This is a power panel for 300W ATX power supply.Printing with the following settings in my Prusa i3 takes 4 hours; Material 1.75mm ABS. Head=240�°C, Bed=110�°C. Layer height= 0.25 mm. Shell thickness=1.5 mm Bottom/Top thickness=1 mm Fill density= %40. First layer=0.30 mm. Travel speed=150 mm/s. Bottom layer speed=30 mm/s. Infill speed=60 mm/s. Outher shell speed=30 mm/s. Inner shell speed=40 mm/s. Display: In-Line Voltage and Amperage Meter from Hobby King. 2x10 ohm/11W parallel resistor connected to the 5v line.