This is a simple phone stand that uses a rubber band for stability.

I recommend printing the test its a small 10min print with 0.4 offset based on that chose which model is good for your printer.

If you have a big phone i would recommend the L holders.

Print Settings

Printer Brand:

FlashForge

Printer: 

Dreamer

Rafts:

Doesn't Matter

Supports: 

Yes

Resolution:

0.2

Infill: 

10%-20%

Notes:

Supports are important for the small overhangs.