3018/GRBL CH34x VS osX Catalina & Big Sur - Could you help me

Hello,

After a month trying to figure where my problem is, i try to put a bottle in the sea here:

I have a problem connecting my cnc/laser 3018 to grbl 1.1f on my Mac (which was in Catalina) and has now been downgraded to Big Sur 11.7.4. And all of this with the latest version of lightburn. I have been reading the forums for 1 month and so I would like to submit my question to you.

I bought a small second-hand laser engraver cutter a month ago.
The super friendly seller gave me a demonstration of how he used lightburn (which I already knew from fablabs) on his PC, in short my problem is certainly not with the machine since it worked very well and It works if I use its control panel.

I tried to connect it to my Mac running Catalina and after many attempts I still can’t get Lightburn to communicate with my machine running GRBL.

So I downgraded on osx Big Sur telling myself that it might be a conflict between the ch34x driver and Catalina but in fact my 3018 and lightburn do the same thing to me:

If I connect my machine and go to system information / USB I see a “USB Serial” device with the vendor name 0x1a86 which I think looks good.

When I do “ls /dev/tty*” I see two new devices:

/dev/tty.usbserial-14340 /dev/ttysf
/dev/tty.wchusbserial14340 /dev/ttyt0

When I turn on lightburn and choose one or the other in the console I see. “Grbl 1.1f [‘$’ for help]”

But if I try a “$” or “$$” no response. And when I check the button to see all the messages in the lightburn console the machine emits a g0 code in a loop.

So my computer sees the machine which responds with the message “I exist” but there is a communication problem afterwards.
I thought it could be related to my usb hub, but I tried 3 and all work for connection but not for control, sending messages to the machine. And I have to do it with a hub, my MacBook Pro only has USB-C as a USB port.

I tried lots of machine settings, baud rate and a whole bunch of options but it’s always the same thing.

Would the fact that there are two ttys that are created when I connect the machine and not just one pose a problem?

I would really like to buy lightburn, does anyone have a solution to my problem?

Thanks in advance

Xavier

Not on Mac. Are your USB hub 2.0 or 3.0?
If 3.0 try with the cheapest 2.0 hub you can find.

1 Like

This says the PC with Lightburn is talking to the laser controller board, BUT the controller is ignoring the GRBL commands.

Do you have a friend with a Windows computer that can test this? You need to determine if it is the controller or the MAC that is the problem.

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Hello

Thank you for your help. I will try to find a usb 2 hub.
I could trry to find a pc, but i know it will work, what i want is be able to cmunnicate with my laptop. A simple MBP, not a wired configuration.

Here is a sample of the lightburn debug log. Is it readable for someone ? Does it tell something to someone ?

