Gothic Castle of Shadows

Electronics are optional - you can print and use the castle as a decorative model without adding any LEDs or electronics!

For those who want to add extra features - print the small rock as well. It hoses a small switch*, for extra control of the lights! 

*This switch is mostly for the model to count as having a mechanical part.

Recommended Print Settings: 

Nozzle: 0.4mm (if you can use 0.2mm or 0.25mm - use it).

Support: Tree support required.

Bed adhesion: Raft for main tower.

List of Component:

1. 1x Red LED.

2. 1x Green LED.

3. 5x Yellow/orange LED.

4. 7x Resistor (200-1000Ω).

5. 1x Arduino Uno (with cable).

6. Wires.

7. Baking paper/paper.

8. Heat-shrinks/tape.

List of Tools:

1. Soldering iron (not necessary, but very helpful).

2. Hot glue gun.

3. Scissors (a hobby knife can work as well).

Instructions:

1. Print all 3 model files and carefully remove the supports.

2. Insert the castle and main tower into the rocks. Be careful not to break any part of the model.

3. Solder a resistor to the positive (longer) leg of each LED.

4. Solder a wire to the resistor (the wire should be around 25-30cm long).

5. Solder a wire to the negative (shorter) leg of each LED (the wire should be around 25-30 cm long).

6. Use the heat-shrinks/tape to wrap each leg of the LED and the resistor. Make sure that the resistor and positive leg of each LED are insulated so they can't touch the negative leg directly.

7. Use the paper to create small cylinders (around 8 cm long - you can trim later). Cut them to size so the walls of each cylinder are no more than 2 layers of paper thick (1 layer thickness works best).

8. Insert the cylinders into all 5 towers of the castle. Use leftover paper to line the walls and roof of the square hall at the back of the castle.

9. Connect the wires from the negative legs of all LEDs to a single wire, and connect it to the GND pin on the Arduino.

10. Connect the positive wire of the red LED to pin 9 on the Arduino.

11. Connect the positive wire of the green LED to pin 10 on the Arduino.

12. Connect the positive wires of the yellow/orange LEDs to pins 2-6 on the Arduino.

13. Insert the red LED into the main tower, and a yellow LED after it. Make sure the yellow LED is around 3 cm under the red LED.

14. Insert a yellow LED into each of the front towers, the rear-left tower, and the hall. The green LED goes in the rear-right tower. (This led arrangement is a recommendation. You can arrange them however you wish)

15. Use hot glue to secure the wires and paper in place.

16. Route the wires out through the back of the rock formation. The Arduino should sit behind the castle.

17. Open the code file using the Arduino IDE. 

18. Connect the Arduino to your PC using the cable and upload the code.

19. That's it - the castle is ready!

20. Want extra features? use a small switch, hidden in a rock, for extra control! 

Remixes are welcome! You can edit the code, use a different control board (maybe even put the control board inside the rocks under the castle), and make whatever change you want!