3DP-MakeBlock-XYP (plotter/drawbot) FULL UPGRADE

3DP MakeBlock XYP (plotter/drawbot) full upgrade.
http://www.makeblock.cc/xy-plotter-robot-kit/

I wasn't happy with the carriage design of the MakeBlock XY Plotter (drawbot) so I took it upon myself to redesign the X & Y axis carriages but I didn't stop there! I basically made my own version of an XY Plotter utilizing 3D printed parts versus extruded aluminum blocks bolted together.
Now there are just 24 (or 28 is using 3d printed pulley holders) 3D printed parts coupled with the Makeblock parts: 8mm bearings/holders (6 total), 4x 8mm linear rods, 4x 18t MXL pulleys (or possibly GT2?), 10x shaft bearings, 3x 3mm OD x 40mm length rod (makeblock provides 56mm length), 1x 3mm OD x 510mm length rod, 3 drive belts provided by Makeblock, some 3/8" (9.5mm) wooden dowels/rod and a handful of 3mm nuts and bolts.

This upgrade will bring the working area from 310mm × 390mm up to 340mm x 400mm which I was very happy with. (roughly 16" x 13.5") Plus with a vertical pen lift mechanism, the d