Probably the most extensive and useful for anything van related. 3D Warehouse: Sketchup’s library (only compatible with Sketchup).Here is a quick list of 3D models libraries: Thanks to the growing community of 3D designers, it’s possible to re-use existing models and save some time. It’s getting quite popular with the 3D printing community, because of the free licence for hobbyist (that might change in the future though). Autodesk Fusion 360: A bit more advanced, but still accessible.Large library of models shared by the community. Sketchup: Free and relatively easy to learn.Here is a short list of affordable 3D CAD design softwares for hobbyist: There is a steep learning curve of learning 3D design, but it can be fun and useful (especially with 3D printing getting more and more accessible, it’s now possible to print functional part for real world usage).