A catapult made from LEGO 9686 Machine&Mechnism.
Leonardo da Vinci in a plastic model, I made while thinking about the catapult. You can manually load and fire using gear deceleration and pole and ratchet gimmicks.
The position of the gear can be changed so that it can transmit and disconnect the gearing power when the electric motor is turned on and off.
It's a shame that I do not like the trigger method a bit.
There are some other problems, but when you create a new one, try again.
