April Fools' Coke & Mentos Eruption Prank - Free 3D Print Model

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LuminaDrift

Household>Festivities

IP Report

GIF

Print Profile(2)

All

H2D Pro

H2S

H2D

P1P

H2C

P1S

X1 Carbon

X1E

P2S

A1 mini

X2D

A2L

Designer

17 min

1 plate

4.7(10)

P1S

Designer

18 min

1 plate

Open in Bambu Studio

Boost

963

1995

578

415

Released

Description

The "Coke & Mentos" Prank Gadget

This clever little device uses the classic Mentos-and-Coke reaction to create a hilarious "spray-on-open" prank. With a few simple parts and a bit of glue, you can turn any ordinary soda bottle into a surprise fountain.

The design cleverly utilizes the space between the cap and the bottle neck to hide a mint Mentos at the top. Using a precise system of claws and guide slots, the Mentos stays securely in place and out of sight. From the outside, it looks like a perfectly normal bottle of Coke. However, the moment the "victim" twists the cap, the internal mechanism releases, dropping the Mentos into the soda. The result? An instant eruption of bubbles and a spectacular soda fountain that is as funny as it is surprising.

Note: This device is designed for standard PCO 1881 (28mm) soda bottle necks. While the EU is transitioning to the GME 30.40 standard due to environmental regulations, the PCO 1881 remains the standard for the vast majority of soda bottles worldwide.

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Documentation (1)

Assembly Guide (1)

Mentos Coke Fountain Kit.pdf

Comment & Rating (79)

@Snobbz

Nice design! After a decade of letting my brother think I forgot he spat a mouthful of irn-bru in my face - it's time to repay his kindness! Good effort!!

@misaki_ans

Revenge is a dish best served cold.

@user_1869336926

Replying to @misaki_ans :

agree

@user_2123199055

@misaki_ans I agree too

@camfoliponopia

Don't waste food it's a sin Amen Accept Him in your life Amen Jesus Christ Loves you and I love you Amen Jesus Christ Is Lord Amen

The designer has replied

@user_347599930

coca cola is not food

@user_1298750339

You can try using diet coke, which provides 0 calories of energy, so it is not considered food in the nutritional sense

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@Rowebot_3d

get out

@Versium

No offense, but this can be done very simply and much more uncomplicatedly with just a thread. 1. Make the thread through the Mentos with a needle and tie it securely 2. Screw on the lid so that the remaining part of the thread is clamped 3. Lid on -> thread is released -> Mentos falls I wanted to make something similar for this competition at first, but then I came across this trick on the internet But for those who don't have thread or a needle at home, this would be something for them

(Edited)

The designer has replied

Show original

@user_1298750339

Your suggestions are very good, I did not do enough thorough information retrieval, but I think this model of mine is also quite interesting, let's just consider it a design exercise

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@Versium

Replying to @user_1298750339 :

I also find your model immediately catches the eye compared to other models, solely because of the mechanics

(Edited)

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@Snobbz

🤦🏻‍♂️I mean, why buy a 3D printer when you can just melt plastic with a soldering iron and draw each layer, less complicated than a well designed item that does the same thing with less effort😂

@bradykdavidson

Hello, my son loved the idea of this model, but he was wondering if you could make a reusable model (so you wouldn’t have to keep reprinting them), and more of a snap fit design so you didn’t risk glue getting into the drink. He and I both love this concept, so if you would consider making a version 2, we would greatly appreciate it.

The designer has replied

@user_1298750339

Thank you for your and your son's appreciation of this work, I will try to design a new work with a snap-fit structure. However, due to the overly smooth flat opening structure of Coca-Cola, several snap-fit designs I have tried before could not achieve the intended function well, and the precision of FDM 3D printers also limits the reliability of small mechanical structures. I am not a mechanical engineer, I design models purely by intuition, and I will try to redesign it if I have better ideas in the future. Since I have set an open-source license for this model, friends who see this model and have better ideas can improve upon it.

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@bradykdavidson

Replying to @user_1298750339 :

I understand, thank you for the model, my son is going to print it very soon.

@hamandtacos

Boosted

why no A1?

The designer has replied

@user_1298750339

Actually, this model is suitable for all printers, as it is very small. I will modify the information later

Show original

@hamandtacos

Boosted

Replying to @user_1298750339 :

sorry, it’s just that I’m on mobile, so I can’t change it to work in my a1

@user_1298750339

I have released a new print profile that supports gantry-style 3D printers like the A1 and A1 mini, and you can print it directly on Bambu Handy

Show original

@BoneForgePrints

does it work with say, another kind of mint?

The designer has replied

@user_3206594871

Show original

@BoneForgePrints

Replying to @user_3206594871 :

okay thanns

@user_1298750339

It should be usable if the dimensions are appropriate. However, according to Wikipedia's introduction to Mentos, Mentos mints utilize their rough surface microstructure to release carbon dioxide from the cola. I am not sure if other types of mints also have suitable surface microstructures

Show original

@3D.LOVER

ok i love this how did you think of it

The designer has replied

@user_1298750339

Inspired by the cap of a milk carton

Show original

@user_958025243

@user_1298750339 what if you closed the cap after the mento dropped, would it blow up?

The designer has replied

@user_1298750339

Actually, the air pressure inside the bottle won’t keep rising indefinitely. At a constant temperature, once the pressure inside the coke bottle reaches a certain limit, it will stop increasing. This is a basic thermodynamics problem, and you can Google "Henry's Law" for more information.

@user_958025243

neat

@user_1155068781

Quick question do people notice that the cap was already opened?

The designer has replied

@user_1298750339

You can pretend you don't have enough strength to open the bottle cap and ask someone to help you.

@user_1155068781

Replying to @user_1298750339 :

thanks

@user_1291949358

question can you make a model with more mentos slots?

@swaga1234

not without it being super noticeable

License

This user content is licensed under the MakerWorld Exclusive License.

You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.

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