I couldnt find anything online that let me use my phone in portrait mode with my backbone one so I made this. Works really well
Magnet used:
https://www.amazon.co.uk/dp/B094DCDPNS
Printing:
Quite easy to print.
I printed from PLA face down with a brim, I added supports for the circle magsafe area and the usb cutout only.
15% infill, higher might be a better idea but 15% works for me.
Installation:
This is hard to explain but easy to do
Slide open your backbone, place the connector over the narrow connecting pice in the middle, and slide it onto the thinker part. Repeat for the other side (see photos)
The author remixed this model.
Added a magsafe mount for use with more phones.