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Modern super magnets replace the ancient torsion engine in a desktop catapult to get an awesome cubicle warfare machine!
Modern super magnets replace the ancient torsion engine in a desktop catapult to get an awesome cubicle warfare machine!
183 backers pledged $8,513 to help bring this project to life.

About this project

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$8,513

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This Kickstarter project is for the final design and production of a laser-cut desktop Magnetic Catapult kit. The Magnetapult is capable of accelerating a projectile at over 16 g's * to a distance of over 40 times the length of the firing arm. 

(* See FAQ to find how we came up with these values.)

The aluminum Magnetapult. Photos updated when the prototype is complete:

The Mini Magnetapult: Fits in the palm of your hand, but packs a big punch! (See video in update 6.)

The etching on the Mini Magnetapult. (Hard to find room!):

The Standard Magnetapult, locked and loaded with a ping pong ball:

Reward Contents

The standard kit will come with everything needed to build and use the Magnetapult, including laser cut parts, supermagnets, chicago screws to hold it together, flux concentrators, an instruction manual, and two projectiles. You supply the (hopefully moving) targets!  I'll update this page when I've finalized the projectiles.

Unique Kickstarter Version Only Etching!

Show how cool you are by showing that you backed the Magnetapult on Kickstarter, instead of getting it retail.

Now with N52 Neodymium Magnets

I wasn't satisfied with the original N42 Neodymium Magnets so I bumped it up to the strongest currently available N52 Neodymium Magnets to maximize the acceleration and launch distance.  Please see the Strong Magnet warning in the FAQ!

Metallic Flip Stabilizer and Flux Concentrator

This helps prevent the super magnets from somehow pulling out of their cages and flipping around.  As a nice side effect, they act as a magnetic flux concentrator, making the pushing side a bit stronger.  A small extra cost for a big improvement in safety, and slight improvement in acceleration.

Streamlined construction

Not only is the Magnetapult precision laser cut, I've decided to use Chicago Screws to give it a nice streamlined look.  As an added bonus, the screws are the same silvery shade as the supermagnets.

Varying launch angles

I've played around with launch angles and trajectories, and added a few arm stops so you can vary the launch angle and distance.

Stability Improvements

Release the arm without holding down the Magnetapult and the enourmous magnetic forces will flip the Magnetapult around.  Not only does this result in a shorter launch distance, but it can also damage the Magnetapult.  To stabalize the Magnetapult I've added a pair of legs on each side, and a hole underneath the arm to make it easier to hold down the Magnetapult with one hand.

What's left?

I'm currently waiting for samples from different companies for the projectiles.

What will the money be used for?

BULK! The more money I get, the better bulk prices I can get.  I plan to spend all the money from this kickstarter project on buying enough material for as many kits as I can.  The first ones will go to my great backers, of course!

Open Hardware?

Once the Magnetapult Project is fully Launched (pun intended), I will be creating an instructables with plans on creating your own Magnetapult from scratch under a Creative Commons Share Alike Non-Commercial Attribution license.

Questions about this project? Check out the FAQ

Support this project

  1. Select this reward

    Pledge $1 or more About $1.00

    A hearty THANKS! and your name on the backers page for the Magnetapult web page! Every dollar counts!

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    2 backers
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  2. Select this reward

    Pledge $20 or more About $20

    The Mini Magnetapult: One complete Mini Magnetapult. Shoots proportionally farther than his big brother... Perfect for that budding scientist in your family! (Canada/Mexico - add $10, other, add $15.)

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    19 backers
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  3. Reward no longer available

    Pledge $30 or more About $30

    Early Backer: You get the standard Magnetapult kit (below) at a special price for being an early backer! International shipping (Canada/Mexico - add $10, other, add $15.)

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    Reward no longer available 100 backers
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  4. Select this reward

    Pledge $40 or more About $40

    The Standard: One complete Magnetapult kit cut from 1/8" MDF stock. Attack begins in 10 minutes! International shipping (Canada/Mexico - add $10, other, add $15.)

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    23 backers
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  5. Select this reward

    Pledge $70 or more About $70

    The Metal Machine: This is one complete Magnetapult, cut out of 1/8" aluminum. Water, fire, and drop resistant all one one gorgeous package! (We don't promise your toes will survive the drop though!) International shipping (Canada/Mexico - add $10, other, add $15.)

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    19 backers
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  6. Select this reward

    Pledge $75 or more About $75

    The One on One: Two complete Magnetapult kits so you can fight against your buddy! International shipping (Canada/Mexico - add $15, other, add $20.)

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    13 backers
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  7. Select this reward

    Pledge $120 or more About $120

    The Custom Metal Machine: This is a numbered, limited edition aluminum Magnetapult. Each one comes with a thank you marked into the aluminum with your name on it! International shipping (Canada/Mexico - add $20, other, add $25.)

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    Limited 2 backers
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  8. Select this reward

    Pledge $120 or more About $120

    The Family Plan: All three Magnetapult's: The Standard MDF, the Metal Machine, and their little brother, the Mini Magnetapult. (Canada/Mexico - add $20, other, add $25.)

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    2 backers
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  9. Select this reward

    Pledge $140 or more About $140

    The Battle Royale: Four complete Magnetapult kits for multiplayer cubical warfare! International shipping (Canada/Mexico - add $20, other, add $25.)

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    3 backers
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Funding period

- (30 days)