Recently, on the RC Groups forum, a passionate 3D printing enthusiast named Harcoreta shared an impressive project — a fully functional 3D-printed scale model of the General Electric (GE) turbofan jet engine used on the Boeing 787. This detailed simulation replicates both the internal and external structure of a real jet engine, showcasing incredible precision and craftsmanship. What stands out is that all 60 fixed and movable blades were created using a desktop 3D printer, a feat that demonstrates not only technical skill but also a lot of patience and dedication.
This 3D-printed engine isn’t just a static model — Harcoreta’s next goal is to install it in a model airplane! The project has already attracted a lot of attention from the 3D printing community, as creating such a complex aero engine with consumer-grade equipment is no small task. It's a testament to what can be achieved when someone is truly committed to their passion.
Harcoreta is an active member of the RC Groups community, known for his creative and eye-catching 3D-printed models. He previously designed and printed a small EDF (electric ducted fan) engine, which inspired him to take on a larger and more complex project. Although he had to pause the project for a year due to various reasons, he eventually got back to it, aiming to test the 3D-printed engine on a Bixler model aircraft.
According to China’s 3D Printing Network, Harcoreta spent a significant amount of time on the 3D printing and assembly process, beyond just the design. His model even includes a reverse thrust system, allowing the remote-controlled plane to stop effectively. The engine uses an NTM 1400kv motor and is designed to produce over 0.5 kg of thrust, operating on 3S or 4S batteries. The exhaust area has been slightly reduced to about 95% of the original, maintaining efficiency while adapting to the model scale.
The technical specs of the GE GEnx-1B 3D-printed engine include:
- Main fan with 18 blades, 100 mm in diameter
- 24 outlet guide vanes
- 18 internal turbine blades, 34 mm in diameter
- Reverse thruster with translation fairing, blocking door, and cascade
- NTM 1400kv 35 mm motor
- Thrust target >0.5 kg, maximum 3S or 4S
- Simplified engine hanger
- Slightly reduced exhaust area, about 95% FSA
While there have been many amazing 3D-printed projects reported before — like 3D-printed Toyota engines and solar-powered drones — Harcoreta’s work represents a new level of complexity and realism. His project is not only a technical achievement but also a source of inspiration for hobbyists and engineers alike.
We’re excited to see how this 3D-printed engine performs during testing on the Bixler aircraft and look forward to future updates from Harcoreta.
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