Right-Handed Phone Mount

This is a right-handed phone mount that keeps your phone angled a bit to keep it pointing to printbed. Note that you do not need any screws – reuse the ones that hold the screen on your ender 3. There is a port for charging below, and the size should accomodate any phone up to phablets size.

No supports needed, however, you should use a brim to have easier time disconnecting the print piece. If print fails above 80%, you can still use it with no problem – that is what happened to me. Just don't be too shy on infill, at least 15% is required with triangles.