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Print Infill with Leftover Material/i3+MMU2  

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Gerhard Epple
(@gerhard-epple)
Member
Print Infill with Leftover Material/i3+MMU2

Hello!

Considering the printer is capable of printing multi material, is there a way to instruct Slicer to use one or two MMU slots to only print infill? Wouldn´t that be an efficient way to get rid of leftover filament?

Kind Regards,

Gerhard

This topic was modified 2 months ago by Gerhard Epple
Posted : 02/03/2025 9:33 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Print Infill with Leftover Material/i3+MMU2

Hi Gerhard, 
Yes you can define a MMU Filament for the infill

there are settings for both normal infill, and solid infill. 

Please be aware, if you use filament for infill, that is not needed in the general print, then it may change the aparrent colour of the perimeters and top and bottom layers, it will also slow down the print with additional filament changes and the purge tower will be larger, because there needs to be more space for additional colours where the infill changes, 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 : 03/03/2025 1:29 am
FoxRun3D
(@foxrun3d)
Illustrious Member
RE: Print Infill with Leftover Material/i3+MMU2

Feels a lot more time-consuming than just chucking the leftover filament 🙂 

Seriously, I do get the sentiment of trying to use up filament. This is just not how I would do it, for the reasons Joan mentioned. I usually print a bunch of little things, like filament clips, sample spools, etc. from leftovers.

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

Posted : 05/03/2025 2:15 am
Gerhard Epple
(@gerhard-epple)
Member
Topic starter answered:
RE: Print Infill with Leftover Material/i3+MMU2

Hello again,

 

Thank you very much for help and your comments. It is certainly useful to know where to switch it on, and it looked like a good idea. But I´ll stay away from that, I reckon. I have indeed a lot of small brackets and holders to print in the upcoming months and use up the filament for that purpose.

Kind Regards,

Gerhard

 

Posted : 08/03/2025 10:35 pm
Diem
 Diem
(@diem)
Illustrious Member

Or use the SpoolJoin function with nominally monochrome parts for which colour doesn't matter. The printer will automatically switch to the next filament in line as each short length runs out.  This only works if all the filaments require the same printing parameters and you wind up with unpredictably striped parts but it's a great way to reduce waste.

Cheerio,

Posted : 09/03/2025 7:47 am
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