Submitted by Powell Middle School for the Instructables Sponsorship Program.
Step 1: Parts
3" hinge (I bought a door hinge from Walmart with the screws)
8' of 2x4
12 decking screws
4 eye bolts
3' 1/4 inch rope
90 degree angle support
Tuna Can or other small 3" diameter can
phillips screw driver bit
3/8 inch drill hole bit
Step 2: Create the base
The 5' 9" section will be the base.
Step 3: Attaching the Arm
Screw the two foot section of 2x4 onto the other side to of the hinge.
Step 4: Front Arm
Step 5: Attaching the can to throw and the eye bolts
Attach an eye bolt on the bottom of the throwing arm directly below the can, and another one on the direct opposite side of the board.
Attach one more on the back end of the board in the center .
Attach the final eye bolt on the front end at the bottom of the front support arm.