The Variable Nozzle EDF 2 is a fully 3D-printed exhaust control system designed to enhance EDF (Electric Ducted Fan) performance through dynamic nozzle adjustment.
Powered by three MG90 metal-gear servos, the mechanism enables precise control over the exhaust geometry — allowing you to modify thrust, efficiency, and back pressure on the fly.
Whether you’re testing thrust dynamics, experimenting with propulsion efficiency, or building a custom RC jet, this system offers flexibility, durability, and precision.
Ideal for makers, RC enthusiasts, and aerospace learners looking to explore the science of variable exhaust flow.
Nozzle Convergence Mechanism
3D Printed
250*250*250 mm
Side View
Back view
3S Battery performance test
With converging nozzle
Without converging nozzle
4S Battery performance test
With converging nozzle
Without converging nozzle
Weight 196 gm
Air Velocity Test
Servo Motor Driven
3 Servo Motors
MG90 Servo
3D Printable 70mm Updated Variable Nozzle Electric Ducted Fan .STL Files
3D Printable 70mm Updated Variable Nozzle Electric Ducted Fan .STL FilesThis file contains all files required to print your 70mm Updated Variable Nozzle Electric Ducted Fan at home.
Total Printing Volume of all 9 Files: 83,304 mm³
This file contains 9 .STL files i.e.
- 70mmm EDF Propeller
- Casing
- EDF Holder
- Nozzle Holder
- Nozzle Link New
- Nozzle
- Servo Holder
- Servo link
- Slider
The Variable Nozzle EDF is distributed into the parts mentioned above so that you can easily print any part at your home with your own DIY 3D printer of minimal size i.e. 220(mm)x220(mm)x250(mm).
70mm Updated Variable Nozzle EDF Parts included in the File, Images-
Watch our DIY 70mm Updated Variable Nozzle Electric Ducted Fan video on YouTube.
In case of any doubt, please use the Contact Us page.
Thank You.
Parts Included in the STL File
| Motor |
Racerstar 2500 Kv Motor link DYS Sunfun 2500 Kv Motor link Samguk 2500 Kv Motor link |
| ESC |
Hobbywing 40 amp ESC link Readytosky 40 amp link BLHeli 35A/45A ESC link |
| Servo Motor ×3 | SG90 180 Degree link |
| Buck Converter | LM 2596 link |
| Battery |
4S Tattu 14.8V 3300 mAh 60C link 3S Tattu 11.1V 1300 mAh 75C link |
| Servo Tester | Servo Tester link |
| Battery Charger |
Sky Rc B6 Neo Charger link Imax B6 Balance Charger link Imax B3 Pro Charger (2S 3S) link |
| 3D Printer | 220×220×250 mm build volume |
| Nuts and Bolts | M2.5 & M3 sizes (various lengths) |
| Accessories | Silicon wires, cable zip tie, heat shrink tube, soldering iron |
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