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What are the Core One's parts printed from?  

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designerei
(@designerei)
Member
What are the Core One's parts printed from?

Currently building my Core One and asked myself what filaments prusa uses to print the parts from. Especially the parts on the extruder itself (like the covers etc) look a bit grayish... are these fiber filled filaments used for these parts? anyone has more Info about it or an Idea where to look it up? Would be interesseting to know in case I have to repair some things...

Posted : 02/01/2026 11:23 pm
mark
 mark
(@mark)
Reputable Member
RE: What are the Core One's parts printed from?
Posted by: @designerei

Currently building my Core One and asked myself what filaments prusa uses to print the parts from. Especially the parts on the extruder itself (like the covers etc) look a bit grayish... are these fiber filled filaments used for these parts? anyone has more Info about it or an Idea where to look it up? Would be interesseting to know in case I have to repair some things...

If you look at the upgrade kit:

https://www.printables.com/model/1486513-prusa-core-one-to-core-one-upgrade-community-versi

Most parts are PETG, but the hot parts are PC-CF. I have had experience with stuff used in very hot areas and even PETG gets soft. Regular PC has worked well. PC-CF is even better.

I bought the kit and two rolls of filament. The shipping is about the same. The kit comes with some replacement hardware that you would have to find yourself. And, of course, you get the plus sticker.

Regards,

Mark

Posted : 02/01/2026 11:45 pm
hyiger
(@hyiger)
Noble Member
RE: What are the Core One's parts printed from?

If you can't find Prusament PC-CF (it's often sold out), those parts can be printed in PC Blend or ABS/ASA as well. 

Posted : 02/01/2026 11:59 pm
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