No Support, No Wrapping, Fast Print

A breadboard-style, Gridfinity-compatible component holder/storage

• The hole sizes and spacing are compatible with breadboard standards.
• It securely holds pins and allows easy detachment.
• Resistors, diodes, transistors, and capacitors are loosen due to varying lead diameters.
• 2×2, 3x2, 3x3, and 4x4 Gridfinity compatible - more sizes coming soon!

The design

I needed something to hold, organize, store, or transport my electronic parts. The idea I came up with was to plug them into a board that could securely hold the pins while allowing easy detachment.

There are two existing options: polystyrene foam and breadboards. However, both have clear disadvantages. I don’t have much polystyrene foam, and the pieces I do have aren’t the right size. Breadboards grip the parts too tightly and are too expensive for this purpose.

So, I designed a custom base board. The linked (or widened) holes—compared to those in a standard breadboard—make it suitable for 3D printing. The hole size and shape have been fine-tuned to hold the parts just right.

After publishing the basic board design, people suggested Gridfinity-compatible formats and dimensions, which led to the development of this model.

Advertise

• If you need a gridfinity base in specific size, consider this one.
• The breadboard-sized, non-gridfinity version is here.

Updates

• 2025-07-12: Added 3x2 board.
• 2025-07-14: Added 4x4 board.
• 2025-07-21: Added 4x4 board, optional 8U wall with stackable lip.
• 2025-07-31: Added 3x3 board, optional 4U, 6U, 8U wall with stackable lip.
• 2026-01-03: All formats (2x2, 3x2, 3x3, 4x4) now have solid and hexagonal walls.