19:30:19.968  D: "LightBurn 1.6.00"   "ven. juin 21 2024"
19:30:20.079  D: "Connexion..."  busy:  false  state:  1
19:30:20.082  D: O: "G0\n"
19:30:20.337  D: "Connexion..."  busy:  false  state:  1
19:30:20.337  D: O: "G0\n"
19:30:20.593  D: "Connexion..."  busy:  false  state:  1
19:30:20.596  D: O: "G0\n"
19:30:20.850  D: "Connexion..."  busy:  false  state:  1
19:30:20.851  D: O: "G0\n"
19:30:21.107  D: "Connexion..."  busy:  false  state:  1
19:30:21.109  D: O: "G0\n"
19:30:21.365  D: "Connexion..."  busy:  false  state:  1
19:30:21.366  D: O: "G0\n"
19:30:21.621  D: "Connexion..."  busy:  false  state:  1
19:30:21.623  D: O: "G0\n"
19:30:21.878  D: "Connexion..."  busy:  false  state:  1
19:30:21.879  D: O: "G0\n"
19:30:22.136  D: "Connexion..."  busy:  false  state:  1
19:30:22.138  D: O: "G0\n"
19:30:22.393  D: "Connexion..."  busy:  false  state:  1
19:30:22.395  D: O: "G0\n"
19:30:22.649  D: "Connexion..."  busy:  false  state:  1
19:30:22.650  D: O: "G0\n"
19:30:22.906  D: "Connexion..."  busy:  false  state:  1
19:30:22.907  D: O: "G0\n"
19:30:23.163  D: "Connexion..."  busy:  false  state:  1
19:30:23.165  D: O: "G0\n"
19:30:23.420  D: "Connexion..."  busy:  false  state:  1
19:30:23.423  D: O: "G0\n"
19:30:23.676  D: "Connexion..."  busy:  false  state:  1
19:30:23.678  D: O: "G0\n"
19:30:23.932  D: "Connexion..."  busy:  false  state:  1
19:30:23.935  D: O: "G0\n"
19:30:24.189  D: "Connexion..."  busy:  false  state:  1
19:30:24.190  D: O: "G0\n"
19:30:24.445  D: "Connexion..."  busy:  false  state:  1
19:30:24.448  D: O: "G0\n"
19:30:24.712  D: "Connexion..."  busy:  false  state:  1
19:30:24.714  D: O: "G0\n"
19:30:24.969  D: "Connexion..."  busy:  false  state:  1
19:30:24.971  D: O: "G0\n"
19:30:25.227  D: "Connexion..."  busy:  false  state:  1
19:30:25.228  D: O: "G0\n"
19:30:25.485  D: "Connexion..."  busy:  false  state:  1
19:30:25.488  D: O: "G0\n"
19:30:25.742  D: "Connexion..."  busy:  false  state:  1
19:30:25.744  D: O: "G0\n"
19:30:26.000  D: "Connexion..."  busy:  false  state:  1
19:30:26.002  D: O: "G0\n"
19:30:26.256  D: "Connexion..."  busy:  false  state:  1
19:30:26.257  D: O: "G0\n"
19:30:26.514  D: "Connexion..."  busy:  false  state:  1
19:30:26.517  D: O: "G0\n"
19:30:26.771  D: "Connexion..."  busy:  false  state:  1
19:30:26.772  D: O: "G0\n"
19:30:27.028  D: "Connexion..."  busy:  false  state:  1
19:30:27.031  D: O: "G0\n"
19:30:27.285  D: "Connexion..."  busy:  false  state:  1
19:30:27.286  D: O: "G0\n"
19:30:27.541  D: "Connexion..."  busy:  false  state:  1
19:30:27.542  D: O: "G0\n"
19:30:27.798  D: "Connexion..."  busy:  false  state:  1
19:30:27.801  D: O: "G0\n"
19:30:28.055  D: "Connexion..."  busy:  false  state:  1
19:30:28.056  D: O: "G0\n"
19:30:28.156  D: Enumerating ports:
19:30:28.157  D: Port: "cu.usbserial-14340"
19:30:28.157  D:       Valid Candidate:  true
19:30:28.157  D:       PID: 29987 VID: 6790
19:30:28.157  D:       Manufacturer: "Generic"
19:30:28.157  D:       Description: "USB Serial"
19:30:28.157  D:       System Loc: "/dev/cu.usbserial-14340"
19:30:28.157  D:       Serial: ""
19:30:28.157  D: 
19:30:28.157  D: Port: "tty.usbserial-14340"
19:30:28.157  D:       Valid Candidate:  false
19:30:28.157  D:       PID: 29987 VID: 6790
19:30:28.157  D:       Manufacturer: "Generic"
19:30:28.157  D:       Description: "USB Serial"
19:30:28.157  D:       System Loc: "/dev/tty.usbserial-14340"
19:30:28.157  D:       Serial: ""
19:30:28.157  D: 
19:30:28.157  D: Port: "cu.wchusbserial14340"
19:30:28.157  D:       Valid Candidate:  true
19:30:28.157  D:       PID: 29987 VID: 6790
19:30:28.157  D:       Manufacturer: "Generic"
19:30:28.157  D:       Description: "USB Serial"
19:30:28.157  D:       System Loc: "/dev/cu.wchusbserial14340"
19:30:28.157  D:       Serial: ""
