Rostock Max Assembly Guide
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20 –Wiring the Heated Bed
20.1 – For this task, you’ll need to remove the Heated Bed from the base and install the LED and
1k resistor as shown below. Make sure to orient the “flat spot” on the LED to the right. The flat area
marks the Cathode or “-“side of the LED. The 1k resistor limits the voltage in order to prevent the 12v
Heated Bed power from blowing the top off the LED.
Figure 94 - Power LED installed.
20.2 – Mount the thermistor to the heated bed. Thread the thermistor leads through the holes
shown below and place a small amount of tape over the leads where they enter the Heated Bed. Apply
a small amount of RTV over the thermistor. This will affix it to the board and protect it. Flip the board
over and solder the leads in.
Figure 95 - Thermistor soldered & affixed in place.