Halloween Ouija Board

2024.10

Motion Sensing Installation for Holiday Brand Event

Installation, G-Code, Python, Pen Plotter

I did this project during my internship. It is part of a Halloween-themed brand experience/event in New Orleans for Fernet-Branca, following the success of the motion capture installation.

Using the supernatural concept of the Ouija Board, this installation is built to convey hidden messages when participants approach (using a proximity sensor), and guide them to the next target of the experience.

My Work

I was responsible for programming the G-Code commands for controlling the XY plotter with Python. I also worked closely with fabricators and designers to make sure the box was made with the correct size and design that allowed the plotter to function properly and be stable for running 24/7 for the entire week length of the event.

Case Design & Fabrication

We had to work closely with fabricators and took extra considerations on the design of the wood box that holds the XY plotter. This is due to:

1. The plottable area of the plotter is not centered, and the motors and cables need extra space around the plotter to move unrestricted;

2. As many devices and cables, including a Raspberry Pi, need to be placed inside the box, to maintain the Ouija Board design and characteristics.

Moving Planchette with Pen Plotter

After the design and dimensions are finalized, coordinates for each letter are measured, and the corresponding G-Code is sent corresponding to the letter being called via a Python script. A ring of strong magnets was placed on top of the Z-motor (the motor where the pen is usually connected), with a matching ring in the planchette. This allows the planchette to be moved “without external force” and show the message.

Final Result

Enlin Li

Kanagawa, Japan