About this 3D model
This is a pellet trap for BB guns. The triangle point of the target spinner should( in theory) catch in the small slit on the front plate when the small cicular target is hit. The big rectangular target can then be shot to reset the trap back to the original cicular target. The targets can easily be exchanged for your own designs (they just need a small slit in them). This is my entry for the Make magazine competition: http://blog.makezine.com/archive/2010/04/makerbot_giveaway.html EDIT: I have updated the model (STL files only) so that the BB's will not be deflected back towards the shooter, when firing through the bottom target.