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Help Improving print quality  

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Chuck76
(@chuck76)
Active Member
Help Improving print quality

I recently assembled the i3 MK2S kit and need some suggestions on improving the print quality. BWT, I'm new to 3D printing. Attached are two pictures of a part made from the PLA that came with the printer. The code was generated using PrusaControl with the print quality set to Detail - 0.1mm. The bottom side is somewhat smooth where as the top is quite rough. Any suggestions toward improving the quality would be appreciated.

Posted : 28/03/2018 6:48 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: Help Improving print quality

Live z seems slightly too low. Extrusion mightt benefit from reduced extrusion multiplier
Maybe 5%less
Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 28/03/2018 9:38 pm
Chuck76
(@chuck76)
Active Member
Topic starter answered:
Re: Help Improving print quality

Joan,

Thanks for the reply. My Live z is currently -480, when you say to reduce the multiplier, should I go toward say -500 or -450? I will try the 5%.

Chuck

Posted : 29/03/2018 5:26 am
digibluh
(@digibluh)
Reputable Member
Re: Help Improving print quality


Joan,

Thanks for the reply. My Live z is currently -480, when you say to reduce the multiplier, should I go toward say -500 or -450? I will try the 5%.

Chuck

No, positive direction... higher like nozzle higher. multiplier is in slicer setting, but that's just for the top. but try the multiplier first as that could just fix the bottom too.

i also see some warping, try cleaning the bed also between prints.

Posted : 29/03/2018 7:03 pm
Chuck76
(@chuck76)
Active Member
Topic starter answered:
Re: Help Improving print quality

Joan,

I've reduced the live z from -480 twice, first to -450 and then to -400. The bottom finish is very close to that of a baby's butt, very smooth, but the top layer is still much rougher. You mentioned "multiplier is in slicer setting, but that's just for the top". Is that a setting I should be trying? I haven't use Slic3r yet.

Chuck

Posted : 31/03/2018 1:30 am
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: Help Improving print quality

Hi Chuck,
sorry i was slow to reply

in slic3r the extrusion multiplier is in the filament settings

in this mage, its set to 1

do a small test piece and try .95 or .90
or you could try "tune" / "flow" on the LCD Menu reducing from 100 to 95 has a similar effect
regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 31/03/2018 2:06 am
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