Góc nối khung 2020 (2020 Extrusion Corner Bracket)

This design is intended to be simple take on corner brackets for printers with square frame such as the ender 5 plus. It uses M3 x 8mm screws and has a small overall footprint. The thicknesses allow for some customization, and is still strong, also no supports required.

Set Top/Bottom layers to Zero if you want an infill pattern for looks inside the triangle.
Set BOTH Top/Bottom AND Infill to zero if you just want to remove the center triangle all together
For Strength, set walls to 4mm
Infill can be set to 0%