3D-Printed Jet Turbine
A motor spins turbine blades inside a 70 mm printed casing, like a real jet engine.
- 3D Printing
- Tinkercad
- Motors
// What I'm building
⚠ SAFETY CHECK Spinning blades can be dangerous. Grown-up check before spinning it up, and wear safety glasses.
A 3D-printed turbine with a casing around it, like the inside of a real airplane jet engine. A motor spins the blades.
I'm designing it in Tinkercad. The casing is 70 mm across with 3 mm walls, so there's about 64 mm inside for the blades.
- 70 mm casing, 3 mm walls (~64 mm inside)
- Designed in Tinkercad
- Motor-spun blades
// Build Log
Try #1 — sizing the casing
- WHAT I TRIED
- Picked a casing size between 2.5 and 3 inches (63.5–76.2 mm). I went with 70 mm.
- WHAT BROKE
- Nothing broke — just math!
- THE FIX
- With 3 mm walls, the inside is about 64 mm.
Try #2 — showing my motor
- WHAT I TRIED
- Sent a photo of my motors to figure out the blade count, size and pitch.
- WHAT BROKE
- The photo didn't show up, so ChatGPT couldn't see the motor.
- THE FIX
- Say which black motor I'm using instead.
Try #3 — the blades
- WHAT I TRIED
- Picking which black motor to use.
- WHAT BROKE
- Nothing yet — still designing!
- THE FIX
- Then work out the blade count, size and pitch.