• shelf

  • frame

  • brace

  • duty

  • heavy

  • diy

  • bracket

  • angle

  • hardware

  • woodworking

  • repair

  • connector

  • fastener

  • corner

  • m4

  • mounting

  • joiner

  • reinforced

  • L

  • structural

  • slotted

A comprehensive collection of solid, reinforced corner brackets designed for structural projects, DIY repairs, woodworking, or 3D printer frames.

Key Features:

  • Reinforced Structure: Designed with extra thickness and corner fillets to prevent flexing and breaking under load.
  • M4 Optimized: All holes are sized generously for standard M4 screws, allowing for easy assembly.
  • Support-Free: The geometry is optimized to print perfectly without any supports.

The Set Includes Multiple Variations: You can mix and match to find the exact bracket you need:

  1. Widths: Available in standard 20mm (single row of screws) or double-wide 40mm (two rows for extra anti-twist stability).
  2. Lengths: Various leg lengths available depending on how much surface area you need to secure.
  3. Hole Types:
    • Standard Holes: Fixed circular holes for rigid, permanent joints.
    • Slotted (Adjustable) Holes: Oblong tracks that allow you to slide and adjust the parts before tightening them down. Perfect for aligning imperfect joints.

Printing Instructions:

  • Orientation: Print flat on its side (L-shape lying down on the bed) for maximum layer strength across the corner.
  • Material: PETG, ASA, ABS, or PLA+ (Standard PLA is okay for light loads, but PETG/ABS is better for structural integrity).
  • Infill: 30-50% (Grid, Gyroid, or Cubic).
  • Perimeters/Walls: 4 to 6 walls. (For structural parts, adding more wall loops makes the part much stronger than adding infill).

Originality of the Model

The author declares that this work is their personally original model

This model is licensed under the following terms:

Credit must be given to the creator

Only noncommercial uses of the work are permitted

Models(9)

  • model file image
    40x50 8.3mfDesigner

    175.97 KB

    2026-02-17

  • model file image
    40x50 8.STLDesigner

    99.01 KB

    2026-02-17

  • model file image
    40x40 4.STLDesigner

    75.47 KB

    2026-02-17

  • model file image
    40x60 8.STLDesigner

    100.96 KB

    2026-02-17

  • model file image
    40x60 4l.STLDesigner

    73.62 KB

    2026-02-17

  • model file image
    20x60 2l.STLDesigner

    49.30 KB

    2026-02-17

  • model file image
    20x60 4.STLDesigner

    62.97 KB

    2026-02-17

  • model file image
    20x40.STLDesigner

    46.57 KB

    2026-02-17

  • model file image
    20x30.STLDesigner

    48.52 KB

    2026-02-17

  • View all(9)

No more