Sidney i3

Aluminum Frame i3 Base on prusa i3
Include a new design to eliminate backlash of lead screw

I use this X Carriage
http://www.thingiverse.com/thing:586636

Water Cooled Extruder
http://www.thingiverse.com/thing:1122033

Frame BOM:

https://docs.google.com/spreadsheets/d/1NMDV64ITaBIcRH5-fehJkepfXq_T5dhFiu3tFgBau-k/pubhtml

2016/03/25 UPDATE!!
NEW version of X end、X end motor，more stable!
X end、Y end now have two options for pulley screw(M5、M3)!