Hey, thanks for the interesting responses and ideas, everyone!
I have a pretty strong background in both fabrication and design/engineering, but as some of you have said, we all have our specialties. A jack of all trades is master of none, of course. So I'm only working on my guys in the engineering department, which is all I really am able to influence right now. Maybe after this session works (if it works) more good projects will come that also foster working together better.
I personally have cultivated a respectful relationship with my Manufacturing department, something I don't think my predecessors have done. This course will (hopefully) have the side benefit of having engineering and manufacturing people working together for a while. Those relationships should make it easier for people to check in with each other, rather than always asking me, or letting problems build up and simmer (which is what happens now).
I think that a final assembly of their parts is essential. It changes the final result from "Steve says it's good or bad" to "it really does/doesn't fit together", which is more powerful statement than any that I can make.
I don't want to "set them up to fail". I have ruled out ideas like giving them bad drawings. Too much frustration; that can't be overcome before skills or judgement have been developed. This is supposed to be a confidence-building task, not a sarcastic punishment. After this session, I'll be able to speak to them about alignment of holes, fits and tolerances etc., in a much more realistic fashion. It's all wasted if they have never held a power drill, now!
I agree with those of you who pointed out that simple tasks will take much longer than they should, so don't get ambitious.
I can allow up to 4 hours each, starting with a safety briefing and tool orientation.
I'm only thinking of parts about 6" long, 1/8" rivets, and bolts 1/4" to 3/8" diameter.
My thoughts today go like this:
Day 1: Cut an aluminum extruded channel to length. Square the cut end, break sharp edges, fillet the corners, drill 3 mounting holes.
Day 2: Cut an aluminum sheet into a square. Locate and drill 3 holes. Locate 2 bend lines. Bend 90 degree twice to make a "C".
Day 3: Turn a bushing on the lathe. Face the end. Bore the inside. Turn the outside. Part off. Re-chuck and face the end. Deburr.
Day 4: (still mulling it over... maybe a shoulder bolt? Maybe a part to press-fit the bushing into?)
Day 5: Assemble these parts. The sheet-metal and extrusion are riveted together. A bolt goes through the bushing (inside the channel flanges).
I hope to introduce measurement tools along the way: Scale, square, Protractor, Caliper, Micrometer
Tools to use:
Day 1: Hacksaw, file, deburrer, punch, drill press
Day 2: Shear, file, deburrer, punch, drill press, brake
Day 3: HSS toolbits, Center drill, Tailstock chuck, reamer, parting tool
Day 4...
Day 5: Clamps, Rivet Klecos, match-drilling by hand, bucking rivets, bolts