Having difficulty since changing to a PEI magnetic bed.
Posted Jan 14, 2023, 12:10 AM UTC
411
if adhesion is an issue, wash with hot soapy water, dawn dish soap or similar. it removes things straight IPA cannot.
if not an adhesion issue, make sure your z offset is optimized for the additional thickness of the bed etc.
5
I'm going to try printing again tomorrow after work. I cleaned the magnetic bed with warm/hot soapy water as suggested and have made z offset adjustments too. My next step is to obtain the right kind of grease to make sure everything's in working order on the mechanical end of things. Also made sure my belt is tightened to an acceptable amount with my belt tensioners too.
If I remember - I'll be sure to update this thread with any new results.
1
there’s nothing in the settings you’ve given so far that raise a red flag.
rule out material by trying a different filament.
rule out the gcode by trying a different model with the same material.
could it be the model is not absolute flat on the plate in the slicer?
2
Not a cleaning problem. Nozzle is too high on the first layer. Textured beds need a lower nozzle height because you have to squish the filament into all the tiny gaps in the bed surface. Increase your z offset while printing until you get a nice smooth consecutive print lines. Right now you have gaps between every print line.
2
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1
Before I was printing on a glass sheet and everything printed out nice and fine but when I switched to a PEI magnetic bed I started having a lot of trouble. This is just part of the first layer.
My printer is an Ender 3 Pro and this was sliced in Cura 4.13.1. The filament is Overture White 1.75 PLA printed at 210°C at the extruder with a heated bed temperature of 60°C. Print was set at a slower speed of 40mm/s and the nozzle retraction is at 5.0mm @ 45.0 mm/s.
I thought that if I switched to an older Cura build from Cura 5.2 that it might help but unfortunately that didn't do anything. Bed has been checked and leveled before the print.
1
Last night I decided to do a few things before printing this piece again. I washed the PEI sheet with warm soapy water (as recommended by other Redditors), did another re-level of the bed, wiped down the lead screw and reapplied a new coat of grease, and also adjusted the nozzle height via babystepping during the first layer.
Suffice to say it all worked out perfectly with virtually all of the recommendations helping out immensely. I was surprised because I thought it was mainly the filament but confused since it was a brand-new roll right out of the box/plastic. I switched to a Sunlu gold silk PLA roll that was running low that I've had for the better part of a couple of years and it printed almost perfectly, which was kind of odd. But it worked out.
Thank you everyone!
1
Wash with hot soapy water
I've been wiping it down with IPA rubbing alcohol every so often. Would the soap and water make a huge difference?
alcohol stops working, yes, use a dish soap
Yes. Wash with dish soap. It does wonders for these textured beds