Printrbot 1405 extruder stepper fan holder

by JadedJak Dec 21, 2014
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how do you wire this to the board?

I run mine with the heat bed relay.

so you would just turn on the bed to keep the fan runing?

Since I leave my bed on for the entire print, the fan is on too. You could wire this up directly to the PS or put a switch in somewhere. It doesnt need to wire directly to the Printrboard to work.