What kind of inventions have you come up with? What ideas are you modeling in your brain?
When I first read Tesla's writing last night, I began by just simply allowing my imagination to do a test run of building something. I first began by imagining a cylinder. I rotated the cylinder and observed the sharp edges. I didn't like that so I smoothed it out. Then I imagined a hollowed out cylinder with its edges smoothed out. How about adding a horizontal beam through it. Or maybe two? And what if they intersect. All of this I would imagine in my head.
Overall, it felt like a more versatile approach then spending hours tinkering with Freecad. I spent a bit more time coming up with models for my specific project before realizing it was 1:30 AM. WARNING: THIS METHOD WILL KEEP YOU AWAKE AT NIGHT FOR HOURS.
:)
If they some how run to fast or if someone comes to help them with a rope sudden stops and reversal should make the adventure more adventurous.
The goal is to convince the test subject it isn't worth damaging the machine. People like that have a hard time remembering what not to do.
I'm not a sadist, the machine will feed them however long they are stuck there.