Strong Corner Brackets - multiple variants and sizes, easy to print and free
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Bulding a box? Hardening a chair? You need this brackets! No supports. Strong. Easy to print and Free.
- Rating
- 5 / 5
- Likes
- 193
- Downloads
- 432
- Makes
- 2
- Views
- 1,632
- Reviews
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Updated at source:
Model information
- Source
- Printables
- Category
- Other House Equipment
- License
- Creative Commons — Attribution — Share Alike
Strong and easy to print corner brackets.

Printing tips
- Use stronger materials such as ASA 275, PETG or Modified PLA (e.g. Strongman)
- Set infill to 20%
- Print without supports
- Suggested resolution is 0.2mm
Variants
Small - 25mm

- Three corners - holes for 4mm countersunk head screw
- Three corners - holes for 4mm flat head screw
- Two corners - single - holes for 4mm countersunk head screw
- Two corners - single - holes for 4mm flat head head screw
- Two corners - double - holes for 4mm countersunk head screw
- Two corners - double - holes for 4mm flat head head screw
Medium - 30mm

- Three corners - holes for 5mm countersunk head screw
- Three corners - holes for 5mm flat head screw
- Two corners - single - holes for 5mm countersunk head screw
- Two corners - single - holes for 5mm flat head screw
- Two corners - double - holes for 5mm countersunk head head screw
- Two corners - double - holes for 5mm flat head head screw
Big - 35mm

- Three corners - holes for 6mm countersunk head screw
- Three corners - holes for 6mm flat head screw
- Two corners - single - holes for 6mm countersunk head screw
- Two corners - single - holes for 6mm flat head screw
- Two corners - double - holes for 6mm countersunk head head screw
- Two corners - double - holes for 6mm flat head head screw
Inspiration
I was looking for some nice brackets and I realized, that most popular Corner Brackets are published under less permissive license so I decided to make my own set, better and with more configurations and with free license.
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Enjoy your Corner Brackets and let me know, if you make one for yourself!
Designed with Autodesk Fusion 360 Personal