Press-Fit Breadboard Tray for Standard Solderless Breadboards

A simple press-fit tray holder for standard solderless breadboards. Designed because some of the cheaper breadboards never seem to snap together correctly — the tabs are often slightly misaligned and the boards end up crooked or loose.

This tray keeps the breadboard flat, rigid, and secure on the workbench while still allowing removal if needed. The rounded corners and thicker base give it a solid feel and help prevent flex while plugging in jumper wires and components.

Printed in transparent red PETG, which gives the walls a nice “jeweled” or engine-turned look when light passes through the layers.

Box made in Blender using a simple Boolean workflow.

Outer dimensions:

117 mm × 173 mm

Inner cutter dimensions:

109 mm × 165 mm

This creates approximately 4 mm thick side walls.

Depending on your printer tolerances and the breadboard you use, you may need to scale the model slightly for the desired press fit.


HINT!!!

Before printing the full model, sink the box slightly into your bed plate in your slicer and print only a few layers of the upper walls first. This makes it easy to test the breadboard fit and printer tolerances without wasting filament or print time.

Features:

- Press-fit breadboard holder

- Rounded corners

- Thick stable base

- Clean bench-friendly design

- Works well with PETG

- No screws or glue required

Notes:

- Some breadboards may require trimming or removing the factory snap tabs for best fit.

- Designed around common inexpensive solderless breadboards.

- Anti-lift tabs were used during printing and can be trimmed off after printing if desired.