High power pop slingshot, >7.5 Joules, not a toy!

High power 3D printed pop slingshot for monster hunting and target shooting with over 7.5 joules of kinetic energy and serious performance.

You want to become a hunter, slay monsters and get their loot?

Then you need the magical “pop slingshot +7.5”, which was designed by ingenious gnomes in the deep forests of germania.

Ask your local machanicus if he can use these plans to build your monster hunting weapon. Recently, the secret techniques of additive manufacturing have opened up new worlds for monster hunters!

Do you also need ammunition?  Here, I can recommend these to you:

Slingshot ammunition "you hit, roll d12 damage"

Caution

I made this kind of slingshot at elementary school from a curtain ring, tape and a balloon. The slingshots were quite popular at school until someone got a pea in their eye. After that, they were banned at my school. That was several decades ago now.

Therefore: this model is not a toy! Do not shoot at people or animals!
Only for hunting small and large monsters, as well as shooting at targets, bottles, cans and other practice targets. Be responsible.

And protect your eyes! Always!

Assembly

Cut off the neck of a balloon or the thumb of a latex glove.

Stretch the balloon over the underside of the inner part.

It should lie smooth and nicely below the thread.

Now pull the locking ring over the thread and down to the bottom edge.

Now screw on the top and tighten it firmly. The lock ring presses on the balloon and secures it.

Fully assembled.

Use steel balls for large monsters, clay balls for medium and TPU bullets for practicing and small monsters.

7.5 joule? How was that measured?

A steel ball weighing 2.18 g was fired from a height of 1.5 m and an angle of 0° (horizontal). The ball flew 50 m until it touched the ground.

The rest is physics. In theory, the ball would fly more than 800 meters, at an angle of 45 ° and disregarding air drag. Briefly summarized:

t=sqrt(2 * 1.5 m / 9.81m/s) ≈ sqrt(0.305 s) ≈ 0.55 s

The ball was 0.55 seconds airborne.

v = 50 m / 0.55 s ≈ 90.91m/s

The ball traveled 50 meters in 0.55 seconds, the ball therefore had a speed of 90.01 m/s.

KE = 0.5 * 0.00218 kg * ( 90.91 m/s )² = 9.01 joule

With a mass of 2.18 g and a speed of 90.91 m/s the ball had 9.01 Joules of kinetic energy.

For reference: Paintball guns are only sold and used by adults in Germany and have a maximum of 7.5 joules. Fortunately, this does not apply to slingshots.

Translation Notice: I am not a native English speaker. I write all descriptions in English to ensure the best automated translation into other languages. To make the text smoother and more readable, I use language tools to refine my wording.

Bill of Materials Notice: Hero Shot models are usually printed in Bambu Lab PLA Basic, primarily Pumpkin Orange, Purple and Matte Charcoal Black. The Bill of Materials contains the recommended filament for the model, which may differ from the filament used for the photos.

Purchases made via the BOM support my work through the Maker World Commission Incentive at no extra cost to you.