Is this 3D model free to download?

Yes, Serious Clamp It Square ! (3 sizes) 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 J-Max, 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.

Serious Clamp It Square ! (3 sizes) 3D printable model by J-Max

Serious Clamp It Square ! (3 sizes) photo 1

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Serious Clamp It Square ! (3 sizes)

Source: Thingiverse by J-Max

The Serious Clamp It Square ! (3 sizes) is a free printable 3D model from Thingiverse by J-Max. If you build things, squares are a must have tool. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

9,509 saves Source: Thingiverse Updated 2026-10-26 License: CC-BY-NC · non-commercial 17 makes Category: Tools & Workshop

Tags: clamp, diy, hand tools, serious, square, tool, tools, woodwork, woodworking, woodworking tools, workbench, workshop

About this model

If you build things, squares are a must have tool. What if, instead of checking if your works is dead square, clamping it directly to a square for a good result : first time, any time ? You can't always find Clamp It Squares in your local store. Especially in Europe. And if you finally find some, serious models will cost you about 10 bucks each ! The Clamp It Squares I designed are actually available in three sizes : Large, Midi and Mini. They will be useful in various kind of jobs, from light DIY jobs to serious furniture making. One last advice : don't over-tight the clamps, as the job is well done, no joinery needs extra pressure. Edit : Added a new size : the Clamp It Square Mini, for smallest jobs, expecialy designed for spring clamps. Edit : If you're looking for holders for your cla…

Frequently asked questions

Is this 3D model free to download?: Yes. Serious Clamp It Square ! (3 sizes) 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 J-Max.
Who made this model?: Designed by J-Max, 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.