I am coming from the 3D printing world and I am trying to upgrade the firmware of one of my printers. I'm working on a Mac and the printer is the Anet A8. It has some form or another of an arduino board. I can't tell if it's a clone or the real deal. Either way, like i said, i'm trying to update the firmware using the Arduino IDE and I can't get the serial port I need to show up under tools to be able to send this update to my printer. I gone through several websites, watched several videos, and installed several drivers to no avail. Please help if you have any ideas that could solve my problem.