I made this holder for an old android phone that I use to run the Mobileraker app.
All models are optimised for printing and no support needed.
You need:
Attention! only for 300, 400 and 500 V-Core 3.1 ! The distance of the corner-brackets are different on the 200 V-Core 3.1 .
The author remixed this model.
I modified the phone holder mounting part, from M4 to M6.