@MarkRober created a 3D printed ball that is nearly impossible to hit. The secret is a brass slug that gets released in mid-air, making the trajectory impossible to predict.
Join our newsletter
Our newsletter is free & you can unsubscribe any time.
@MarkRober created a 3D printed ball that is nearly impossible to hit. The secret is a brass slug that gets released in mid-air, making the trajectory impossible to predict.