Gridfinity Triangle Ruler Holder

This is a Gridfinity-compatible holder for triangle rulers, set squares, and flat geometry templates.

I made it for my desk drawer because these tools are awkward to store loose: they slide around, overlap each other, and take up more space than they should. This holder keeps them grouped together as part of a larger Gridfinity stationery setup.

It is designed to complement stackable Gridfinity stationery trays, so rulers, pens, pencils, and small desk tools can live in the same organized drawer system.

Features

Gridfinity-compatible triangle ruler holder
Designed for set squares, triangle rulers, and flat geometry tools
Stackable stationery-tray style
Keeps drawing tools visible and easy to remove
Helps stop flat rulers and templates from sliding around loose in a drawer
Works well as part of a larger desk or drawer organization setup
Simple practical print for stationery, school, drafting, and maker desks

Part of My Gridfinity Desk Drawer Setup

This triangle ruler holder is part of my real Gridfinity desk drawer setup.

In the photos, you can also see these related prints:

They are separate prints, but they work well together as a practical drawer system for triangle rulers, pens, stationery, a calculator, and small desk tools.

Designed to Work Alongside

This model is not a remix of the models below, but it was made to complement the same kind of stackable Gridfinity stationery system:

Stackable Felt Pen Holder - Gridfinity 5x4 by Brent
Colored Pencil Stackable Trays - Gridfinity - 4x5 by EMB3D

Credit to the creators of those models for the matching stackable stationery tray idea.

Compatibility / Fit

Designed for triangular rulers, set squares, and similar flat geometry tools.

Before printing, check:

Ruler length
Ruler thickness
Ruler shape
Whether your ruler has raised grips or bulky edges
Whether the holder footprint fits your drawer layout

Print Recommendations

Material: PLA or PETG
Layer height: 0.20 mm
Walls: 2
Infill: 10-15%
Supports: No, if printed in the intended orientation

Notes

If you are building a Gridfinity stationery drawer, this works best next to pen, pencil, calculator, and ruler trays with a similar stackable format.

If you test it with a specific set square, triangle ruler, or template set, please leave a comment with the fit result so I can improve the compatibility notes.