I have developed a ball launcher (Diameter 12.7 mm) from Geomag but I provide a ball with it.

It is composed of several parts, a spiral spring propels the ball into a channel terminated by a gun that allows you to aim.

This allows you to test your skill by shooting at targets such as dominoes.

Be careful though, as the ball is propelled with a certain force, the ball could break objects or injure!

The trigger holds a bar that is connected to the spiral spring, the ball is placed in the hole provided for this purpose.

The trigger is pulled down, the ball leaves propelled by the bar.

Follow:

https://twitter.com/fabricejeanpier

https://www.facebook.com/profile.php?id=10001048474747474701265