3D Printer Things

Stepextruder n Hotend, Nozzle
Direct Drive or Bowden
Fully Assembled Direct Drive Step Extruder/Stepstruder. Kinds of Hotend for Bowden Extruder.
MK7 and MK8 Stepextruder Parts: 0.3mm, 0.4mm Brass Nozzle for 1.75mm Filament, Thermal Core(Heater Core), Single Extruder Chassis Block(Bar Mount), Dual Extruder Bar Mount(Chassis Block), Mould Drive Block, Thermal Barrier Tube(Barrel), Heatsink, Cooling Fan, Thermocouple, Compression Fitting, Cartridge Heater and Kapton Tape.
MK7 Extruder Assembly how to: http://1ppoo.com/mk7/www.makerbot.com/docs/stepstruder-mk7-assembly/index.html