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supermerill / SuperSlicer

G-code generator for 3D printers (Prusa, Voron, Creality, etc.)
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Gap fill causing excessive travel #585

Open harikattar opened 3 years ago

harikattar commented 3 years ago

Version

2.2.54 (nightly 2020-10-17) Same results in 2.2.53.2

Operating system type + version

Linux appimage

3D printer brand / version + firmware version (if known)

n/a

Behavior

When using one of the (filled) variants of infill patterns, excessive travel moves are generated.

Examining the first layer when using concentric (filled), it travels to a completely different area of the print every time a gap fill is generated.

excessive_travel

To reproduce, slice with concentric (filled) and examine the first layer with travel.

Without gap fill (just concentric), the infill finishes each area of the print before moving on to another.

limited_travel

The intersection between circle and square perimeters generates an extreme number of gaps for concentric that demonstrates this issue.

Project File (.3MF) where problem occurs

fan test.zip

supermerill commented 3 years ago

mmm, i think I understand where this problem comes from. Not that easy to fix, but manageable.

mwbrady commented 2 years ago

Is there any fix for this in the works? I have a very similar model that has given me excessive travels on gap fill, but I've been getting increasingly annoyed with the seemingly illogical move and travel planning implemented by superslicer. I know it's complex, but Cura 5.0 is leaps ahead on this. For thin parts that are mostly walls, thin walls and gap fill, I often find that the paths on a single layer in superslicer will be travelled nearly twice by the nozzle because the travels and backtracking become so excessive. I've been using Superslicer for a couple years now and I'm pretty well versed in the settings. Nothing I've tried will fix it. Other slicers like Cura 5 and Simplify3d don't have this issue. The paths in that seem to minimize the travels and total movement of the nozzle in a layer. I still think Superslicer it is a better slicer overall but the move planner has definitely fallen behind and for those trying to reduce print time, every extra move counts. I can provide examples of Superslicer vs Cura if necessary.

Version 2.3.57.9 on Windows 11

My model's first layer pictured with excessive travel between gap fill. Gap fill travels