Download and use the following files as templates to create your own STEMFIE parts and projects. (Right-click and choose: "Save as")
Blender - FreeCAD - OpenSCAD - Tinkercad
Blender
Blender is the free and open-source 3D-creation suite you can use for 3D-modelling, rendering and animation.
FreeCAD
FreeCAD is an open-source general purpose parametric 3D CAD modeler.
OpenSCAD
OpenSCAD is a 3D-compiler that reads in a script file describing the object and then renders the 3D model.
Tinkercad
Tinkercad Tinkercad is a free, online 3D modeling program that runs in a web browser.