Print Quality - Gaps at beginning of outer skin
nbGU last edited by nbGU
I've been trying to solve this problem for weeks and i'm at a loss with it. My extruder doesn't start laying down material until its 5mm into the outer skin layer but interestingly this problem doesn't appear on smaller printed parts (see images)
![1_1570344738137_20191006_074531.jpg](Uploading 100%) ![0_1570344738135_20191006_074526.jpg](Uploading 100%)
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I'm slicing the model in Cura, the print shown is PLA printed at 200 Celsius with:
- no retraction
- no coasting
- no outer wall wipe
- Z seam aligned to sharpest corner
- e3d titan aero on a cartesian machine
- No pressure advance from the Duet
- No fancy settings in Cura (like equalize filament flow, though i have tried it with no improvement)
I've played with acceleration, jerk and speed in my Duet 2, settings are currently a conservative:
Jerk: X 500, Y 500, E 1200 (mm/min)
Accel: X 800, Y 800, E1200 (mm/min)
Max speed: set high but in slicer i've printed between 40 and 90mm/s with travels between 90 and 160mm/s
My extruder is calibrated but i've experimented with increased extrusion multipliers to the point of obvious over extrusion and the problem still persists.
Like i say on smaller prints the problem is non existent, i get a near perfect Benchy print with 0.6mm retraction, 0.1 outer wall wipe and at jerk and acceleration 50% higher than what i've currently dialled back to.
Can anyone make suggestions to what you think might be the cause of the problem?
burtoogle last edited by
Two settings you don't mention but are worth trying are to set combing to "no-skin" and the max comb distance with no retract to something like 10 or 20.
Veti last edited by
nbGU last edited by
I normally print with 0.4mm retraction on small prints and get great results. I tried no retraction to try to solve this problem.
I switched to a default Cura profile today and my issue entirely went away, haven't gone through and figured out which setting was causing the problem yet though.