Here is a simple test of 3D-printable gears which are compatible with the STEMFIE construction set toy. Please check out the link below for more information. https://stemfie.org/13-blog/32-preview-of-stemfie-gears.html
This toy car is easy to 3D-print and quick to build. It is the first project demonstrating the new and fully 3D-printable educational construction set toy; you can download from https://stemfie.org.
