Shelf support bracket for 3030 aluminum extrusion

This is a shelf support corner bracket that fits 3030 extrusions. Mine are from this vendor: https://8020.net/30-3030.html .

Note that these brackets use a 91 degree angle instead of 90. I found that that let me get the shelves closer to 90 degrees because they always sag/settle a little bit when I remove the support after assembly. I also found that I actually don't need the screws in the vertical extrusion at all.

I used these hardware parts:

- slot nuts: https://www.amazon.com/dp/B0HBVLM1WG

- M6 screws: https://www.amazon.com/dp/B00F33WBDS

- M6 washers: https://www.amazon.com/dp/B0CQ4PJW3Q

Designed in Fusion 360. You can download the CAD model here: https://a360.co/4yuhatB