I'm not sure if this is the right category, or proper name. Anyhow, I'm looking for plans on constructing a 'backdrop'. By that I mean the device the holds the target, and has a sheet of thick steel behind it at a 45 degree angle to deflect the ball into the ground below it. I remember my Dad had made one years ago out of 4x4s. I can come up with something if needed, but was wondering if there are posted plans anywhere. Thanks much.