Reply To: MPCNC Heat Bed Requirements

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#25232

Bill
Participant

The RAMPS is already setup for a heat bed, you feed the extra power in to the second two terminals from the 12V supply. The heat bed itself has power supply lines that plug into the second terminal block. You need the bigger power supply, normally the steppers handle things quite well with 5A, with the heat bed you need an extra 11A. There is a thermistor included with the heat bed, you plug it into the RAMPS where the resistor is for non printing applications.