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 has been under development for some time by Instructables user “kokpat” whioc has now finished the project and posted its details on the Instructables website.

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).