I love this idea. Especially beacuse I recently got into doing teaching as I was laid off last year.
I defidently think there is a need for a course. When I was getting started in 3d printing, I was interested in taking a course for it. Unfortunatly there didnt seem to be any available at that time either they didnt exist, or covid canceled them.
I would split it up.
With the Basics covering subjects like terminology, types of printers, some inital history of 3d printing, important steps when assembling a printer (make sure things are snug, square, make sure the nozzle is installed correctly), how to prepare a slicer (perhaps a run through of the different common free slicers like cura, prusaslicer and superslicer), a discussion on different types of filaments, and finally common printing problems (wet filament, nozzle clogs, over/under extrusion, bed level issues, adhesion tricks) Overall I would lean this course to being an intro to 3d printing with a basis of useing an ender 3.
For an advanced class I would go in deeper detail about how control boards work (generally anyway), how to configure firmware (maybe a course on its own for compilling different flavours of firmware), different mods to consider (linear rails, ABL, rasberry pi, different hotends), and how to print more exotic filaments such as nylon, flexables. I would lean this course onto someone who may be building a printer, or use something like a core xy, or delta.
Im a fan of PDF formats, so I can progress at my own pace, but videos would be best if this were to be offered for free. Personally I’d do this as an in house course, but im not sure how feasable that can/will be.
I really ant bring it down to 2 topics that need to be covered and hope my pints in the previous question help. I’m sure there are more points to add, but its a start.
If you want help putting this togeather i’d love to participate, I just find i need a bit of a deadline/expectation to motivate me to get things done.