This is a remix of the model from https://www.thingiverse.com/thing:2769593. I used the main concept but changed a few items around. I made the side support lengths longer in order to make sure that the phone is secured for going off-road. In addition, I increased the size both in length and width to accommodate larger phones in cases.
This is best printed with PETG or ABS to protect it from the elements mainly the sun. If the back support plate is printed without top and bottom layers with a honeycomb infill it looks nice and cuts down on the print time and material.
No Supports or Rafts needed. The resolution was .2mm with a 15% infill for the backplate, 20% infill for the sides.
The author remixed this model.