hobby #51
Roasting Profile Curve Engraving
Use a thermocouple and microcontroller to log coffee roasting temperature curves from a popcorn popper or heat gun setup, then convert the profile data into toolpaths and engrave the curve onto the bottom of ceramic mugs using a rotary tool attachment. Each mug carries the thermal signature of the beans it's meant to hold—first crack timing, development ratio, and cooling rate etched as a permanent record.
Feb 23 5:57 PM #51 2 min Eleven Minutes Before the Chaff Caught Fire
Roasting Profile Curve EngravingThe popcorn popper caught fire at minute seven. I still engraved the mug.
code-a-day tied to this hobby
- From Temperature Curves to Ceramic Dots Bresenham's Line Algorithm