These were common teaching props in physics and geometry when I was growing up. They never cease to amaze young people the first time they see them in action.
https://www.youtube.com/shorts/u-W-XJE-Hps
I was working on my Dad's bench and saw a wood skyhook that he used to make for his classes. And now here it is in plastic for you too enjoy.
Two models to choose from:
I took the liberty off tuning the design for plastic vs the wood originals. Plastic is slippery so on the straight arm I added some texture. Both have a small ball at the end to aid in holding it… and on the curve model it blunts what would have been a point. I slimmed down the arch thickness on the curved model since we did not need all that material in plastic. The circles are aesthetic so I hollowed them to reduce their weight which was causing the hover to sit lower.
Printing
Great print at 3mm layer with a .4mm nozzle. No super small details to maintain.
The straight handle has less contiguous surface area so make sure your first layer goes down well.
Operation:
Cautions:
Credits:
The author hasn't provided the model origin yet.