Jump to content

Gaps in top layer. Can't find the real source.

Recommended Posts

Posted · Gaps in top layer. Can't find the real source.


I hope you can help me. Regardless of which filament I use (3dJack PLA, Sunlu PLA / PLA+, AmazonBasics PLA) I have small gaps in the top layer.

r/FixMyPrint - Gaps in top layer. Can't find the real source.


Model: https://www.thingiverse.com/thing:3346069


  1. extruder steps are calibrated

  2. extrusion multiplier is measured and is 90%.

  3. extruder is a BMG direct drive extruder (https://ali.onl/1O4O) on Hiwin linear rail

What have I tried so far without success?

  1. raised the extrusion multiplier to 93% and 96

  2. extrusion multiplier top layer 100%

  3. fan speed of 40% and 60%.

  4. line width of 0.4 and 0.44


  • Printer & Slicer: Geetech A10 TrinagleLab Direct Drive Extruder (BMG+V6) on Hiwin Liniar Rail with 0.4mm Nozzle

  • Filament Material and Brand: 3djack PLA, Sunlu PLA, Sunlu PLA+, AmazonBasics PLA

  • Nozzle and Bed Temperature: 210°C / 35°C

  • Print Speed: 60mm/s / 30mm/s (top layer)

  • Nozzle Retraction Settings: 1mm, 40mm/s










  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • UltiMaker Cura 5.8 beta released
        Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
          • Like
        • 1 reply
      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
    • Create New...