Extruder "Freezes" while printing spherical infill

[Mac_The_Knife]

So, after the big update where G2 and G3 are now enabled, I created a test model to compare the difference in file sizes.  The first without arcs enable was about 17 mb, and the one with arc enabled was 6.  Until I tried printing it.

The file with the arcs enabled "seized up" when it started to print the spherical infill at the z height of 2.9mm.  After checking my printer, and running a file I've already printed, I looked into the gcode that was generated.  It is calling out extrusion numbers all over the place.  Here's a small snippet:

G0 X147.794 Y148.038
;bead-sparse_infill
G1 X147.604 F3600 E2010.145
G1 Y148.044
G2 X144.634 Y151.014 I0 J2.97 E2010.339
G1 X144.624 E2010.34
G1 X144.615 Y150.807 E223.38
G1 X144.593 Y150.601 E446.759
G1 X144.556 Y150.397 E670.139
G1 X144.506 Y150.196 E893.519
G1 X144.442 Y149.999 E1116.898
G1 X144.365 Y149.807 E1340.278
G1 X144.274 Y149.62 E1563.658
G1 X144.172 Y149.44 E1787.037
G1 X144.057 Y149.268 E2010.417
G2 X141.654 Y148.044 I-2.404 J1.749 E2010.533
G2 X140.733 Y148.08 I-0.279 J4.577 E2010.572
G2 X138.228 Y151.014 I0.465 J2.933 E2010.746
G1 X138.217 E2010.747
G1 X138.209 Y150.807 E223.425
G1 X138.186 Y150.601 E446.85
G1 X138.15 Y150.397 E670.275
G1 X138.099 Y150.196 E893.7
G1 X138.036 Y149.999 E1117.125
G1 X137.958 Y149.807 E1340.55
G1 X137.868 Y149.62 E1563.975
G1 X137.765 Y149.44 E1787.4
G1 X137.651 Y149.268 E2010.824
G2 X135.712 Y148.08 I-2.405 J1.75 E2010.921

I'm using a the generic FFF post, on a FT-5 printer, with a Duet 2 wifi controller board. 

I've attached the model, and the txt file.

[serge.quiblier · Accepted solution]

Hello @Mac_The_Knife 

first, a little warning, the arc-fit function is a feature flag preview.

It means that it's close to public release, but it need testing in real condition.

(Let's say it's a function in beta state that can be deactivated if troublesome, and the community of Fusion users have a wider range of parts than our tests cases)

I am afraid you encountered a bug.

If you don't see any objection, we can pass your file to the developer for analysis.

Have a nice day,

Regards.

______________________________________________________________

If my post answers your question, please click the "Accept Solution" button. This helps everyone find answers more quickly!

[Mac_The_Knife]

I figured it was a bug, which is why I passed it on, and posted the files.  Go ahead and use the file, it was created for testing arc fitting.  If  they need anything else, let me know.

[serge.quiblier]

Hi @Mac_The_Knife 

There is no problem, but at least this way others peoples are aware of the current state of this function.

Thanks for helping us improve the software.

Regards