Hi I’m Marcel Cepuch.
Here is what I do.

I'm also known as Cocoanix. I'm 19. I'm from Poland. I'm obsessed with 3D printing and CAD design. I make videos on YouTube and I used to make games.

3D Printing Contact

My 3D Printers

I designed two printers from scratch. They are fast, innovative and were a great learning experience along the way!
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Cocoanix Printer One

A custom CoreXY 3D printer built over 3 years and 4 major revisions, based on the Rook 2020 design. Runs Klipper on a Pi, with Bambu-style toolhead components, an Ender 3 heatbed, and a strong focus on speed, reliability, and upgradability.

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Cocoanix Printer Zero G+

A custom Klipper-based AWD CoreXY printer with a MadMax toolchanger system, TriDra triple-Z bed, CANbus toolhead control, and a 2K touchscreen. Fully self-designed for clean, reliable multi-material printing.

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My Games

I have a huge experience in Game Development & Publishing. I write my games in Unity C# and model objects in Blender. I'm currently not developing any games/projects.
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Race 'n Dash

Feel the speed! Race 'n Dash is a very fun game that is not as simple as it looks. Find your unique gameplay now!

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ParkourLand Elite: Playground

Get ready to leap into a world of endless possibilities with ParkourLand Elite: Playground.

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Why me?

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Experience

3D Printing since 2019
Writing code since 2018
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Influence

1500+ Subscibers on YT
300K+ Views combined

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Open to work

I'm happy to collaborate with brands/creators.
There's more!

There is more than printers & games. I create content based on 3D printing, new breakthroughs and unique fun experiments for your enjoyment. I do weekly YouTube videos about anything 3D printing.

3D Printing Isn't Just FDM (I Tested 4 Other Technologies)

Fixing My DIY 3D Printer (It Was Broken, Dirty, and Out of Calibration)

3 Ways to Print INFINITE Colors With Only 4-5 Filaments

Your OLD 3D Printer Can Do WAY More Than You Think

I Pushed My Ender 3 Clone TOO FAR

My 10 Most Downloaded Designs - Print Showcase

From Garbage Prints to PERFECT Prints - How To Properly Tune Your 3D Printer

Is the Voron 2.4 Worth the Hype? I Built One to Find Out

I Added a 5th Toolhead to My Toolchanger (Was It Worth It?)

I Put 4 Different Nozzle Sizes on a Toolchanger. It Changes Everything.

Where to find me?

YouTube - 3D Printing

Cocoanix 3D Printing

YouTube - GameDev

Cocoanix

GitHub

Cocoanix & CocoanixDev

E-Mail - 3D Printing

key.cocoanix@gmail.com

E-Mail - GameDev

support@cocoanix.com

Microsoft Store

Cocoanix

© 2026 Cocoanix