🌀 Vacuum Cleaner

A vacuum cleaner is a high-RPM motor attached to an impeller. That's a jet engine's job description.

Vacuum motors are absurdly powerful for their size — typically 1000-1500 watts, spinning at 20,000-30,000 RPM. They move massive volumes of air. Reverse the airflow direction and you have a hovercraft lift fan. Add suction to a robot and it climbs walls. Channel the exhaust and you have a leaf blower. Add a cyclone separator and your shop vac filter lasts forever.

The motor doesn't care whether it's sucking dust or doing something far more interesting.

Suggested Build Order

Start with the simplest motor repurposing, end with the crowd-pleaser:

1. #078 — Vacuum Leaf Blower — Reverse the airflow. Simplest build.
2. #077 — Cyclone Dust Separator — Essential shop tool. Passive physics.
3. #298 — Vacuum Sandblaster — Blow mode + abrasive media. Surface stripping.
4. #075 — Vacuum Hovercraft — The classic. A platform that floats on air.
5. #076 — Wall-Climbing Robot — Suction + drive motors. Advanced build.
6. #299 — Pneumatic Launcher — Pressurized air + projectiles. The showstopper.
7. #325 — Benchtop Wind Tunnel — See aerodynamics with smoke + vacuum motor.
8. #326 — Air Hockey Table — Reversed airflow + drilled surface = playable game.

Related Categories

• Functional Machines — Workshop tools from salvaged motors
• Pranks & Party — Party builds powered by air pressure
• Weird Science — Aerodynamics and physics demonstrations