3D Printed Breadboards for Electronics
A new approach uses 3D printing to accommodate wide-format development boards like the ESP32, solving the common frustration of trying to fit large boards onto standard breadboards. This opens up more flexibility and usability for prototyping and experimenting at home. Additionally, Un Kyu Lee transformed an AlphaSmart NEO word processor into a typewriter-inspired, 3D-printed shell requiring about 40 hours of printing and nearly a kilogram of filament.
- The term "breadboard" originates from the early days of electronics when hobbyists would literally use wooden bread-cutting boards to arrange and solder their circuits. The modern solderless breadboard, which allows for temporary, solder-free connections, was invented in the 1970s. - Standard breadboards have a component lead spacing of 0.1 inches (2.54 mm), a design that became popular with the rise of dual in-line package (DIP) integrated circuits. This standardized spacing is often not wide enough for modern development boards. - Development boards like the ESP32 Dev Board are often too wide for a single standard breadboard, covering all the connection holes and leaving no room for jumper wires. A common workaround is to use two breadboards side-by-side to gain the necessary width. - The 3D-printed breadboard approach often involves designing a custom plastic housing and then transferring the metal spring clips from a commercial breadboard into the new, wider body. - The AlphaSmart NEO was a popular portable word processor known for its long battery life—often lasting hundreds of hours on a few AA batteries—and its distraction-free writing experience. - The NEO transfers text to a computer by emulating a USB keyboard and "typing" the document's content. - The practice of converting devices like the AlphaSmart NEO into custom portable computers is part of the "cyberdeck" subculture. Cyberdecks are often inspired by the aesthetics of the cyberpunk genre and are typically DIY projects built around single-board computers. - Building a cyberdeck often involves significant 3D printing for the custom enclosure, as seen in the 40 hours of printing required for the typewriter-inspired shell.
