Thread Solid Modeler

ThreadSolidModeler is an Autodesk Inventor add-in that turns existing cosmetic threads into fully modeled 3D geometry.

The project builds on ThreadModeler by coolOrange / Philippe Leefsma and continues it for Autodesk Inventor 2026.

The add-in works on selected ThreadFeature objects in a Part document. It exposes two commands in the Part ribbon:

• the ISO workflow
• the 3D Print workflow

The ISO workflow opens a modeless dialog to choose the sketch template and the pitch offset. The 3D Print workflow starts from the selected thread geometry, pre-fills a trapezoidal profile based on the nominal diameter, and lets you tune the dimensions manually. It relies on part of the original thread characteristics, but lets you adjust the parameters so the output stays printable and usable. In particular, it lets you add clearance to match the accuracy of the 3D printer you are targeting.

Main view Progressive start Assembly clearance Alternate view

The model is then built from the template or the dedicated profile, and the original cosmetic thread is removed by suppressing the feature.

The standard generation path supports both standard and tapered threads. The default template is ISO Template.ipt, with BSW Template.ipt also shipped in the bundle.

The project is complete and the repository is available on GitHub.