Lemmy
lensdump.com
Ender 3 Pro

Hello Lemmies.

album with photos in order 1-7: https://lensdump.com/a/9Atmx/?sort=title_asc&page=1

EDIT: Direct links may be more convinient pic 1-7

https://i.lensdump.com/i/CbGQ5c.jpeg

https://i1.lensdump.com/i/CbGJv1.jpeg

https://i.lensdump.com/i/CbGtcQ.jpeg

https://i1.lensdump.com/i/CbGrOM.jpeg

https://i1.lensdump.com/i/CbGEDk.jpeg

https://i3.lensdump.com/i/CbGTse.jpeg

https://i2.lensdump.com/i/Cw2uL9.jpeg

I am new to 3d printing as I bought a used Ender3PRO. After initial problems with no adhesion I leveled the bed a couple of tiems. My method is to pinch the paper between the bed and the nozzle to grab and feel a strong friction taking out the paper-sheet. Then in PrusaSlicer I set the Z-offset to 0.2mm and it started printing fine-ish (pic.1, 2, 3 and 4). I made some printer vibrations dampener and figures (around 14 prints ~1,5h each). Next I printed a PS4 Slim Stand (pic.5) and separations between layers appeared.

I increased a bit the temp and run a second piece of the PS4 stand and a dissaster appeared (pic.6) and since then the adhesion to the bed is gone. One in 5 attempts with some glue the filament sticked to the bed, but the next layers have a lot of missplacements and eventually filament sticked arround the nozzle and a destroyed print.

The problems I noticed since the beginning:

  1. adhesion is not great. The nozzle clean line is 80% of attempts dragged with the nozzle to the center of the bed when the brim starts printing. And gets curved just outside the hotend.
  2. a 1-2mm of filament is always outside the nozzle (overextrusion?). I usually clean it with my fingers - wrong?
  3. the printer has a glass bed but I would like to try using the magnetic Ender sheet. The glass is glued to the printer (pic.7)? Can I place the magnetic sheet on the glass? Should I then set Z-offset on the printer settings to avoid nozzle coliding with the bed?
  4. On retraction, the extruder makes a loud click and sometimes a squeak. Is it normal?
  5. I had a hard time to put the filament in the tube of the extruder. Like it was missplaced and had to bend the tip of the filament.
  6. I washed the magnetic sheet with dish-soap and I’ll try my chances today.
  7. The PLA is black, stock Ender3 filament which I suppose is not best quality, but should be sufficient for start… Im also considering moisture in filament as I don’t have a sperate room for my printer. Pic.6 - can it be caused by moisture?
  8. After what happender on Pic.6 the extrusion was really poor which I think was due to clogged nozzle. After heating to 240*C, pulling out the filament, needle-cleaning the nozzle the amount of filament extruded returned to what it was at start.

Some settings:

  • 205C and 60C for first layer
  • 200C and 55C for the rest
  • retraction ON
  • no Z-hop (I’ll try to avoid it for now, since it didn’t help)
  • brim on
  • 0,2 layer height
  • first layer speed 20mm/s, rest ~40mm/s

Any advice welcome and I’ll provide more info if You have any questions.

  • Yurgenst@lemmy.worldEnglish
    1·
    2 years ago

    Hey! I also run an Ender 3 and I’ve run into a couple of the same problems as you, I’ll see if I can help.

    1. Regular children’s glue stick, the non toxic water soluble stuff. I apply a thin layer to the bed before prints to help them stick. Helps first layer stick well.
    2. Maybe elephants foot? There is a setting in many slicers to increase extrusion on the first layer to help adhere to the bed, you should be able to decrease it when slicing.
    3. As long as the magnetic sheet still sticks with the glass you can use it but definitely check your z height and re level
    4. When the extruder clicks it is missing steps, this means there’s too much friction somewhere. Check the tension on the spring in the extruder. I actually had to change my Bowden tube to a Capricorn and replace my nozzle and it fixed this issue for me.
    5. Same, I think it’s just an issue with the design
    6. 👍 7/8. Print 6 was probably caused by a clogged nozzle causing missed steps, nozzles are cheap enough I’d replace it.

    Hope that helps, I was having similar issues and the new nozzle and Bowden solved them.