Ubiquiti U6 Long-Range - Adapter Plate

My neighbor was redoing their house and asked me to design some stuff for him. One of the tasks was these adapter plates for cleanly mounting these AP's to a backbox in the ceiling construction. 

Requires m3 threaded inserts and M3 countersunk screws to marry this adapter plate to the stock plastic mounting plate. Check which mounting plate comes with your AP before printing the correct (3) or (4) hole version. My neighbor and I discovered much into the construction of their home that Ubiquiti plays games with the design of their mounting plates from model to model (sooooo annoying) and he has a few different plates that all fit multiple AP's.