SquareLock Modular Stacking Bins

SquareLock is a clean modular storage system designed for organizing small parts in workshops, desks, and maker spaces.

Each bin features alignment pegs and sockets that keep stacked bins securely positioned while still allowing quick removal and rearranging.

The simple design makes it easy to expand into a larger modular storage system.

Features

• Alignment peg stacking system
• Secure non-slip stacking
• Clean modular design
• Easy access interior
• Simple and reliable geometry

Perfect for organizing

• screws
• nuts and bolts
• electronics components
• 3D printing hardware
• workshop accessories
• desk supplies

Print Settings

No supports required, though a Mouse Ear Brim helped in the corners. 

Recommended:

• Layer height: 0.2
• Infill: 10–15%
• Walls: 3
• Material: PETG / PLA

Future expansion ideas

This design may expand into a full modular system:

• deeper bins
• divider inserts
• pegboard mount version
• drawer organizer versions

If you’d like additional sizes or accessories for the SquareLock system, let me know in the comments.

Designed by Old Greg 3D (OG3D).

If you print one, I’d love to see your Makes!