@Chris_Miller hi Chris, I tried switching power supply to a different output but same thing
Ok. Accessing the grbl prompt is key to troubleshooting so definitely also try that. Are you using universal Gcode sender or chullipeppr? Or something else?
@Chris_Miller I wanted to try chili pepper, but having issues installing the one thing on my Mac 
So what are you using? Then I can give more specific tips.
If you can connect using “universal g code sender” try like @Chris_Miller said and issue the $$ command.
@Marc_Schaefermeyer sorry guys @Chris_Miller I’ve been trying to get chili pepper but haven’t been able to get the serial port to connect me to to the server
Ok, can you connect with universal gcode sender? If not, what error message or feedback are you seeing? If you’re seeing garbage, that’s a good sign, and you’re probably at the wrong baud rate. Go with what you know, and we can figure this out…
@Chris_Miller Chris universal code sender won’t work in Mac, let me go back to grbl
Grbl is on your Shapeoko machine and you’re probably stuck with it. You need something to communicate with grbl over serial connection. Chillipeppr and UGS are a couple of options. Also as someone suggested, you might be able to connect with the Arduino IDE. You should be able to connect with one of these tools. If not, your Arduino is probably fried or your connection parameters are not correct. If you can connect by one of these methods, you know your electronics are at least partially ok. So it’s important to try and connect or at least get some error message at this level. If you can’t, you don’t know which direction to look.
If UGS doesn’t work in Mac, you might try iterm. I know I’ve used it on my Mac.
+Peter van der Walt Pete, which file do i download for mac?
+Peter van der Walt I think that’s overkill. If you can flash grbl 1.1e, then you know your Arduinio and serial connection are working, but then you have a lot more setup and troubleshooting to do. That may very well work, but your steppers may still not power up and you’re left with an even bigger mess. Why not try just communicating with the existing grbl install over serial?
@Chris_Miller iterm?
If it was working previously you don’t need 1.1e. This is just a stab in the dark. Might as well reinstall OSX while you’re at it. Serial communication is very simple and it either work or it does not. Grbl either works or it does not. If not, then maybe reflash 1.1e. But we don’t even know if it’s working.
@Chris_Miller lol ok so how do I get the arduino IDE?? 
+Peter van der Walt im just confuse lol I appreciate everybody’s advice!! Thanks!!
I don’t recommend the Arduino IDE at this point. How did you connect and send gcode previously? That’s what I recommend because you know it worked at some point. Use what you know works to troubleshoot rather than guessing with a new, unknown setup. You could reflash grbl but you don’t know that’s the problem. You haven’t yet confirmed that your serial connection is working.
@Chris_Miller ive been trying to troubleshoot with grbl thats what ive always used in the past, i also installed java last wiek, that might of cause the conflict not sure
Grbl is the software that runs on your arduino outside of your computer that turns gcode into motion. There is also a software component that runs on your computer that sends gcode files to grbl over a USB connection. It’s typically universal gcode sender or chillipeppr. If it’s not one of those you could download a piece of Mac software called iterm that may help to troubleshoot, but it’s not typically used for CNC stuff. You must be using one of these to talk to Grbl, because you can’t’ use grbl on it’s own to send gcode. What software did you use in the past to send gcode to grbl? Java is required to use universal gcode sender, so maybe you’ve used that in the past?
@Chris_Miller I tried another program from google chrome, but it seems that serial port it’s. It being found