Raspberry Pi Pico breadboard holder with jumper wire tray
A baseplate that holds a half-size breadboard and a Raspberry Pi Pico side by side, with a tray for the jumper wires that otherwise end up in a knot. The half breadboard is 83 x 55 mm with an adhesive back, so the plate has an 84 x 56 mm recess 2 mm deep, a 52 x 22 mm pocket with two 2 mm pegs on the Pico's 47 x 11.4 mm hole pattern so the board sits flat when not on the breadboard, and a 100 x 40 x 15 mm open tray with two dividers for short and long wires. The plate is 200 x 110 x 4 mm with 2 mm walls and four rubber foot pockets. Prints flat without supports.
Starter kits vary and a downloaded plate rarely matches the breadboard brand you have. In SpeakCAD you describe the boards, preview the plate free in the browser, swap the Pico pocket for an ESP32 or Arduino Nano in the chat, and download the STL.
Design a project baseplate 200 x 110 x 4 mm with an 84 x 56 mm recess 2 mm deep for a half-size breadboard, a 52 x 22 mm Raspberry Pi Pico pocket with 2 mm pegs on a 47 x 11.4 mm pattern, a 100 x 40 x 15 mm jumper wire tray with two dividers, four foot pockets.