Is this 3D model free to download?

Yes, Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by BigBrain3D, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers 3D printable model by BigBrain3D

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers photo 1

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers photo 2

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers photo 3

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers photo 4

Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers

Source: Thingiverse by BigBrain3D

The Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers is a free printable 3D model from Thingiverse by BigBrain3D. Now supports Mosaic Canvas!!! During MultiColor 3D printing the default way of purging the old color during transition between colors is to use a purge block or wipe tower. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

1,126 saves Source: Thingiverse Updated 2026-10-09 License: CC-BY-NC-SA · non-commercial 2 makes Category: 3D Printer

Tags: mmu, mmu2, mmu2s, mosaic palette, Mosaic Palette 2, multi-color, Multicolor, multicolored, multicolors 3D print, multicolor 3D print, Multicolour, Multicoloured, multicolours 3d print, Original Prusa i3 MK2, Original Prusa i3 MK3

About this model

Now supports Mosaic Canvas!!! During MultiColor 3D printing the default way of purging the old color during transition between colors is to use a purge block or wipe tower. The main problems with purge blocks are that they must be printed on every layer even if there are no color changes, and they take up space on the print bed. We’ve designed a new Retractable Purge Mechanism. It mounts to the side of your 3D printer and works with any slicer (i.e. PrusaSlicer, Mosaic Canvas, Slic3r (PE), Simplify3D, SimplyColor3D, Cura, etc.) to reduce waste and decrease purge time. With our retractable purge mechanism, material is only purged when a color change happens which mean fewer purges and faster prints. The retractable arm allows it to work on printers where the nozzle cannot reach past the edg…

Frequently asked questions

Is this 3D model free to download?: Yes. Retractable Purge Mechanism, for MultiColor 3D printing, Replaces purge blocks & wipe towers is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by BigBrain3D.
Who made this model?: Designed by BigBrain3D, published on Thingiverse. 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.