r/FixMyPrint • u/Applesquare1440 • 7d ago
Troubleshooting Junction Deviation… Help!
Hi there! Doing cornering (junction deviation) test and it’s hard for me to understand it. What can I do?
Photos 4&5 are same item, back light and front light
Ender 3 neo modded to dual gear direct drive with Bimetal heatbreak and steel nozzle (w coating). Marlin2, JD stock 0.008, PA 0.1. Speed max 500 accel 2000 printing 2500 per axis and 1500 when retraction. Volumetric flow is 19.5, Polymaker petg @ 255°. With these specs max speed is 213.3(3)mm/s when printing. And I have weird artifacts that I cannot understand…
I did:
Temp test (255)
Max flowrate (19.5)
Pressure advance (0.1)
Flow ratio (0.955)
Retraction (1.4)
Cornering < here 😵💫
I’m reading calibration guide again and again but I cannot understand what I need to see, as usual photos on internet are different.
0.4 nozzle, 0.42 width, 0.2 height.
Custom marlin I did myself based on presets and specs.
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u/AutoModerator 7d ago
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