Do you want to build your own LED lit, rotating globe? Well this is how you can do it!

You will need:

A 3D printer - the material used needs to be translucent

One metal, hollow pole

5/16 plywood

Multi-density fiberwood

An Arduino (and the kit that comes with it)

Gorilla Wood glue

Screws and Drills

Metal strapping

Step 1: 3D Print the Globe and Gears

3D printing the globe will take some time. You can either make your own design on a program (like Onshape) or use a schematic from the Internet. Make sure the diameter of the globe is about 3 inches. Also make sure the material of the globe is translucent and that you use a low density honeycomb pattern so that you can see the light, and easily drill through the globe.

3D print two identical gears (one more if you use that as a stopper). The gears should be about an inch in diameter, and the hole in one should be about 0.27 inches. The hole of the gear that attaches to the servo should match its size.

Step 2: Arduino

Here is the code for the Arduino:

/*
SparkFun Inventor's Kit Example sketch 08 SINGLE SERVO */

#include // servo library

Servo servo1; // servo control object

void setup() { servo1.attach(9); pinMode(13, OUTPUT); }

void loop() { int position; // Change position at full speed: servo1.write(95); // Tell servo to go to 90 degrees

digitalWrite(13, HIGH); }

You can change the speed if you'd like

Step 3: Motor

Make sure you attach everything properly so that the motor will work. Also, be sure to have the gear fit the motor snuggly no it won't fall off!

Step 4: Wires and Lights

You will need only one LED light. You will need 11 wires, more or less. Make sure you have enough to reach the LED light to the globe. The LED will be pushed though the metal rod to reach the middle of the globe.

To make it easier, cut the metal rod in half so that you can have space to see the LED.

Step 5: Wood and Glue

You will need 5/16 plywood, and multi-density fiberwood. Use the fiberwood to cut out a crescent like shape that will be the globe's brace. The plywood will be used as a base for the globe and a wedge for the motor.

Use screws before the glue to mount the crescent onto the top plywood layer. Countersink the screws so that they won't be in the way of the other pieces of plywood. Also use screws to bolt the metal strapping to the wood, and to hold the servo in place.

The Gorilla glue will be used to glue everything together. Make sure to wait until it dries to do anything else!

Also use epoxy to glue the globe and bottom rod so that it won't slide out while it's spinning.