Rackfinity v1.0 Core — tilted Gridfinity shelf

Flat Gridfinity stacks hide labels and eat desk space. Rackfinity tips the bays toward you — plug it together, done, and grow it by bay and by level.

What it is

Rackfinity tilts every bay 30° toward you: labels and contents stay visible and easy to grab. Everything prints without supports — the tilt only appears when you stand it up.

The shelf is made of just a few printed parts:

• Shelf — Gridfinity 5 × 2, compatible with classic Gridfinity feet (Gridfinity by Zack Freedman)

• Side — carries the shelves, stackable

• Foot — bottom side piece of each column

• Pin — hex 5.8 mm A/F × 18 mm, joins stacked sides

• Wall bracket — optional, for wall mounting

Shelves plug into the sides with a double dovetail. Stacked side pieces can additionally be joined with one M3 screw each (optional, see below). One more bay or one more level: same parts, different counts. Ø 6 × 2 mm magnets in the shelf sockets are optional — most people only fill the cells they actually use.

Printing

• The sides print upright on their stacking face (the 30° face): 86.6 mm tall on a base only 15 mm wide. A brim of about 5 mm keeps them firmly on the bed.

• The window top of the side is a bridge of about 50 mm — your printer needs to bridge cleanly; fine with a well-tuned profile.

• The pin lies flat on one hex face, the foot flat on its side.

• Print set: NGN-RFY-SET-v1.0_platten.3mf holds 2 shelves, 4 sides, 2 feet, 2 wall brackets and 10 pins on 2 plates (250 × 250 mm), with the brim for the sides already set — about 450 g PETG plus a few grams for the pins (slicer values as in the table, 0.2 mm, standard profile).

• The foot and the side have a Ø 2.5 mm core hole on top for the optional M3 screw. It prints horizontally, so it won't come out perfectly round: drill it to 2.5 mm or tap M3 if needed.

• The fit is intentionally on the forgiving side so it works on less finely calibrated printers too.

• Optional: felt pads under the feet.

Hardware

Where to buy (examples): screws · wall plugs

Bill of materials

For a shelf C bays wide and R levels high:

Example 2 × 3 (2 bays wide, 3 levels high): 3 feet · 6 sides · 6 shelves · 12 pins · optionally 6 M3 screws. Overall size approx. 467 × 78 × 259 mm (W × D × H).

Gridfinity bins are not included — print matching bins separately.

M3 screws (optional)

On top of the pins, every stacking joint can be secured with one M3 screw: it goes in through the window of the upper side, through its Ø 3.6 hole at the bottom, and into the Ø 2.5 core hole of the part below (side or foot).

• Recommended: M3 × 8 socket head (ISO 4762 / DIN 912) — fits both joints.

• Derived from the CAD: 1.6 mm floor under the screw head, core hole about 8.5 mm deep in the foot and 10 mm in the side. An M3 × 8 engages about 6.4 mm and stays about 2 mm clear of the hole bottom in the foot.

• M3 × 10 only fits between two sides; in the foot it bottoms out.

Wall mounting (optional)

Two countersunk screws per wall bracket:

Series

Rackfinity is a kit: Core now, more sizes and shelf variants to follow on the same side system.

Changes

v1.0 (2026-11-01) — first public release: shelf 5 × 2, side, foot, hex pin 5.8 × 18 and wall bracket; stacking joints can optionally be screwed with M3.

License

CC BY-NC-SA 4.0 · ngnrd — remix welcome, with attribution, non-commercial, share alike.

Feedback and photos of your prints are welcome — they shape the next version.