My smartrap

I finally got done building and calibrating my version of smartrap. Because I had issues with slippage on Y axis I switched to belt design based on http://www.thingiverse.com/thing:290851 and also took the tensioner from http://www.thingiverse.com/thing:143410. I had to change steps for unit for Y to 100 and for X to 186 to make it print correct. Also at higher speeds the base is not stable enought and I used ideas from http://www.thingiverse.com/thing:260187. I also added a fan for ramps and some LEDS to print head. Maybe someone better at 3d modeling can help me incorporating a fix into X plate. Next I will print a LCD case on printer itself. Can someone suggest a suitable design for RepRapDiscount Smart Controller?
A small printing video can be found here: https://www.youtube.com/watch?v=vw8YTC2Fy5Q