
X317.911Y313.098F1000
X317.968Y312.911
X318.08Y312.75
X318.235Y312.631
X318.407Y312.537Z7.181
X318.562Y312.453Z7.271
X318.686Y312.385Z7.412
X318.765Y312.342Z7.589
X318.792Y312.327Z7.785
G0Z73.15

Grbl will ignore theT1 but will error out on the M6.

Ok, is that what caused the long cut at the end of the foam piece above? Sorry to be obtuse.