Lego Train Switch Servo Mount

Another version of Servo Mount for Lego Train Switch. The others simple do not suit me well. All parts are printable, you will only need SG90 9g micro servo with a small screw (usually part of servo) and sure, the original lego switch track part.
I control this with Arduino. Because I wanted to play with it a little bit, four switches can be controled at once by Arduino using infra red reciever (using original lego remote control) or with Android application using Bluetooth 4.0 (BLE).
If somebody would like to try, I can provide my Arduino and Android application source codes.