Specifications linear ball bearings: 8 and 10 mm (0.314" and 0.393") technology: FFF (Fused Filament Fabrication) for PLA and ABS power supply: 15V DC / 6,6A max. Connection: FTDI USB 2.0 to Serial dimensions of printable area: 20 x 20 x 20cm / 7.87 x 7.87 x 7.87" typical printing speed: 120 mm/s heated bed: max. temperature 60°C maximum print speed: 150 to 300 mm/s (depending on the object to be printed) extrusion nozzle: 0.5 mm extrusion thermistor: NTC 100K extruded aluminum profiles: 27.5 mm / 1.08" wide movement: 4 NEMA 17 stepper motors resolution: nominal mechanical resolution: X and Y: 0.015 mm / 590.55 µin (smallest step the printing plate can move in the X and Y direction) Z: 0.781 µm / 30.74 µin(smallest step the printing plate can move in the Z direction) nominal printing resolution: Wall thickness (X,Y): 0.5 mm / 0.019" Layer thickness (Z): 0.20 - 0.25 mm / 0.0078 - 0.0098" dimensions: width: 50cm / 19.7" depth: 42cm / 16.5" height: 62cm / 24.4" weight: 9Kg / 19.84lbs software: Repetier version 0.84 and up www.repetier.com included: 5m PLA black sample