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Linear Advance and Retractions


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Posted (edited) · Linear Advance and Retractions

When I use Linear Advance combined with retractions I get under/over extruding issues.

Had one where it barely printed for a couple of layers then carried on creating a weak spot.

Always does it on the same point in the model.

 

Linear advance with no retraction works well on most of it but very long travels and waits for min layer time produce too much oozing

Tried it with fw retractions but still got problems

 

So I generated the gcode without any retractions then used Notepad++ to

Find

(;MESH(.*\r\n){0,10};LAYER:\S+(?:\s\S+)?)

Replace

G10\n$1\nG11

adding fw retractions at layer changes.

 

This works well so far, though when I used (M204(.*\r\n){0,10};LAYER:([\s\S]*?);TYPE:\S+(?:\s\S+)?) instead I still got similar issues so maybe it's the placement?

 

Anyone else been struggling with similar?

Edited by Keventurist
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