About this 3D model
Remixed from the vent mount desing from @bydonan For my RHD mx-5 I just printed his eyeball vent insert as is, it can mount either way 'up' to present in the vent side that suits. I then designed my oneplus 7 mount to fit the socket and postition the phone in what I'd consider an optimal position. This requires supports to print the 'arm' it includes integrated option for holding a usb-c cable in position for charging.