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[Solved] Invers GCode Creation  

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sango
(@sango)
Active Member
Invers GCode Creation

Hello,

i tried to slice this model https://www.prusaprinters.org/prints/53282-parametric-lightweight-masterspool

The preview of the stl looks good, but the Gcode preview is obviously wrong. The holes are filled, the material is missing.

Preview:

Gcode:

 

I tried 0,4mm profiles, 0.8mm profiles, all with the same result. Tried different options, no change.

I tried attached the 3mf for reference, but am not able.

The Stl was created in openSCAD, with the v4 masterspool version with exploded+cutaway option. Default values otherwise.

PrusaSlicer 2.3.0+win64

This topic was modified 3 years ago by sango

Prusa Mini+ since 4. March 2021, with e3d v6 all metal hotend.
Printing mostly useful stuff and toys for the kids.

Posted : 27/05/2021 7:29 am
sango
(@sango)
Active Member
Topic starter answered:
RE: Invers GCode Creation

I tried the PrusaSlicer 2.3.1-rc, it seems to work there. Also the stl is shown more correctly.

Prusa Mini+ since 4. March 2021, with e3d v6 all metal hotend.
Printing mostly useful stuff and toys for the kids.

Posted : 27/05/2021 7:45 am
Ringarn67 liked
Neophyl
(@neophyl)
Illustrious Member
RE: Invers GCode Creation

To attach files you must first zip them up as 3mf or stl etc are not allowed formats.

The issues with the model are almost certainly down to openscad.  In fact you can see issues with the original file before slicing (the darker faces where there shouldn't be).   Unless created perfectly Openscad models have a tendency to slice exactly as you show. 
The new as yet to be released PS 2.4 is supposed to have better automatic fixing for the common Openscad pitfalls but this is not an error in Prusa Slicer but in the source model.

 

Posted : 27/05/2021 8:07 am
Diem
 Diem
(@diem)
Illustrious Member
RE: Invers GCode Creation

I tried with the parameters you gave, it sliced OK with slicer 2.3.1

But that model is almost too parametric, it is extremely easy to break if you play with the parameters without checking the code; even if you think you have reset them.

I suggest you download the file again and make the one change by cut and paste from a clean copy.  Does it slice OK now?

Cheerio,

Posted : 27/05/2021 12:52 pm
sango
(@sango)
Active Member
Topic starter answered:
RE: Invers GCode Creation

@diem

I sliced it in 2.3.1-rc and that was ok. I printed it, and it looks ok. But i think i will use empty prusament spools in future for Masterspools.

It is very parametric with a high focus on building a lightweight model, this of course can be the root of the problem. Well, it seems to be "fixed" in the 2.3.1, and that should be it then.

Prusa Mini+ since 4. March 2021, with e3d v6 all metal hotend.
Printing mostly useful stuff and toys for the kids.

Posted : 27/05/2021 2:01 pm
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