Ultimaker / Ultimaker/CuraEngine

Start new layer along a previously placed line

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#116 1 comment 0 reactions 0 assignees View on GitHub

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enhancement
Dominant language
C++
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Merged PRs (30d)
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Description

Would it be possible to make Cura start layers along the path of a previous layer, so that it wouldn't try to start printing in air on a new layer?
Here's an image showing support structure generated by Cura, where a new layer is started in a way that the line will form a "worm" inside the support structure instead of it actually supporting the overhang of the real object, because when unretracting, the plastic is not always coming out immediately, but with a slight (a millimeter, perhaps) delay. Depending on a situation, this can also happen to the objects being printed.

curaoverhanglayerstartissue

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by reproducing the described layer-start behavior in CuraEngine and trace the G-code generation path that chooses where a new layer begins. Done means a new layer can start along the path of a previously placed line, avoiding unsupported starts in the support structure or printed object.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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