Printing Problems wit 0.2mm Nozzle

Dear Snapmaker Community

I recently bought a Snapmaker 2.0 it performd great.
But now i mounted a 0.2mm nozzle on the hotend and runned a print with cura, and the print came out like swiss chees…

All in all the print was coming along but on the top surface it began to get a pretty god amount of holes.

Does someone now this problem and knows how to fix it?

(left side was printed with a 0.4mm nozzle and the right with a 0.2mm nozzle)

I’m assuming you changed the setting in Cura for nozzle size.

Looks like it’s under extruding and possibly getting clogged.
Might want to raise nozzle temp. Did you print a temp tower?

Did you calibrate the extruder with the .2mm nozzle on it?

-S

Yes i changed the settings on cura to 0.2mm nozzle.
I’m also printing at 212°C for PLA.

filament looks pretty wet to me. dehydrate it or try another spool.

even brand new spools are wet sometimes.

What is the best way to dehydrate filament?
Is it possible to put it in the oven by a lower temperature?

yes sir

oven is not really super easy to deal with for this but it can work, maybe 40-45 degrees c, but u gota pre-heat

honestly a cheap food dehydrator is a good investment, and you can print an adaptor ring to do this with.

once you dehydrate a spool, you wont use a spool until you do it. its amazing

i have graduated to a printdry system now

Calibrate your extruder with 0.2mm nozzle, to be sure you are not underextruded. After that I would suggest to print more top-layers to prevent such holes.
BTW, what’s your retraction settings? I would suggest you about 1mm to prevent filament grinding.

A dry-box and printing enclosure is in progress.
For my next print i definitely use a higher printing temperature, as well i will try to dry the filament.

The strange thing is: bottom, walls and infill came out great…

Thanks to all for the fast response.
I’ll give an update after my next try :grin:

Thanks guys it worked out great.
I raisd the temperature and added more layers on top and bottom and also gave it a little more infill.
I lowered the printing speed to 18mm/s

It’s great to this community around to help each other😁

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