bubnikv
commented
5 years ago This sounds like an under-extrusion issue, and you need to calibrate your extruder e-steps.
Instead of printing a part with all the requested perimeters, reduce the number of perimeters and print the "inner perimeters" as solid infill instead.
Do you have "Detect thin walls" enabled?
On Fri, Feb 22, 2019 at 9:23 AM isaakMalers notifications@github.com wrote:
Version
1.41 Operating system type + version
N/A 3D printer brand / version + firmware version (if known)
Custom Delta Kossel Duplicator 6 Maker Select Plus FT-5 N/A * all printers exhibit this issue. Behavior
Slic3r performs very poorly in printing long runs of a part that are barely too thin to require infill. This kind of model is extremely common when trying to use a 3d print to emulate an injection molded part. To reproduce issue, print the linked part with the following conditions:
- .4mm nozzle
- 3 perimeters
- Nylon, Cheap ABS, Or any other "tricky because its prone to under-extrude" filament. Note that this kind of filament is not a requirement for this issue (given certain parts i can replicate with PLA), but it does make it easier to reproduce.
- Slicer settings on default (1 print)
- Slicer settings on default, but with .5mm extrusion widths over-ridden for everything. (1 print)
Test STL: printer-test.zip https://github.com/prusa3d/Slic3r-settings/files/2892959/printer-test.zip
Results: Perimeters do not bond together, and it is possible to "splinter" the print apart. Depending on how many perimeters there are. Note that this is not an issue with under-extrusion or printer "slop" 2/4 of the walls on this print come out great for me, and the results are the same regardless of orientation of the part.
[image: inkedtest print alloy 910_li] https://user-images.githubusercontent.com/8919579/53228439-74629200-363e-11e9-86ce-d79dcf52f821.jpg
Expected Results: The part shouldn't be so weak. But more specifically I could see this being solved in 2 ways:
1.
More sophisticated extrusion width/flow rate calculation, filling in the area with solid plastic. 2.
Instead of printing a part with all the requested perimeters, reduce the number of perimeters and print the "inner perimeters" as solid infill instead.
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Isaak-Malers
Version
1.41
Operating system type + version
N/A
3D printer brand / version + firmware version (if known)
Custom Delta Kossel Duplicator 6 Maker Select Plus FT-5 N/A * all printers exhibit this issue.
Behavior
Slic3r performs very poorly in printing long runs of a part that are barely too thin to require infill. This kind of model is extremely common when trying to use a 3d print to emulate an injection molded part. To reproduce issue, print the linked part with the following conditions:
Test STL: printer-test.zip
Results: Perimeters do not bond together, and it is possible to "splinter" the print apart. Depending on how many perimeters there are. Note that this is not an issue with under-extrusion or printer "slop" 2/4 of the walls on this print come out great for me, and the results are the same regardless of orientation of the part.
Expected Results: The part shouldn't be so weak. But more specifically I could see this being solved in 2 ways:
More sophisticated extrusion width/flow rate calculation, filling in the area with solid plastic.
Instead of printing a part with all the requested perimeters, reduce the number of perimeters and print the "inner perimeters" as solid infill instead.