Engineer Dhamdhawach Horsuwan is working on a modular prototyping system that puts PCBs into standardized 3D-printable snap-to-connect frames for ease of assembly: SnapBoard.
“SnapBoard is a modular, snap-fit prototyping frame designed to securely hold multiple printed circuit boards (PCBs) during rapid development and testing,” Horsuwan explains of the project. “Engineered for flexibility and reusability, SnapBoard features tool-less PCB installation using compliant snap-fit mechanisms, allowing fast swapping of modules without screws or soldering. The frame accommodates various board sizes through interchangeable mounts and is optimized for 3D printing using standard FDM printers.”
If you’ve got a 3D printer and are looking for a more robust approach to prototyping, SnapBoards could be for you. (📷: Dhamdhawach Horsuwan)
The idea is simple: a host microcontroller or, in the future, a single-board computer is snapped into a 3D-printed carrier and then into a larger frame. Said frame includes space for more 3D-printed carriers, hosting add-on boards like sensors and displays. Everything is held securely in place without screws, bolts, or glue, and can then be connected using standard jumper wires — or soldered, for a more permanent prototype.
“SnapBoard was inspired by a need for a sturdy yet flexible framework to organize modular breakout boards during hardware prototyping,” Horsuwan explains. “Rather than designing custom PCBs for every project, I prefer working with modular breakout boards connected via Dupont wires. SnapBoard offers a more robust and reusable alternative to traditional breadboards — ideal for setups that evolve frequently but still benefit from mechanical organization and durability.”
Boards and components are installed in 3D-printed carriers that snap into the main framework, all tool-free. (📷: Dhamdhawach Horsuwan)
While Hosuwan says the project is still in the early proof-of-concept stage, frames have already been designed for a selection of components including Espressif ESP32- and Arduino Nano-style development boards, an OLED display, a potentiometer, perfboard, and a AVIA Semiconductor HX711 load-cell amplifier.
More information on the project is available on Thingiverse, along with 3D print files for the framework and the parts holders under a reciprocal Creative Commons Attribution-ShareAlike license.