Happy with your Prusa printer? Earn $30 when you recommend us to your friend, family or shop with the updated Prusa Rewards Program. PS: They will get an extra Prusament spool!

Prusa Core One / MK4 Nextruder Magnetic Poop Holder V2

Make filament changes even easier with Version 2 of the purge waste holder – improved alignment, and handling!
74
232
24
1355
updated December 8, 2025

Description

PDF

Simplify your filament change process with this upgraded and practical solution for managing purge waste.
Version 2 introduces improvements based on user feedback:

Always properly aligned – thanks to a revised design that ensures perfect positioning every time over Nextruder Thumb Screw - Even easier to handle – with refined ergonomics for smoother operation.

Now supports up to three 8x3 mm round magnets:
• Two for secure and temporary mounting on the Nextruder Thumb Screw during filament swaps
• One on the opposide for storing the holder directly on your printer when not in use. Always ready and within reach.

As before, it keeps your workspace clean by collecting purge residue – often referred to as “poop” – in one convenient spot, avoiding those long, stringy filament strands that never seem to fit in the trash can.

Printed in PETG for durability. PLA also works, sticking is no problem. No support needed! But don't forget to remove the tool befor printing ;)

Post your makes and share your feedback – your input helps improve future designs.

Happy printing!

I added a 10x4mm Magnet Version. Not sure if it's working, because I don't have this type of Magnets. Please let me know. maybe it's to strong. Let me know your other diameter wishes.

Tags



Model origin

The author marked this model as their own original creation.

License