Tarantula++ obo Prusa

• update 22/01/17* Enclosure for electronic: http://www.thingiverse.com/thing:2055053

This is my design Prusa like 3D printer, largely inspired from Tevo Tarantula.
The goal is best accuracy and precision.

Main features:

Alu profile 2040 for frame and all axis
Printed bracket corner very rigid and making alignment easier
Rails for each axes (MGN12 from Hiwin)
Motors 400 Steps/turn
Dual extruder, dual hotend
Horizontal Y belt with only two pulleys
Z dual motors with leadscrew
Electronic 32 bits MKS SBASE

Parts list:
Aluminium profile 2040:

• X 440mm x1
• Y 450mm x1
• Frame 450mm x2 + 360mm x2

Z lead screw 350mm x2 , TR8x8, or better TR8x2
Rail X HiWin MGN12 , 360mm x1
Rail Y HiWin MGN12 , 420mm x1
Rail Z HiWin MGN12 , 400mm x2
Micro switch x 3
Motor Nema17-40mm, 400 step/turn, x2 (for X and Y)
Motor Nema17-40mm, 200 step/turn (for Z), preferably with leadscrew integrated
Extruder x2 (pick the one you want, like bulldog)
hex screw M5x10 xalot
hex screw M5x35 x1
hex screw M5x30 x3
hex screw M3x10 flathead xsome
Tnut M5 xalot
Tnut M3 xalot
Pulley 20teeth M5 GT2 x4
Pulley 20teeth M5 (for motor) GT2 x2
Belt gt2 2.2m
Dual hotend chimera type
X carriage and Y bed support are cnc'ed in fiberglass plate or similar