Red PCB Heated Heat Bed Heatbed MK2B Upgraded MK2A for Mendel RepRap CNC 3D Printer Hot Bed HotBed Support 12V 24V
Note:
Measured PCB above the heating copper skin resistance of about 1.5 ohm.
1 if MOSFET is driven by GEN4, the heat sink is required. According to the experience, if not the MOSFET heat sink, continuous heating about 10 minutes to burn MOSFET. Proposed using relay driver. Melzi and mightyboard do not need a relay.
2 the power consumption of the whole machine may be greater than 300W. Please use the full power of the power.





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