Metabo (or something to cut)
assorted metal is needed also, I used some 1/2 inch rod and a 5x5 plate that were both in my garage.
These tools (or there equivalents) are available for use at TechShop
Step 1: Cutting the Metal Down
After I had all of the pieces I needed, I welded 2 washers on the top of the plate, and then welded up the frame. This allows the target to swing when it is hit, absorbing some of the impact and directing the pellet downward.
Step 2: Paint It Up How You Choose
After its dry you are ready to shoot!
Remember to be careful when operating any type of firearm, even the pellet gun, and never use it around other people or animals.