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Shiny or not!  

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Threepoint2
(@threepoint2)
Eminent Member
Shiny or not!

Not strictly a first print issue, but here we have two perfectly reasonable test cubes. 
On the left is a Prusa mini cube and on the right a MK3. Sliced the same just changing the printer. Why is one cube matte and the other glossy. Is the part cooling on the Mini too good and therefore causing the Matt effect? What do people think? I could test myself with different temps but I’ve not spoken to anyone today so fancy the discussion. 

Posted : 17/01/2023 4:56 pm
Diem
 Diem
(@diem)
Illustrious Member

It looks like you can turn the print temperature down by a couple of degrees for that filament spool on the mk3.

Cheerio,

Posted : 18/01/2023 6:19 am
Neophyl
(@neophyl)
Illustrious Member
RE: Shiny or not!

Many things can effect surface finish not just temperature, speeds for example.  You would have to slice both side by side and compare things like speeds, volumetric flow, cooling etc in the previews to got a better idea.

Posted : 18/01/2023 7:03 am
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Threepoint2
(@threepoint2)
Eminent Member
Topic starter answered:
RE: Shiny or not!

Fair point, I wasn’t expecting this variance though. 

Posted : 18/01/2023 11:12 am
Neophyl
(@neophyl)
Illustrious Member
RE: Shiny or not!

I don't know how close the print profiles you used is on the mini or mk3, was it a common one ?  or is it one of Prusa's ?  If its one of prusa's then  if you compare say a 0.2mm Quality profile on the Mk3 to the 0.2mm Quality profile on the mini then there are a ton of differences. 

Also the accelerations and feed rates of the 2 printers are different too in printer settings.  

You often see differences even within the same model on the same print when you have larger and smaller islands printing.  Small perimeter speeds get thrown into the mix etc.  

Posted : 18/01/2023 11:23 am
Arrow
(@arrow)
Active Member
RE: Shiny or not!

This is very intriguing to me... I have never experimented with attempting different surface finishes. Is that something that you can tweak to the extend of a shiny part vs a matte part simply by adjusting the nozzle temperature?

I have only used mostly stock profiles available in PrusaSlicer for my prints, but if I can lower or raise the temperature to adjust the resulting sheen while not affecting the overall strength, that might be worth some investigation on my end...

Posted : 06/02/2023 1:45 am
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