Skeleton

Hello!
After reading this document you will surely know how to build an scary interactive skeleton from scratch.

Let’s get started!

To replicate the project you will need:

Electronic parts

PCB

Arduino UNO

2 servo motors - Micro Servo 9g [DF9GMS]

1 ultrasonic sensor - [HC-SR04]

Cables

Materials

DM 600x800x2.5 mm

White glue

1.5 mm diameter drill

Tools

Screwdriver

Silicon gun

Laser cut machine

Electric drill

Software

Arduino

AutoCAD

To build the circuit you will need the following components:

Electronic parts

PCB

Arduino UNO

2 servo motors - Micro Servo 9g [DF9GMS]

1 ultrasonic sensor - [HC-SR04]

Cables

2 screws from the Arduino kit

The following code designed with the Arduino software associates the servo's movement with the distances detected by ultrasonic sensor.

This construction guide will help you build the skelaton.

After designing and building this skeleton we have noticed that the following aspects use some improvement:

For instance, in the pictures, you can see some missing phalanges from both hands. If there happens to be an object nearby once the motor activates the hands will collapse breaking the phalanges. By either drawing thicker phalanges or changing their material to a wire-like one, this issue can easily be solved.

Another one worth improving is the mechanism used to close the box. Currently, there is no mechanism, the box is closed assembling the front part with the laterals. The skeleton does not stay together, sometimes the servo’s movement makes the front part fall. Were we to use a hinge to join the front with one of the laterals and some magnets in the other one, the skeleton would stick together and we would still have access to its electronics.

Although its drawbacks, we are satisfied with skeleton’s code, which works properly, and how the electronic parts are embedded into the structure.