A paper tray sized for US Letter (8.5" x 11" / 215.9 x 279.4 mm), sized to sit on a standard Gridfinity baseplate.

Outside footprint: 251.5 x 293.5 mm (6 x 7 Gridfinity cells)

Wall height: about 44 mm default, about 30 mm for the Short variant

Inside fits a standard US Letter sheet with margin

Stackable: yes. v2 uses the spec Gridfinity stacking lip profile, so these trays stack cleanly with each other and with any Gridfinity-spec bin or tray from any creator.

Note: v2 (May 2026) introduces the stacking lip. Older v1 prints do not have matching geometry and will not stack with v2 prints.

Prints in two parts. The 293.5 mm Y dimension exceeds most 256 mm beds, so split the model along the long axis using Bambu Studio's cut tool before slicing. Optional: use a dovetail joint at the cut for stronger glue-ups.

Need A4? A separate A4 listing is planned so metric users do not have to dig through US Letter profiles.

Profile options:

Default: 0.2 mm, 3 walls, 15% infill

Cut-Outs: front V-cut plus side finger notches for easier paper grab

Thin Flat Bottom: no Gridfinity base, fastest smooth-bottom print

Filled Solid Bottom: smooth bottom with the original base thickness filled in

Short Stackable: about 30 mm walls for sorting paper types in a drawer

Want a custom label on the back wall? Comment below. The OpenSCAD source exposes a text_label parameter, happy to generate a labeled version for anyone who asks.

Designed in OpenSCAD with kennetek/gridfinity-rebuilt-openscad. Spec-compliant 7 mm Gridfinity base.