Question to everyone, maybe someone has some insight into what I am doing wrong.
So, this is my first 3d printer build (MPCNC or otherwise). I have the extruder on and wired per the diagrams with the extruder always on fan connected to the power plug, and the other fan on the small funnel connected to the arduino D9 port.
One motor worked for maybe 20 seconds, and then stopped and had an electrical burn smell to it. I bough another fan from a local electronics store, and it did the same thing. These are rated 12 volt, and on fan was a 750 milliamperes, and the other fan said only it is 12 volt.
Is there something I am missing ? My power supply is a standard 12V 14.6 Amp PS. Do I need to put a current limiter inline that I did not see referenced? Can I just put the extruder fan to the D9 port?
I would appreciate any ideas on this.