Spiral Nut

I designed this model using SelfCAD software. SelfCAD is a browser-based 3D modeling and sculpting software that allows one to model, sculpt and print all under one program. It's easy to use yet powerful and it's free for students and educators.
Visit the following sites to learn more on how to design complex models in SelfCAD:

Youtube Channel: https://www.youtube.com/selfcad

Step By Step Instructables: https://www.instructables.com/sammy50

Website URL:https://www.selfcad.com

Blog: https://www.blog.selfcad.com/