First, in my Smoothieware config file I set delta_current from 0.5 to 0.3.
Next, I made a new switch module called fan2, It looks like this:
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#PWM control for PG35L fan switch.fan2.enable true # switch.fan2.output_type pwm # switch.fan2.startup_state true # switch.fan2.startup_value 125 # switch.fan2.output_pin 0.26 # switch.fan2.max_pwm 255 #
When you power up the fan briefly goes to full power and then drops down and stays at half power. The result is that the E3D V6 fan is now the noisiest thing on the machine, and that's not bad at all.