Hi,I need to finish a mechanism to throw the ping-pong ball, or shoot the ball indoor (in the room), i.e. say for 5 meeter max in distance and 2 meter height max.
Any other constraints? Do you need to be able to aim it or control the speed? Is it single shot or does it need to be able to fire multiple balls? Any restrictions on size, weight, power supply etc?
Look at putt return devices. It's just a solenoid that kicks the ball. You could put a solenoid in a piece of PVC pipe.
I wonder why this guy is wearing a helmet.