Bafang M500 Chain Protector

I had a problem on my bike when my chain from time to time fell off during landings. So I have utilized mounting holes on my Bafang M500 engine to design a simple chain protector. It is held in place by 2 M4x12 screws. I have printed it on my Bambulab A1 using Prusament PC Blend (100C bed, 285C nozzle).