Retract before outer wall doesnt work

Ultimaker / Cura

3D printer / slicing GUI built on top of the Uranium framework

GNU Lesser General Public License v3.0

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Retract before outer wall doesnt work #19876

Open navi21 opened 6 days ago

navi21 commented 6 days ago

Cura Version

5.8.1

Operating System

windows 10

Printer

creality cr10

Reproduction steps

check retract before outer wall, slice model then print

Actual results

while printing its visible that it doesnt retract, it leaks while traveling from infill to outer wall, and outer wall has a gap because nozzle looses pressure before it needs to start outer wall

Expected results

retraction before outer wall works and there is no artifacts on outer wall

Add your .zip and screenshots here ⬇️

https://we.tl/t-gHL6ind3c6

GregValiant commented 6 days ago

Thanks for the report. I can duplicate this in both 5.8.0 and 5.9.0beta2.

@HellAholic might have time to take a look.

GregValiant commented 4 days ago

In regards to things happening at the Zseam in 5.9.0-beta.2 With Z-hops turned off and Scarf Seam Length set to "0.0", I get this movement at the end of every Layer. ;MESH:NONMESH G0 F600 X160.4 Y69.4 Z66.5 G0 F10500 X160.77 Y69.67 Z66.25 then ;LAYER:265 ;MESH:Timer Cover.stl G0 X161.6 Y69.9 Z66.5 That up-down-shuffle is unexpected and unwanted.

HellAholic commented 4 days ago

The retraction for layer 0 works but on higher layers it's getting either skipped or replaced,

G1 X64.705 Y65.86 E73.65361
G1 X44.54 Y65.86 E75.18279
G1 F1800 E73.78279
;MESH:2x2 cube.stl
G0 F6000 X45.154 Y64.346
G0 X64.308 Y64.66
;TYPE:WALL-OUTER
G1 F1800 E75.18279

We have a PR with the fix for the hop at end of layer, I can check if that resolves the issue and returns the behavior to normal but I doubt it would since you mentioned you saw the issue also in 5.8.0. Checked the 5.8.1, it's the same behavior, I'll update with a ticket tomorrow.

it is tomorrow: CURA-12275