The Catapult Plan is located at the bottom of this page:
If you came to this webpage directly from a link or a search engine: This Catapult Plan is the plan that accompanies the tutorial on how to make a catapult. The tutorial takes you through all the steps, complete with lots of pictures, on how to make the table top troll catapult. You can find the assembly tutorial here: The Table Top Troll Catapult. (There is also a video of the table top troll catapult firing off)
I have also put a larger version of this catapult plan on a clean webpage so you can easily print it out. Here
About the Catapult Plan
There are a couple of things I want to point out about the plan:
- The Red Marks are screws or nails and glue. This shows how the different parts of the catapult are affixed to each other
- Dotted Lines - if you are not familiar with blueprints the dotted lines represent parts that are behind other parts.
- The Stopping bar - There is a wooden cross piece on the catapult where the arm hits up against after you release it. This bar affects the trajectory of the projectile you fire. If you want your projectile to go in a higher arc then move this stop bar down; and of course if you want a lower trajectory on your projectile then bring the stop bar up.
- The Pivot Bar - I used the axle from a toy car and it worked great. When installing the pivot bar insure it is high enough up so the swinging arm does not touch the table or floor.
Here is the Catapult Plan:
Want to build a bigger, better, more powerful or fancier siege engine? There are some great books available to you. These books, available at Amazon.com, will help take your trebuchet or catapult building to new heights! Pun intended!
The Art of the Catapult: Build Greek Ballistae, Roman Onagers, English Trebuchets, and More Ancient Artillery
Whether playing at defending their own castle or simply chucking pumpkins over a fence, wannabe marauders and tinkerers will become fast acquainted with Ludgar, the War Wolf, Ill Neighbor, Cabulus, and the Wild Donkey-ancient artillery devices known commonly as catapults. Building these simple yet sophisticated machines introduces fundamentals of math and physics using levers, force, torsion, tension, and traction. Instructions and diagrams illustrate how to build seven authentic working model catapults, including an early Greek ballista, a Roman onager, and the apex of catapult technology, the English trebuchet. Additional projects include learning how to lash and make rope and how to construct and use a hand sling and a staff sling. The colorful history of siege warfare is explored through the stories of Alexander the Great and his battle of Tyre; Saladin, Richard the Lionheart, and the Third Crusade; pirate-turned-soldier John Crabbe and his ship-mounted catapults; and Edward I of England and his battle against the Scots at Stirling Castle.
Working Wood Catapult DIY Kit, 6" X 5" X 10"
A fun, wooden catapult DIY kit for all ages to enjoy. Every piece is already pre-cut for you as you will not need to make other hard drilling work. All you need to do is assemble following the instruction and you will have a working catapult in no time. You may enjoy it with another friend or family to see this medieval wonder comes to life.
Leonardo DaVinci Catapult Kit
- Comes complete with all pieces pre-cut and ready to assemble
- Glue included
- Suitable for beginner model makers
- Easy to understand instructions
 If you are looking for something easier to make you might want to try my project on making a popsicle stick catapult. Fast, easy and fun project! Goes great with the paper medieval castle. Make a popsicle stick catapult
Storm The Castle Catapult Game - Build a Popsicle stick catapult and hurl paper balls at the castle. How to make the Game and the catapult are here
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