Ball run with a flipper to launch the ball.

Is is surprising how powerful a simple PLA flipper can be.

See YouTube video: https://youtu.be/LG5LbuRqiiI

This model requires a 11mm or 7/16inch ball bearing (not included). Available from many places including:

https://www.amazon.co.uk/11mm-Chrome-Steel-Ball-Bearings/dp/B002SS16QY

https://www.amazon.com/Inch-Chrome-Steel-Ball-Bearings/dp/B01AX1MSKU

The model is designed to be printed without supports and to be assembled without the need for glue or additional parts (except the ball).