Is this 3D model free to download?

Yes, 30x30 aluminium profile MGN12 linear rail GT2 6mm belt drive stage 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 Piec, 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.

30x30 aluminium profile MGN12 linear rail GT2 6mm belt drive stage

Source: Thingiverse by Piec

The 30x30 aluminium profile MGN12 linear rail GT2 6mm belt drive stage is a free printable 3D model from Thingiverse by Piec. Simple linear stage design based on 30x30mm profiles and 12mm guide rails. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

30 saves Source: Thingiverse Updated 2026-11-01 License: CC-BY · commercial OK Category: Decor & Art

Tags: 3030 extrusion, 30x30mm, aluminium 3030, aluminium extrusion, aluminium profile, cnc parts, extrusion 30x30, extrusion 30x30mm, GT2, gt2 belt, gt2 pulley, linear motion, linear rail, linear stage, MGN12

About this model

Simple linear stage design based on 30x30mm profiles and 12mm guide rails. GT2 6mm belt drive with NEMA17. Easy belt tension adjustment. Designed for 16T pulley and idler with 3mm inner diameter. Hardware: M6 bolts and t-nuts for profiles; M2 for MSW-22 endstop; M3 bolts, hex nuts and one square nut for the rest. STEP file included, feel free to modify. Belt holder design based on Prusa Bear Upgrade.

Frequently asked questions

Is this 3D model free to download?: Yes. 30x30 aluminium profile MGN12 linear rail GT2 6mm belt drive stage 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 Piec.
Who made this model?: Designed by Piec, 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.