Tarantula++ obo Prusa

thingiverse

Update January 22, 2017* Enclosure for electronic: http://www.thingiverse.com/thing:2055053 This is my design, a Prusa-like 3D printer, largely inspired by the Tevo Tarantula. The goal is best accuracy and precision. Main features: Aluminum profile 2040 for frame and all axes Printed bracket corners are very rigid, making alignment easier Rails for each axis (MGN12 from Hiwin) Motors with 400 steps per turn Dual extruder, dual hotend Horizontal Y belt with only two pulleys Z dual motors with leadscrew Parts list: Aluminum 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 x3 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'd in fiberglass plate or similar