Replacing the original controller is an Arduino Nano running Grbl, likely giving this revived laser cutter better compatibility with popular open source tools than it had originally.

Some of the first steps toward working with Arduino is understanding how to write code for it. The good news is that it's made with beginners in mind.

The Arduino mini lazer paper-cutter uses Arduino Duemilanove + GRBL (0.8c) as well as the laser and the drawing program is inkscape + gcodetools, gcode sender is Unversai G Code Sender.

Smoke machine:** - Vape - Air pump - Plastic/silicone tube - Liquid container - T/L connectors (for the tubes) **Other ...

Well tech tinkerer Joe Desbonnet has whipped up what he dubs "poor man's NFC" using an Arduino, some magnet wire, and any compass-equipped Android smartphone (which is almost all of them).