# INTEGZA on BUILDING JET and ROCKET ENGINES at HOME

Source: https://www.youtube.com/watch?v=Kp1OpzZ7S2k
Recap page: https://rapidrecap.app/video/Kp1OpzZ7S2k
Generated: 2025-07-17T02:04:01.9+00:00

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## Quick Overview

Integza successfully built various jet and rocket engines at home, culminating in a micro detonation engine, despite significant challenges and safety warnings. His projects progressed from simple pulse jets to complex, high-temperature metal 3D printed designs, often requiring unconventional materials and ignition methods.

**Key Points:**
- Integza, a YouTuber, built a functional pulse jet engine using a carbon fiber mold and fireplace sealant after initial attempts with 3D printed PLA failed due to heat.
- His first successful pulse jet was so loud that neighbors called the police, and he described it as "the happiest day of my life."
- He progressed to metal 3D printing, creating a tiny hydrogen-fueled pulse jet that sounded like "a demon crying out from hell" and reached 4,000°C.
- After failed attempts with plastic rocket engines, he successfully built a rocket engine with a 3D printed ceramic nozzle and later a fully metal 3D printed one.
- Integza pursued building a detonation engine, a rare and powerful type where combustion exceeds the speed of sound, after being warned it would kill him.
- He achieved a micro detonation engine by following a Japanese paper and using shotgun shells to initiate combustion, destroying approximately 16 engines in the process.
- His projects often stem from obsessive Wikipedia research, leading him to discover and visit a company developing electric solid propellants.

**Context:** Joel, known as Integza on YouTube, began his channel in 2015 after being inspired by a Veritassium video and believing he could explain gyroscopic precession better. Despite an initial warning from an expert against building jet engines at home due to safety risks, Integza embarked on a journey of experimental engineering, progressively tackling more complex and dangerous engine designs. His work often involves 3D printing and unconventional materials, driven by a self-described "obsessive weirdo" approach to research.

## Detailed Analysis

Integza, a YouTube creator, details his ambitious journey of building various jet and rocket engines at home, starting from simple pulse jets to complex detonation engines. He initially experimented with a basic jam jar pulse jet and then attempted a 3D printed PLA version, which predictably melted due to extreme heat. His breakthrough came with a pulse jet engine constructed from a 3D printed mold wrapped in carbon fiber and sealed with fireplace sealant, which successfully ran, albeit loudly enough to prompt a police visit. He scaled this concept to a larger pulse jet mounted on an IKEA chair. Discovering metal 3D printing opened new possibilities, leading him to create a tiny, hydrogen-fueled pulse jet that reached 4,000°C and produced an intense, high-frequency sound. Integza then ventured into rocket engines, initially failing with a plastic design intended to create a protective vortex, but succeeding with a ceramic-nozzled engine and later a fully metal 3D printed rocket. His ultimate challenge was the detonation engine, a highly exotic and dangerous technology where combustion occurs faster than the speed of sound. After a German professor warned him against building one due to the risk of death, an Australian professor encouraged him to attempt a micro version. Following a Japanese research paper, Integza successfully built a tiny detonation engine, using shotgun shells as an unconventional ignition method, which resulted in the destruction of about 16 prototypes before achieving a visible detonation ring. His projects are often inspired by deep dives into Wikipedia, leading him to explore cutting-edge technologies like electric solid propellants, even visiting the only company known to produce them.

### Integza's YouTube Origin

- Created channel in 2015 after being inspired by a Veritassium video
- Believed he could explain gyroscopic precession better
- His first video was so "cringy" it still "kills him inside"

### Early Pulse Jet Experiments

- Started with a simple jam jar pulse jet
- Attempted 3D printing a pulse jet with PLA, which melted due to heat
- Successfully built a pulse jet using a 3D printed mold wrapped in carbon fiber and fireplace sealant
- Scaled up the concept to a larger pulse jet mounted on an IKEA chair

### Advanced Jet Engine Development

- Discovered metal 3D printing, enabling more durable designs
- Built a tiny hydrogen-fueled pulse jet that reached 4,000°C and sounded like "a demon crying out from hell"

### Rocket Engine Ventures

- Initially failed with a plastic rocket engine designed to create a protective vortex
- Successfully built a rocket engine with a 3D printed ceramic nozzle
- Created a fully metal 3D printed rocket engine that worked well

### The Detonation Engine Challenge

- Explained detonation as combustion occurring faster than the speed of sound, distinct from deflagration
- Learned the US space program accidentally discovered detonation engines during rocket testing in the 1960s
- Visited a German professor who warned him against building one due to extreme danger, citing a 2-bar pressure wave and doors blowing off

### Detonation Engine Construction & Results

- An Australian professor encouraged him to build a micro detonation engine using hydrogen and oxygen
- Followed a Japanese research paper to construct the tiny engine
- Used shotgun shells as an unconventional ignition method, destroying approximately 16 engines in the process
- Achieved a visible "ring of detonation" in slow motion footage

### Future Projects & Inspiration

- Currently "soul-searching" for his next engine project
- Ideas often stem from obsessive Wikipedia research, playing a "nerdy game" of clicking links
- Explored electric solid propellants, which ignite with voltage but are safe to handle
- Visited the company producing electric solid propellants, learning the process but unable to replicate it