Is this 3D model free to download?

Yes, A Better Center & Tenon Marking Guide 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 IJoS, 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.

A Better Center & Tenon Marking Guide 3D printable model by IJoS

A Better Center & Tenon Marking Guide photo 1

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A Better Center & Tenon Marking Guide

Source: Thingiverse by IJoS

The A Better Center & Tenon Marking Guide is a free printable 3D model from Thingiverse by IJoS. Several years ago, I saw a center finding gauge based on parallel arms, but at $200-$450, I couldn't bring myself to do it. 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 2026-10-08 License: CC-BY · commercial OK Category: Tools & Workshop

Tags: center finder, hand tools, mortise, tenon, woodworking, woodworking tools

About this model

Several years ago, I saw a center finding gauge based on parallel arms, but at $200-$450, I couldn't bring myself to do it. Now that I can, I decided to prototype my own. At some point, I will add an edge guide to this and probably a doweling attachment. The tenon marking template is 1/2", but I'm including the .STEP so you can make your own sizes. Sorry, but it's not currently parametric. All threads are ANSI (SAE) because that's the easiest threading for me to get.

Frequently asked questions

Is this 3D model free to download?: Yes. A Better Center & Tenon Marking Guide 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 IJoS.
Who made this model?: Designed by IJoS, 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.