Tell us about yourself!
Could use an ESP8266 instead of the original arduino.So time can be syncroniszed via NTP and the functions are acessible via WLAN.
Look at this enhancement:http://www.ikeahackers.net/2016/03/automated-ikea-...This painting combined with the motor is awesome!
Use a one time knife for cutting, heat it with a lighter. You get much smoother edges.