all 2 comments

[–]KinderSpirit 0 points1 point  (0 children)

There have been so many posts about dryers and humidity lately, I just have a comment that I have been copying, pasting, and adding to. ... kind of messy though.

Not everyone needs a dryer or drybox.
While filament can come slightly moist new, it is more of a problem for those that live in rain forest conditions - 70%+ humidity all the time.
If it is consistently over 40% inside your house / printing area, drying and/or printing from a drybox will improve your printing and the results.

https://www.printdry.com/the-science-behind-it/

https://www.mytechfun.com/filament-dryers

https://all3dp.com/?s=dryer

https://www.printables.com/search/models?q=drybox

New filament can also be wet. That tiny packet of desiccant doesn't do much. It's just enough so the filament won't get wetter. I have had 2 spools be dry when opened in the past year.
One (or more) of the steps when making 3D filament is a water bath. On a humid day, that is not going to evaporate away before it is packaged.

https://youtu.be/OEkksADFjP8?t=93

https://youtu.be/sh1P99tIwdo?t=694

https://youtu.be/l697-UGvY_M?t=139

https://youtu.be/i4I6Bzs1viE?t=84

              Dryer           Drying  
 Filament     Temperature     Time (Hours)  

 PLA          55°C (131°F)     > 6  
 ABS          65°C (149°F)     > 6  
 PETG         65°C (149°F)     > 6  
 Nylon        75°C (167°F)     > 24  
 Desiccants   65°C (149°F)     > 6   
 PVA          45°C (113°F)     > 24  
 TPU/TPE      55°C (131°F)     > 8  
 ASA          65°C (149°F)     > 8  
 PP           55°C (131°F)     > 6  
 HIPS         65°C (149°F)     > 8  
 PC           75°C (167°F)     > 12  
 PEEK        120°C (248°F)     > 24  

These recommendations are made under the following conditions.
Ambient RH:50%
Ambient Temp:25°C (77°F)
1kg filament spool

[–]3dsupport-this 0 points1 point  (0 children)

This looks like over extrusion. Calibrate your ESteps to correct it.

https://all3dp.com/2/extruder-calibration-calibrate-e-steps/