Filament buffer for Original Prusa i3 Multi Material upgrade 3D printable model by Michal Fanta

Filament buffer for Original Prusa i3 Multi Material upgrade

Source: MyMiniFactory by Michal Fanta

The Filament buffer for Original Prusa i3 Multi Material upgrade is a free printable 3D model from MyMiniFactory by Michal Fanta. This filament buffer is placed between filament spool holders and Multi Material Upgrade for Original Prusa MK3/S. You can download the STL file from the original listing below and print it at home.

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30 saves Source: MyMiniFactory Updated 2026-09-06

Tags: filament, prusa, multi, buffer, multimaterial, MMU

About this model

This filament buffer is placed between filament spool holders and Multi Material Upgrade for Original Prusa MK3/S. Prevents tangling of returning filaments during color changes in multicolor prints. It can be placed on a table or mounted on a wall. Accessories: 4x Neodymium magnets - cylinder 5mm x 5 - 10mm 2x M3 screw with cup head 18-28mm 5x M3 screw with cup head 12-18mm 5x PTFE tube 15mm 4x Sticking foam pads 25mm (optional)

Frequently asked questions

Is this 3D model free to download?
Yes. Filament buffer for Original Prusa i3 Multi Material upgrade is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?
The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Michal Fanta.
Who made this model?
Designed by Michal Fanta, published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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