and through a shaft another set of pulleys to the drone motor. The bracket to hold all this and the very large pulley on the wheel are all 3D printed in PLA-carbon fiber mix. When it’s assembled ...

And then you see something like an infinitely variable transmission built from nested pulleys, and you realize ... allows the motor to stay at peak efficiency while smoothly changing the gear ...

DIY is an illness, so I decided to add a motor to the hand crank. :) I fabricate a v-wheel pulley on the mill (I really need a lathe!), which will be driven by a modified "hoverboard" hub motor.

We probably had the first electric-start, steel-wheeled Fordson on the planet. All that came to mind from reading 100 Years ...

This video demonstrates testing the strength of LEGO gears and pulleys by aiming to lift 200 kg using a single LEGO Power Functions Medium Motor. The experiment explores the maximum lifting force ...