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Printed parts - infill % - 15% or 20%?  

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Steve
(@steve-6)
Estimable Member
Printed parts - infill % - 15% or 20%?

I am waiting on a response from Support in relation to clarification:

Assembly manual and Prusa's general article in their Knowledge Base each suggest to use 20% grid infill for any printed parts.

Notes on the Printables for the MMU3 printed parts (as well as for MK4 printed parts), mention to use 15% grid infill.

It probably doesn't make that much difference to the overall strength of the part but it would be good to understand what is the correct official recommendation.

 

Respondido : 31/07/2023 9:32 pm
Steve
(@steve-6)
Estimable Member
Topic starter answered:
RE: Printed parts - infill % - 15% or 20%?

Notwithstanding the gcode files supplied by Prusa are based on 15% infill, (also referenced in the details on Printables), Support have advised that parts printed and supplied by Prusa from their factory are done with 20% infill. 

It doesn't really matter given only a small  difference but there should only be one recommended set of parameters.

Respondido : 01/08/2023 9:27 am
pink_clown
(@pink_clown)
Estimable Member
RE: Printed parts - infill % - 15% or 20%?

Can you put here the refference links?

Respondido : 03/08/2023 7:01 am
3Doxle
(@3doxle)
Active Member
RE: Printed parts - infill % - 15% or 20%?

I used 15% infill, both grid (recommended) and honeycomb. It's not terribly important 

Also printed on a 0.6mm nozzle with 3-5 perimeters. External perimeters first checked. 

 

Everything is functional and from what I've read/experienced perimeters have a lot more to do with strength than infill.

Dimensionally accurate parts are far more important. The parts are designed to print without supports which requires very good overhang performance. 

Respondido : 07/08/2023 5:09 pm
Chelltim y carlmmii me gusta
Chelltim
(@chelltim)
Miembro
RE: Printed parts - infill % - 15% or 20%?

@3Doxle -

Did your ⌀0.6mm-nozzle-printed parts assemble well? I have the 0.25mm nozzle equipped and could handle the tradeoff of time for quality, but I am concerned about tolerances and things not fitting as a result. I am hesitant to swap nozzles too. 

0.25mm would look very clean.

Respondido : 22/10/2023 11:58 pm
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