Weird curling problem when printing a thin item in 100% infil

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TT_Vert
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Joined: January 29th, 2018, 3:41 pm
3D Printer(s): Maker Select V2

Weird curling problem when printing a thin item in 100% infil

Post by TT_Vert »

The print job is a 4.5mm thick plate (lid actually) that is 155x160mm (See attached stl). It will curl on the front right side of the print when printing infills of 50% or greater. Al though due to time constraints I only tested in 20% (my normal go to infill), 50% and 100% (What my goal infill for this job was)
  • The printer is a maker select 2 that I've had for many years.
  • The bed surface material was replaced a few months ago also but not because of this, just because it was years old.
  • I am using the same filament I've been using for 2 rolls from amazon (SUNLU).
  • I've had no other issues w/ this filament and reviews have been good
  • I print at 210/40C and always have w/o any issues
printer config:
  • Maker Select 2
  • I have a duct w/ a cage fan that cools prints. Print cooling fan is running after layer 2
  • 210/40C
  • 1st layer 15mm/sec
  • all other layers 50mm/sec
  • .28mm layer height
  • 210/40C

print info and tests I've run on same job
  • If I print the job at 50% infill it's better
  • If I print the job at 20% infill it does not curl
  • Tried to reduce printhead temp to 200, no change
  • Bed is level to .001" as confirmed w/ a feeler gauge
  • Bed is clear of any debris

I don't think it's pertinent here but I have included a copy of the item I was printing.
My
Last edited by TT_Vert on June 24th, 2022, 3:29 pm, edited 1 time in total.
TT_Vert
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Posts: 12
Joined: January 29th, 2018, 3:41 pm
3D Printer(s): Maker Select V2

Re: Weird curling problem when printing a thin item in 100% infil

Post by TT_Vert »

Any input?
TT_Vert
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Posts: 12
Joined: January 29th, 2018, 3:41 pm
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Re: Weird curling problem when printing a thin item in 100% infil

Post by TT_Vert »

wow tough crowd :(
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LePaul
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Re: Weird curling problem when printing a thin item in 100% infil

Post by LePaul »

I do see an attached photo but depending on the PLA, I would run the print bed to at least 60C

If you are having trouble with curling I would be suspicious of the bed surface and consider either a surface with a PEI or PEX surface (i.e. Wham Bam bed Systems) or some adhesion promoter, such as glue stick or even AquaNet Extra Hold hairspray
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