ConclusionĪ catapult may be a bit difficult to design and construct but no doubt this is a good family project that you can do in a weekend. Add a payload to your cup, wind your broomstick cranks, release the catch and fire to launch the object to the air. Turn the handles to create torsion in the rope. Place an object in the basket to arm your catapult and apply torsion.
HOMEMADE CATAPULT INSTALL
Let the arms restfully back in the launching position this way you can tell where is the best place to install your catch.
As you twist your handles, the torsion of the rope will make the throwing arm ascend until its tension holds it near the cross brace. Knot the end of the cord to the side of the arm. Loop the rope around the second handle, and then take it back through the frame to the first handle. Lace about 20′ of rope around a broomstick handle, then take it this to the hole in the right side of the base, through the hole drilled in the arm of the catapult, to the other side of the base and back to the second broomstick handle. Assemble everything using long screws to ensure your frame is sturdy. Do this in the same way you constructed the right side.Ĭonnect the left and right sides with the base of the triangle and base of the 36″ 2×4 forming the bottom of the base. Next, construct the left side of the base and fasten the other triangular plywood piece. This creates one base leg of the catapult.
The diagonal will be approximately spanning the distance in between the two ends of each 2×4 plank. The base will be parallel with the 36″ plank. The 18″ side of the plywood will be vertical to the 36″ plank.
Screw these planks of wood in place.Ĭonstruct the plywood triangle. Place your 18″ 2×4 at a right angle to the 36″ piece at 15″ from the end of the 36″ piece.
HOMEMADE CATAPULT HOW TO
This guide will show you how to make a catapult out of wood. It is the third-generation of his original launcher, the Chucky, having evolved from wood to a steel frame with hydraulics.This is a fun and unique project that you and your family and friends will surely enjoy. His chunkin’ weapon of choice? The C-3, a device Collins believes to be his g reatest punkin’ chunkin’ machine yet conceived. Now, all manners of inventors, physicists and engineers gather in Delaware each November in front of over 100,000 fans and onlookers and the event is broadcast on national television.ĭan and his team of inventive friends will be featured on Science Channel and Discovery Channel documentaries that air tonight and will rebroadcast Thanksgiving Day. The punkin’ chunkin’ arms race has been accelerating since 1986 back when the contest began and pumpkins were thrown by hand at a barbecue.
“Throwing a pumpkin one mile (5280ft) has not yet been achieved by any machine or cannon at the Chunk, and remains the ‘Holy Grail’ of the sport,” says Collins. Now, Dan Collins, who works in the Cell Technologies group at GE Healthcare, is attempting to outdo them both by catapulting a pumpkin over a mile to break the all-time record at the Annual World Championship Punkin’ Chunkin’ contest. Roger Bannister broke the four-minute mile mark, and Jim Hines was the first to run a sub-10 second 100-meter dash.
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