CTC Prusa i3 Clone Pro B (after modifications) / printing of the

I made modifications this CTC 3D printer (Z End mod, added flexible couplings for Z Axis, X Axis mod, Y Axis mod, rotated heatbed, controlled hot-end cooling, added fan for cooling the printed model, extruder upgrade to MK9, changed mosfet on GT2560 board, G-LCD Graphical LCD, installed FW Marlin 1.1.3 Stable version and many other things) to improve print quality and eliminate wobbling. Now it works great.
fan duct:
www.thingiverse.com/thing:206...
extruder upgrade:
www.thingiverse.com/thing:220...