Is this 3D model free to download?

Yes, 20mm Plastic T-Slot 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 ProtoParadigm, 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.

20mm Plastic T-Slot

Source: Thingiverse by ProtoParadigm

The 20mm Plastic T-Slot is a free printable 3D model from Thingiverse by ProtoParadigm. 20mm Plastic T-Slot - Rev 2 Completely redesigned; the new beam prints faster and is stronger both against deflection and torsion. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

3,396 saves Source: Thingiverse Updated 2026-10-17

Tags: 20mm, Plastic, T-Slot

About this model

20mm Plastic T-Slot - Rev 2 Completely redesigned; the new beam prints faster and is stronger both against deflection and torsion. UPDATE: Added DXF of Profiles. Naming convention is [dimensions]-[bolt size]-[Wall Thickness]-[Multiplier]. We are starting to prefer 1pt6 (1.6) wall thickness profiles and find printing them No Infill, 1 Extra Loop, No solid Layers, with a trace thickness of .8mm results in a quick and adequetly strong beam. These beams are being designed as the main structural component for a 3d printer though arguably they are of more use as a general hobby framing and mounting set. That said they are designed with both printing and commercial extrusion in mind. If printed in ABS, they can be solvent welded with the aid of a T-Slot Welding Jig and ABS Glue . A center hole in…

Frequently asked questions

Is this 3D model free to download?: Yes. 20mm Plastic T-Slot 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 ProtoParadigm.
Who made this model?: Designed by ProtoParadigm, 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.