zoetrope-k2

K2 Zoetrope In progress

Damien Monteillard | Julie Genévrier > Concept des personnages | Sylvain Philip & Damien Monteillard > Programmation arduino | Creative Commons BY-NC-ND

Definition

A zoetrope is a device that creates animation through an optical illusion based on the principle of motion decomposition (the principle of cinema).

The K2 zoetrope is a device with multiple advantages, such as the ability to change animations easily and the option to view a 2-second animation.


This experimental prototype is 98% complete. I am developing the K3 which will be much more accomplished and especially with a design that looks like the first zoetrope K1

Demo

Features of the K2

  • Interchangeable tray. 24 or 48 figurines 3d printed and hand-painted with acrylic
  • Option to change the figurines (magnet + alignment tab)
  • Lid for optimal use in daylight. It also keeps the figures safe, as you mustn’t put your fingers in there. There is an electronic safety feature too.
  • Front panel controls with cam switches:
    • Activate the motor to rotate the turntable in one of three directions (-1, 0, 1)
    • Turn the LED strobe on or off.
    • Struborder frequency change to test with higher frequency. Currently, because of a mechanical stress I can only go up to 48 Hz. But I don't see the use of building more than this value. I also need to increase the speed of rotation of the engine but I think I'm getting to its maximum speed. I'll think about changing the engine for the K3.

It is bulky, but the width is that of a standard hi-fi unit.

Ce modèle est un prototype (POC - Proof Of Concept). Aujourd'hui je développe le K3 plus esthétique (Design de celui des coqs) et moins encombrant.

Design

To develop it, I used the following open-source tools:
  • Freecad for the design of the mechanical parts > Create a blog post about Freecad.
  • Blender for character modelling and animation, as well as mechanical assembly, ray tracing simulation and modelling, and rigging (+Python code).
  • GIMP and Krita for character texturing.
  • KiCad for electrical schematics and the development of a bespoke circuit board.
  • Cairo for developing the board’s grid pattern.
  • Inkscape for labels.
Zoetrope K2 datasheet

Some photos of the prototype

Manufacture

Screen module + lock

The 3D-printed ABS lock shaft broke several times.
As a result, new aluminum shafts had to be turned on a lathe.