SkyHooks

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.

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:

The curved design which I grew up with gives a very direct downward pressure as well as some elevation before the hover.

The straight design I came across while researching if this was something worth making in plastic. The lever end is about .5cm from the lever end of the curved. The downward force feels different…. maybe a physics question for the class… are the pressures the same? You can see a sample of that straight model design and its back story here https://www.e-scoutcraft.com/science/sky_hook.html

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 te