60 Degree angle for 2020 with slot

60 degree angle block. One of the m4-sized holes is a slot to make it easier to tighten the screw on the other arm

Edit: I've made a more customizable version here.

Print Settings

Printer:

flsun prusa i3 (modified)

Rafts:

No

Supports:

No

Resolution:

.20

Infill:

15%