Share this project

Done

Share this project

Done
Snap together a fully functional catapult!
Snap together a fully functional catapult!
630 backers pledged $47,719 to help bring this project to life.

About

Catapult Kits - The ultimate desktop toy (Trebuchets Added!) project video thumbnail
Replay with sound
Play with
sound

Catapult Kits - The ultimate desktop toy (Trebuchets Added!)

$47,719

630

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

5667f8b0d170b6760e34c0968f777236 original.jpg?ixlib=rb 1.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

Build your very own desktop catapult! These kits make a great 1:24 scale model or a fun office toy. Each kit comes with everything you need except a hammer and scissors. The parts are CNC machined to insure a precise fit. The baltic birch wood is sanded, stained, then laser cut. The brass pins and wheels are machined from solid brass. 

Forget the glue!

These catapults are designed to be assembled without any glue. They utilize dowel pin and mortise joints for assembly. Simply match the pieces. Drive the brass pins in. Then snap together.

This picture shows a brass dowel pin. Below it is a mortise and tenon joint. No glue!
This picture shows a brass dowel pin. Below it is a mortise and tenon joint. No glue!

 

Small in size, big on power

While standing only 4 inches tall, these catapults can throw objects over 35 feet! Objects that weigh around 1 gram get launched the farthest. Heavier or lighter objects, like pennies and paper wads, can be launched up to 18 feet. Making these catapults perfect for office battles! 

The design is based off Ralph Payne-Gallwey's drawings.(1848–1916)
The design is based off Ralph Payne-Gallwey's drawings.(1848–1916)

 

Data is from a catapult that has been fully winded up.
Data is from a catapult that has been fully winded up.

 

Specs

  • 1-2 hour assembly time 
  • Utilizes dowel pin and mortise joints for assembly
  • no glue required
  • Can shoot up to 36ft 
  • CNC machined solid brass parts 
  • Laser cut Baltic birch 
  • 5" x 3.5" x 4.5" (L x W xH)
  • rope powered 

Reward options 

Pick how many catapults or trebuchets you want to get. When the project is over you will have the option to choose between a stained or unstained kit. (See pictures below)

Catapults:

Stained catapult
Stained catapult

 

unstained catapult
unstained catapult

Trebuchets (added on 1/3/18)

These are improved versions of the original Trebbers kit! To see specs/info on the original trebuchet kit go here. To see what has been improved go here.

 

 

Why $14,000? 

I need $14,000 for machine upgrades, raw materials, and shipping. I also need to reach MOQ's on the CNC machined brass parts. 

International backers:

Please note that your country might have import fees or VATs. 

Risks and challenges

I have made several successful design prototypes. They all have been thoroughly tested and work flawlessly. The only difference between these and the reward ones is the manufacturing process for the brass parts.

The reward ones will have CNC machined brass parts. Whereas the prototype ones had mostly handmade brass parts. (they were done on a manual lathe in the video)

Some stuff that I still have to work on:
-Instruction manual
-package design

Learn about accountability on Kickstarter

Questions about this project? Check out the FAQ

Support

  1. Select this reward

    Pledge $35 or more About $35

    Catapult Kit

    You will receive one catapult kit.

    Less
    Estimated delivery
    Ships to Only certain countries
    229 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  2. Select this reward

    Pledge $35 or more About $35

    Trebuchet Kit

    You will receive one trebuchet kit

    Less
    Estimated delivery
    Ships to Anywhere in the world
    67 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  3. Select this reward

    Pledge $70 or more About $70

    2 Catapult Kits

    You will receive two Kits.

    Less
    Estimated delivery
    Ships to Only certain countries
    34 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  4. Select this reward

    Pledge $70 or more About $70

    2 Trebuchet Kits

    You will receive two trebuchet kits

    Less
    Estimated delivery
    Ships to Anywhere in the world
    9 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  5. Select this reward

    Pledge $70 or more About $70

    1 Trebuchet AND 1 Catapult kit

    You will receive one trebuchet and one catapult kit

    Less
    Estimated delivery
    Ships to Anywhere in the world
    229 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  6. Select this reward

    Pledge $100 or more About $100

    3 Catapult Kits

    You will receive three kits

    Less
    Estimated delivery
    Ships to Anywhere in the world
    11 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  7. Select this reward

    Pledge $100 or more About $100

    ANY 3 Kits

    You will receive three kits of your choice.
    At the end of the campaign you will have the option to choose.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    13 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.
  8. Select this reward

    Pledge $130 or more About $130

    ANY 4 Kits

    You will receive four kits of your choice. At the end of the campaign you will have the option to choose.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    32 backers
    $
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.

Funding period

- (30 days)