I’ve seen a lot of great tool organizer designs out there, but as an aircraft mechanic who’s constantly in and out of my toolbox all day (and with a son who’s also an aircraft mechanic), proper tool shadowing is non-negotiable for us.

Instead of traditional foam, I wanted something far more durable, rugged, and with a cleaner-look. So I designed Grid10.

Grid10 is a modular 3D-printed tool organization system. The base plates hook together using simple 3D printed plastic “dog-bone” links. Accessories are secured with common #4 sheet metal screws.

The expandable socket group is built to handle various socket sets. With the large variety of manufactures distributing a lot of different sets of sockets. I designed this group of organizers to make it easy to customize your organizer to exactly what you want.  

The Grid10 Base Plate

This is the foundation of the system — a universal organizer designed to fit nearly any toolbox drawer. Every plate includes grooves and pilot holes so you can securely mount a wide variety of tool holders, bins, and custom organizers.

Multiple sizes are available, along with edge and corner pieces to let you tile the drawer perfectly from edge to edge.

• Magnet holes (5 mm × 2 mm) are included on the bottom if you prefer not to fill the entire drawer. (Note: holes are slightly loose due to magnet manufacturing tolerances — a drop of glue is recommended.)
• Grooves are spaced 10 mm apart and designed at a 60° angle (2 mm wide at the top, 1.5 mm deep). This allows components to be fastened with a single screw while preventing rotation.

Important Notes:

• Edge models (16 mm, 13 mm, and 10 mm) only have dog-bone link cutouts — no grooves or pilot holes.
• “Edge” models have three sides with link holes and one blank side (these do include grooves and pilot holes).
• “Corner” models come in RH and LH versions (e.g., 025×040 = 25 mm × 40 mm Right Hand, 040×025 = 40 mm × 25 mm Left Hand).

Metric to Imperial Conversion:

To convert mm to inches: divide by 25.4 Example: 10 mm ÷ 25.4 ≈ 0.394"

To convert inches to mm: multiply by 25.4 Example: 0.375" × 25.4 ≈ 9.525 mm

Example:

For a 19.25" wide drawer (≈ 488.95 mm), you could use a 240 mm + 230 mm + 16 mm plate (total 486 mm). The small ~3 mm gap is easily handled with the bottom magnets. Alternatively, swap the 16 mm for a 20 mm plate (total 490 mm) and lightly trim the edge for a perfect fit.

Filament:

I have used Sunlu PLA 2.0+ with great success on all of these prints. I have had no serious issues with warping or fracturing. Always print these models with at least three walls for maximum durability.