#GOATCatapult
Me and my group are making a catapult, 4 wheels, wooden, rope and a bucket as the payload.
http://www.instructables.com/id/How-To-Build-A-Catapult/
Here is a link (AVAILABLE ONLY TO REGISTERED USERS) to the instructions PDF document.
We’re going to need
- 9 – 8′ two-by-four’s
- 1 – 12′ four-by-four
- 3 – 8′ four-by-four
- 50′ of surgical tubing
- Fiberglass windsurfing pole or a large section of steel pipe (Fiberglass pole preferred)
- 20′ thick nylon rope
- 1- 4 ft section of 4″ diameter ABS pipe
- 1 -4 ft section of 2.5″ diameter ABS pipe
- 2 – 4″-2.5″ step down ABS adapter
- T-adapter for ABS pipe
- ABS cement
- 2″ X 4′ aluminum pipe
- “S” hook
- “U” bolts and nuts
- Large Eye bolts
- 12 – 6″ lag bolts
- 3 – 5″ carriage bolts, nuts, and washers
- Assorted deck screws (at least 3″ long)
Tools we’re gonna need
- Chop Saw
- Reciprocating saw
- Drill Press
- Assorted Drill Bits (including large hole-saw or adjustable spade bit)
- Drill
- Wrenches
- Welder (if using steel pole)