When mowing the lawn I never have a good place to put my phone. I listen to music and use wired ear bubs. After sitting on my phone for several years and dropping it repeatedly, I decided to come up with a better solution. This was designed to mount under the seat at the front edge, between your legs.( under side mount.)
1) It was designed to be printed at 100% infill.
2) If the STL shows up as a dot on Cura scale to 2540. ( metric translation)
3) three ready sized STL in file folder. (biggest for iPhone 7 with large Survivor case)
4) included F360 parametric file for resizing.
thick - phone thickness
length - phone length
wide - phone width