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[Use Case Study] Multi Diameter and Material Print  

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TracerHD
(@tracerhd)
Member
[Use Case Study] Multi Diameter and Material Print

Hi,

Does anyone tryied out to print something like this:

Extruder 1: Pla for supports 0.4

Extruder 2: Pva for Support connection 0.4

Extruder 3: Pla for infill 0.8

Extruder 4: Pvb for perimeter 0.25

 

What do I Try to do?

Printing a figure, use soluable supports, Smooth the figure with ipa, and reduce Time for the print.

 

Does this work? Dies anyone tryied that out or can try that out? I guess multi diameter nozzles could be a Problem.

 

If this works, are There more options to improve the workflow?

Thanks for Your advice  🙂

This topic was modified 2 weeks ago by TracerHD
Posted : 06/04/2025 9:58 am
BaconFase
(@baconfase)
Reputable Member
RE: [Use Case Study] Multi Diameter and Material Print

Can be done.

Official guide: https://help.prusa3d.com/article/experimental-printing-with-different-nozzle-diameters_821176

Link in my signature has the slightly out of date unofficial guide but with a little more detail on some things.

Setup your printer hardware and settings through the LCD menus. Setup the Printer profile in the slicer to match. Setup your extruder assignments in the Print settings. Leave your model set to 'default' extruder in the Plater.

One slight limitation is you'll need to pick a base layer height that can be printed well for most of the model. .25 and .4 nozzles have a good overlap, so that won't be an issue. But for example, the .8 nozzle might be too big to reliably print at a .15 layer height which is the 'soft max' for a .25 nozzle. So you might not be able to use the .8 nozzle and .25 at the same time without the 'infill combine' feature. And you'll have to do a little bit of maths to set that up optimally.

You'll also need to pick a single bed temperature. PLA's like it around 60; looks like PVBs are around 75. You'll have to experiment to see which has more room to give otherwise one, the other, or both may lose bed adhesion.

I've also never printed PVA/PVB, so I don't know how well it interacts/bonds to PLA. So you may want to do some tests first. If they don't play well then you probably want to stick to single filament supports rather than a separate material for just interface.

Ounce of due diligence can save you a pound of filament.

XL-5T, MK3S MMU3 || Printing with multiple nozzle-sizes: Official Guide, Unofficial || PrusaSlicer Fork || Other advanced slicer tactics || TPU

Posted : 08/04/2025 1:13 am
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TracerHD
(@tracerhd)
Member
Topic starter answered:
RE: [Use Case Study] Multi Diameter and Material Print

Thanks for your Help! 🙂 the point not to go too wide with the diameter range is good. 

Can anyone show a project in that way or can try it out?

Posted : 12/04/2025 6:32 am
BaconFase
(@baconfase)
Reputable Member
RE: [Use Case Study] Multi Diameter and Material Print

https://www.printables.com/model/1263219-example-multi-diameterheightmaterial-print

Cant say it will print well since I didn't really take things like temperature differences (bed temp) into account, but it sliced so it will make the XL print.

XL-5T, MK3S MMU3 || Printing with multiple nozzle-sizes: Official Guide, Unofficial || PrusaSlicer Fork || Other advanced slicer tactics || TPU

Posted : 12/04/2025 9:31 pm
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