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Hex Wall Shelf

A floating shelf is usually a rectangle — useful, but not something you would point at. This one is a hexagon with the bracket designed out of sight: a 20 mm mounting plate is built into the back of one facet, so you hang it on two screws and the hardware ends up inside the shelf instead of under it. 219 mm across the points and 120 mm deep, which is enough to hold real things.

A black hexagonal shelf mounted on a white wall, holding a mosaic snowman candle holder in a blue tile top hat

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One part on one plate. The 3MF carries the profile the reference print was made with, supports and brim included, and the STL is in there for bringing your own.

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The 3MF is the faster path — open it and slice. A full print & use guide is attached to the Creality listing.

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Print & Use Guide

The same guide attached to the model listings, hosted here so you can read it before you print — PDF · 5 pages · 729 KB

Open the Guide

Before You Slice

Check Your Bed

This will not fit a 220 × 220 mm bed. The part is 219.4 × 190.0 × 120.0 mm, and the 5 mm brim takes the plate footprint out to roughly 230 × 200 mm. A 235, 256 or 260 mm bed takes it comfortably. It is worth checking before you start an eight-hour print rather than after.

What Makes It Work

The Bracket Disappears

The hexagon hangs on a flat top facet and sits on a flat bottom one, so it squares itself against the wall and gives you a level floor to set things on. Everything below is about what happens at that top facet.

The empty shelf face on against a white wall, the mounting plate spanning the inside of the top facet with both screw heads sunk into it
Hidden Mounting Plate
A 20 mm plate is built into the back edge of one facet and drilled for two screws 75 mm apart. Mount that facet at the top and the whole bracket ends up inside the shelf — from the room all you see is the two screw heads, deep in the top facet and in shadow.
Close view of the printed mounting plate inside the shelf, with its two countersunk screw holes
Two Holes, 75 mm Apart
Both holes are 6.35 mm clear, which takes a #8 screw, and 75 mm of spacing lands them either side of a stud line or on two anchors you can level by eye. Drive them with T25 star drive and the MakerX T25 Cap presses over the socket, so even those heads disappear.
A hand gripping the lower right edge of the mounted shelf, giving the scale of the hexagon
Deep Enough To Actually Use
120 mm from the wall to the front rim, with a 180 mm opening across the flats. That holds a real pot, a mug or a stack of small things rather than one tea light. A 3 mm lip runs along the front of the floor, so pens, dice and small pots stop at the edge instead of walking off it.
The shelf at night with a lit candle holder inside it, the glow picking out the six angled interior facets
Hexagons Tile
Two or three at staggered heights read as one piece of wall art rather than three shelves. The front rim carries a 2 mm round-over, which is a small thing that makes it look like a finished object instead of a printed box.

Print Settings

Slice It Right

These are the settings the reference print was made with, on a Creality Hi 2 with a 0.4 mm nozzle. The 3MF carries the full profile — open it in Creality Print or any slicer that reads 3MF projects and it is ready to go.

It is a real print: 381.93 g and about 8 h 33 m, 128.05 m of filament, roughly $11.46 in material. 373.94 g of that is the part and 7.99 g is support.

It ships oriented, so there is nothing to rotate — mounting plate flat on the bed, rounded front rim up. The tree supports are not there for the plate; they carry the front lip, which ends up 116 mm in the air. They twist out by hand.

Print it in PETG if it is going to hold weight or sit in direct sun. The reference print is PLA and it is fine for decor, but the whole load hangs off two screws through a printed plate, and PLA creeps when it is warm.

Supports
Tree, Auto 30°
Layer Height
0.20 mm
Walls
4
Top / Bottom
5 / 5
Infill
25% Gyroid
Brim
5 mm, outer + inner
Material
PLA · 220 °C / 60 °C
The Part
219.4 × 190 × 120 mm · 8h 33m
Slice data: one part on one plate, 381.93 g and 8 h 33 m, with 7.99 g of tree supports

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Released under CC BY-NC-ND 4.0 — free for personal use, credit appreciated, no commercial use or derivatives.