I was geeking out about synthesizers back then and found out about people programming their own arpeggiators, naturally I needed to try 🌝
The final case has been printed with a different, translucent, material that made me want to wire up an LED to the buzzer.
How I built it (Stages of development)
Stage 1 - First breadboad / arduino attempts to create some sort of arpeggiator (music device, progressing chords / sounds) with a piezo buzzer (limited audio capabilities, only frequencies through pulsing at specific Hertz)
Stage 2 - Soldering the basic components onto the board: three potentiometers (knobs / dials), ATtiny85 (microcontroller) and the piezo buzzer (speaker)
Stage 3 - Functional assembly almost complete with power switch and 3D-printed dials. Battery is still missing
Stage 4 - First attempts to 3D-Print a case after carefully measuring and designing it in the free AutoDesk Fusion 360 modeling software.
Stage 5 - This is the parametrically (variable wall thickness etc.) designed case for the Pocket Synthesizer. The animation shows the custom sliding door to allow for screwless opening and closing.