Shelf bracket
Load-bearing shelf bracket with a diagonal gusset and countersunk wall holes.
Loading viewer…
Dimensions
160 mm
140 mm
40 mm
6 mm
No account, no credit. Want it in 3MF or STEP, or a shape that isn't here? Describe it instead.
What you can change
- Vertical arm
- 60–400 mm · default 160 mm
- Horizontal arm
- 60–350 mm · default 140 mm
- Width
- 20–120 mm · default 40 mm
- Thickness
- 3–20 mm · default 6 mm
This part is generated from a hand-written, print-tested OpenSCAD module — the same numbers always produce the same geometry. It is not an AI guess, and it does not cost a credit. Before a load-bearing or fit-critical print, check it against our design guide for wall thickness, overhangs and orientation.
Print notes for this part
- The diagonal gusset is what carries the shelf load, not the corner joint — print it standing on the vertical arm so the gusset's layer lines run along its length, in compression, rather than across it.
- Raise infill to 40-50% for anything meant to hold real weight; the default slicer infill (15-20%) is sized for dimensional parts, not load-bearing brackets.
- Two brackets per shelf is rarely enough past about 40 cm of span in PLA — add a third at the midpoint, or move to PETG.
More guides
Free Parametric TemplatesProven starters — brackets, knobs, gears, boxes. Set the dimensions and download the STL, no account.AI STL GeneratorDescribe a part in plain words and get a validated, printable STL/3MF/STEP file.Photo to 3D Print FileTurn a photo — a portrait for a lithophane, or a broken part — into a printable file.Replace a Broken PartPhotograph a snapped bracket, clip, or gear and get a printable replacement.Image to 3D PrintSkip the Inkscape-to-CAD vector pipeline — turn a JPG or PNG into a printable file directly.AI Bracket & Mount GeneratorDescribe a custom bracket, mount, or enclosure and get a file that fits.3D Printing Without CADFor makers who already print and slice, but don't want to learn CAD for one-off parts.Fix Non-Manifold EdgesWhat non-manifold geometry is, how to repair it in Blender, and how to skip the repair step.Design for 3D Printing (DfAM)Watertight is not enough — wall thickness, overhangs, fits, and orientation for AI-generated STLs.AI Miniature GeneratorDescribe a D&D or tabletop figure and get a printable STL — no ZBrush or Blender.What Is an STL File?What STL stores, why printers use it, how it differs from OBJ/STEP, and how Formo builds one from text.Free AI 3D Generators ComparedHands-on July 2026 look at which free AI 3D tools actually let you download a printable file.