Hello!
I am building my own 4axi drawing machine using an Arduino Uno on my MAC OS Mojave, Version 10.14.6. My aim is to create generative drawing later on. 
My problem is that the machine is already build and except of one final touch everything worked pretty well, meaning I've been able to upload to the board a couple of days ago. But now all of the sudden nothing works at all. >:(
So these are the steps I've been going through when connecting the Arduino UNO to my MAC OS Mojave and the 4AxiDrawing Machine:
1.) I've installed GRBL and put it into '/Users/'laurakrok'/Documents/Arduino/Libraries'. When uploading the code to Arduino IDE it now says it's not possible.
2.) I've selected the correct board type (Arduino Uno) but I can't find the correct port which showed up a couple of weeks ago. I've also tried a new USB 2.0 cable for this, but still no luck. The correct USB port just doesn't show up! My MAC OS is saying that the the USB-equipment is deactivated though. Can it be that the machine is taking too much power consumption so I would need a USB 3.0 cable instead?
That's more or less it. Can you help me?
Thank you!
