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Help with printing layers that require support  

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Ligyron
(@ligyron)
Active Member
Help with printing layers that require support

Hello, I was hoping for some help/direction on how to achieve a smooth finish on a layer that requires support.

I printed the following part.   The top side that printed up smooth, but the bottom side did not.  It required supports.

I have attached pictures of the part, and the top and bottom sides.  In addition I have attached the STL in the orientation that the object was printed.

I am using a MK3S+, at 0.15 mm quality, 15% infill.  The rest of the parameters are left on default. DDBDPalmRight.stl

Respondido : 23/12/2022 7:36 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Help with printing layers that require support

Simple answer: you can't.

By definition, the supported surface will be imperfect. There has to be a small gap between that surface and the top of the support ( I usually use 0.2 for 0.2 mm layer height) or the support would be fused into the model and couldn't be removed. So the filament will always droop a bit. 

With an MMU, dual extruders, etc. you could print supports with water soluble supports, so no need for a gap.

For most of us, this is just one of the limitations of FDM technology. If you need something smoother, you'll have to resort to post-processing aka sanding and polishing.

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Respondido : 23/12/2022 9:04 pm
Neophyl me gusta
Ligyron
(@ligyron)
Active Member
Topic starter answered:
RE: Help with printing layers that require support

Thank you very much!  I was concerned there was something I was missing.

You have save me countless hours searching for an answer!

Regards,

Nick

Respondido : 23/12/2022 9:35 pm
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