HyperCarousel

A hypertext retrofit for the 1960s Kodak Carousel slide projector. Custom HyperSlides carry handwritten lookup tables that map numpad keys to linked slides, turning a linear projector into a browsable hypermedia device.

Tags

hypertext, memex, slide projector

2025

analog hypermedia

HyperCarousel
Cover image for HyperCarousel

HyperCarousel gives the Kodak Carousel slide projector hypertext navigation. Load a tray of custom HyperSlides, press a number on a numpad, and the projector jumps to the linked slide. It's Vannevar Bush's Memex, described in his 1945 paper As We May Think, reimagined with a 1960s slide projector instead of a computer.

HyperCarousel with Kodak Carousel 600 mounted
Hosted on Polycam
HyperCarousel frame
Hosted on Polycam

Each HyperSlide carries its own handwritten lookup table printed on the mount. A camera reads the table, an ESP32 decides where to go next, and a servo presses the carousel's advance button. The creator workflow stays analog (printed transparencies, laser-cut cardstock, pen-and-paper link tables), with the navigation layer running quietly on top.

The full set of HyperSlides, printed on transparency film with handwritten lookup tables
The full set of HyperSlides, printed on transparency film with handwritten lookup tables
A HyperSlide projected through the Kodak Carousel
A HyperSlide projected through the Kodak Carousel

Built as the final project for MIT's How to Make (Almost) Anything. Full build documentation, including every iteration and detour, lives on the htmaa project page.

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