Topic: gcode hot end fan (SD3 + Sanguinololu)
I am trying to set up the gcode controlled hot end fan on my SD3 and it's standard sanguinololu board..
I followed these instructions: http://solidoodletips.wordpress.com/201 … ruder-fan/
I have all the parts fitted and wired and the fan runs, but it won't be controlled by gcode. It just runs constantly.
Had a look through other threads but couldn't find an answer.
Any suggestions?