he started trying to do a 3D model. His final product though, was made by creating two views in Inkscape. They aren’t exactly orthographic projections of the final product, but the idea is similar.

You can set up your rendering viewport for an orthographic view right in the Enscape window. Notice the projection options in the top right corner of the screen. If you don’t see the buttons ...

High-speed, high-quality realistic renders, compatible with major CAD and 3D modeling software ... and techniques. The orthographic view effect enables parallel projection, allowing you to ...