Trying to button up my Prusa I2 and have a question about 12v power. I have the E3D hotend and it is recommended that the cooling fan be hooked up to 12v directly instead of a controllable fan port. Aside from connecting it directly to my power supply is there a port on the RAMPS board to connect the fan to that would allow it to turn on when my power supply is turned on. I would connect it directly to the power supply but I disconnect the power supply for transportation as it is not mounted to my printer.
I was afraid of that. Thanks. I think what I’ll do is connect a detachable plug into the power supply plug with a matching plug on the fan. That way when I detach the power supply I can also detach the fan. Something to note for my next generation printer.