Introduction: Led Projector
This project is about a simple light projector that works with an engine and a led. It has an image of the earth that is projected in a plumavit ball.
- high sheen led
- 2 plastic tubes (one bigger than the other)
- magnifying glass
- lego engine
- 2 AA batteries
- earth image
- plumavit ball (you can use the wall)
Step 1: Test Step
The plumavit ball is painted white. Then is done a test structure to project the light of the led in the ball.
Step 2: Put the Magnifying Glass on the Tube
It is made a hole in the small tube and the magnifying glass is stuck in
Step 3: Make Work the Engine
First, the earth image is put in the part of the engine that turns. The led is twisted and positioned perpendicularly to the image. Then, it's made the cables circuit welding with the led, the engine and the AA batteries, the entire engine starts working.
Step 4: Put the Switch
It is made a little hole in the big tube to put a switch. Then it is made a new circuit with the switch, the engine, the batteries and the led. The switch is put in the hole.
Step 5: Cables Protection
The cables circuit is protected with a special scotch
Step 6: Put the Circuit Inside the Tubes.
The batteries are put inside the tubes. Then the engine is stuck there.
Step 7: Make Work the Project
The tubes are joined. The projector is turned on with the movement of the switch and to focus the image the small tube is moved.
Step 8: Project the Image
The image is project on the plumavit ball or the wall making the effect of the earthmovement with the engine and the led.