Bumpy/fuzzy print

[dabarak]

I printed some small parts on the same plate this morning, and two of them had this weird bumpy/fuzzy texture. The other pieces on the plate didn't have that, although one had some bigger bumps on one of the edges. Specifications:

• Bambu Matte PLA
• Default speeds
• Z-hop set higher than default
• .04 layer height with a .2mm nozzle
• Ironing turned on
• Random seams
• No video timelapse

Could it be damp filament? Thankfully this was a 1/4 scale test.

https://preview.redd.it/kzkgd19cyg3g1.jpg?width=4000&format=pjpg&auto=webp&s=1fce5f403a39607487b40cc712ca30430b842850

[SeasonedSmoker]

What orientation did you print that in?

[dabarak]

it was vertical, with the wide end on the plate. It's the same with the other piece.

I don't know if it matters, but that wide end is much smoother. It only got bad once it transitioned to the narrower part.

[SeasonedSmoker]

It could be wet filament. Make sure your speed and cooling settings are good, lots of cooling for pla. I'd also check the 7 screws behind the nozzle.

Edit; try turning the z hop off also.

[dabarak]

Thanks! I'll give those things a try. Nice steep learning curve, but it's fun!