Etch-A-Snap — A Raspberry Pi powered Etch-A-Sketch Camera

thingiverse

**Etch-A-Snap** is (probably) the worlds first **Etch-A-Sketch Camera**. Powered by a Raspberry Pi Zero (or Zero W) it snaps photos just like any other camera, but outputs them by drawing to an *Pocket Etch-A-Sketch* screen. Quite slowly. [The full write up of the project and build instructions are available here](https://www.twobitarcade.net/article/etch-a-snap/). Photos are processed down to 100x60 pixel 1-bit (black & white) line drawings using `Pillow` and `OpenCV` and then translated into plotter commands by building a network graph representation with `networkx`. The *Etch-A-Sketch* wheels are driven by two 5V stepper motors mounted into a custom 3D printed frame. The *Etch-A-Snap* is entirely portable and powered by 4xAA batteries & 3x18650 LiPo cells. The *developing time* for a photo is approximately 15-30 minutes depending on complexity. ## 3D Printed Parts The parts include a frame, 2 drive wheels, 2 control wheels and a camera mount. For best results print in the matching colours (i.e. frame in black, drive wheels in red and control wheels in white). Printed in PLA with 0.2 layer height and 30% infill.