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juergen.berlin
(@juergen-berlin)
Active Member
Top layer not filled

After some inital trouble shooting with the Powder coated sheet I am getting sticky prints but the top layer is not solid. This happens with different filaments.

Any trouble shooting tips or tips for the Prusaslicer? I am running everything stock with Print settings 0.15 Quality on Prusaslicer 2.2.0 with the most recent Firmware 4.05 RC1

Best Answer by bobstro:

An easy test for large top infill areas is to simply dial the speed back using the front knob mid-print. On a large top infill area, I like to adjust after the problem area has partially printed for ease of comparison. Dial speed back to 50% and see if it evens out.

  • If slowing down helps, you can increment it slowly. If this works, it's an indication that you may need to reduce speeds, at least for top infill. You can adjust that specific setting under Print Settings->Speed->Speed for print moves->Top solid infill, or make an overall adjustment to throttle speeds for that specific filament (viscosity will vary by brand and type) under Filament Settings->Advanced->Print speed override->Max volumetric speed. This setting (MVS) applies a throttle based on the hotend throughput. You can change it here once for the filament without having to fiddle with your print profile speed settings.
  • If slowing doesn't help, you may just be under-extruding. You can try calibrating your extrusion multiplier for that filament. This is useful when you're using a filament that doesn't exactly match the filament settings profile (e.g. different brand of same type).

Try those out and update us with your progress. Good luck with it!

This topic was modified 5 years ago by juergen.berlin
Posted : 29/03/2020 2:02 pm
bobstro
(@bobstro)
Illustrious Member
RE: Top layer not filled

An easy test for large top infill areas is to simply dial the speed back using the front knob mid-print. On a large top infill area, I like to adjust after the problem area has partially printed for ease of comparison. Dial speed back to 50% and see if it evens out.

  • If slowing down helps, you can increment it slowly. If this works, it's an indication that you may need to reduce speeds, at least for top infill. You can adjust that specific setting under Print Settings->Speed->Speed for print moves->Top solid infill, or make an overall adjustment to throttle speeds for that specific filament (viscosity will vary by brand and type) under Filament Settings->Advanced->Print speed override->Max volumetric speed. This setting (MVS) applies a throttle based on the hotend throughput. You can change it here once for the filament without having to fiddle with your print profile speed settings.
  • If slowing doesn't help, you may just be under-extruding. You can try calibrating your extrusion multiplier for that filament. This is useful when you're using a filament that doesn't exactly match the filament settings profile (e.g. different brand of same type).

Try those out and update us with your progress. Good luck with it!

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 29/03/2020 5:38 pm
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