This model is made of three parts:
Bracket and Square have locating holes. I suggest using a few cyanoacrylate drops to hold them together. I also use 4 1.75mm filament bits as dowels to ensure assembly.
Square has two M3 threadings for duck throne. It may be hard to print precisely. You can simply drill the holes and add M3 screws+nuts.
STEP file is included, feel free to use the bracket and design your own square to fit your printer
Printing parameters:
The author marked this model as their own original creation.