A real problem first
Every unit opens with something students can hold: a lid, a hinge, a bracket that cracked. They want to know why before they touch the software.
Build it the way industry does
They model the part in Fusion, step by step, with the same tools and the same habits an engineer uses at work.
The printer is the grader
Parts print overnight and get tested in class. If the lid jams, the model is wrong, and students can see exactly where.