19:30:28.157  D: 
19:30:28.157  D: Port: "tty.wchusbserial14340"
19:30:28.157  D:       Valid Candidate:  false
19:30:28.157  D:       PID: 29987 VID: 6790
19:30:28.157  D:       Manufacturer: "Generic"
19:30:28.157  D:       Description: "USB Serial"
19:30:28.157  D:       System Loc: "/dev/tty.wchusbserial14340"
19:30:28.159  D:       Serial: ""
19:30:28.159  D: 
19:30:28.159  D: Port: "cu.Bluetooth-Incoming-Port"
19:30:28.159  D:       Valid Candidate:  true
19:30:28.159  D:       PID: 0 VID: 0
19:30:28.159  D:       Manufacturer: ""
19:30:28.159  D:       Description: "incoming port - Bluetooth-Incoming-Port"
19:30:28.159  D:       System Loc: "/dev/cu.Bluetooth-Incoming-Port"
19:30:28.159  D:       Serial: ""
19:30:28.159  D: 
19:30:28.159  D: Port: "tty.Bluetooth-Incoming-Port"
19:30:28.159  D:       Valid Candidate:  false
19:30:28.159  D:       PID: 0 VID: 0
19:30:28.159  D:       Manufacturer: ""
19:30:28.159  D:       Description: "incoming port - Bluetooth-Incoming-Port"
19:30:28.159  D:       System Loc: "/dev/tty.Bluetooth-Incoming-Port"
19:30:28.159  D:       Serial: ""
19:30:28.159  D: 
19:30:28.312  D: "Connexion..."  busy:  false  state:  1
19:30:28.315  D: O: "G0\n"
19:30:28.569  D: "Connexion..."  busy:  false  state:  1
19:30:28.570  D: O: "G0\n"
19:30:28.826  D: "Connexion..."  busy:  false  state:  1
19:30:28.828  D: O: "G0\n"
19:30:29.083  D: "Connexion..."  busy:  false  state:  1
19:30:29.086  D: O: "G0\n"
19:30:29.340  D: "Connexion..."  busy:  false  state:  1
19:30:29.342  D: O: "G0\n"
19:30:29.599  D: Entering serial port disconnect
19:30:29.599  D: Serial non null
19:30:29.599  D: Finishing serial port disconnect
19:30:29.599  D: Align output unchecked
19:30:29.601  D: EV: 1001 took 9 uS
19:30:29.601  D: Align output unchecked
19:30:29.602  D: EV: 1001 took 5 uS
19:30:29.602  D: EV: 1030 took 4 uS
19:30:29.602  D: EV: 1031 took 2 uS
19:30:29.602  D: Any ID allowed
19:30:29.602  D: Looking for port: "cu.usbserial-14340"
19:30:29.603  D: -- candidate port PID 0 VID 0
19:30:29.603  D:     mfr:  ""
19:30:29.603  D:     prod: "incoming port - Bluetooth-Incoming-Port"
19:30:29.603  D:     name: "cu.Bluetooth-Incoming-Port"
19:30:29.603  D: -- candidate port PID 29987 VID 6790
19:30:29.604  D:     mfr:  "Generic"
19:30:29.604  D:     prod: "USB Serial"
19:30:29.604  D:     name: "cu.usbserial-14340"
19:30:29.604  D:  - found matching port name
19:30:29.604  D: Found port: PID 29987 VID 6790
19:30:29.604  D: Manufacturer: "Generic"
19:30:29.604  D: Product: "USB Serial"
19:30:29.604  D: Name: "cu.usbserial-14340"
19:30:29.612  D: Port open succeeded
19:30:29.653  D: "starting"  busy:  false  state:  0
19:30:29.653  D: EV: 1001 took 20 uS
19:30:29.653  D: EV: 1001 took 5 uS
19:30:29.653  D: EV: 1001 took 8 uS
19:30:29.653  D: EV: 1001 took 4 uS
19:30:29.655  D: EV: 1001 took 6 uS
19:30:29.657  D: EV: 1018 took 8 uS
19:30:29.657  D: EV: 1015 took 2009 uS
19:30:29.753  D: "Tentative de connexion"  busy:  false  state:  1
19:30:29.753  D: "Connexion..."  busy:  false  state:  1
19:30:29.754  D: O: "G0\n"
19:30:30.010  D: "Connexion..."  busy:  false  state:  1
19:30:30.012  D: O: "G0\n"
19:30:30.268  D: "Connexion..."  busy:  false  state:  1
19:30:30.269  D: O: "G0\n"
19:30:30.525  D: "Connexion..."  busy:  false  state:  1
19:30:30.527  D: O: "G0\n"
19:30:30.782  D: "Connexion..."  busy:  false  state:  1
19:30:30.784  D: O: "G0\n"
19:30:31.040  D: "Connexion..."  busy:  false  state:  1
19:30:31.042  D: O: "G0\n"
19:30:31.157  D:   I: "\r\nGrbl 1.1f ['$' for help]\r\n"
19:30:31.297  D: "Connexion..."  busy:  false  state:  1
19:30:31.298  D: O: "G0\n"
19:30:31.548  D: "Connexion..."  busy:  false  state:  1
19:30:31.550  D: O: "G0\n"
19:30:31.805  D: "Connexion..."  busy:  false  state:  1
19:30:31.808  D: O: "G0\n"
19:30:32.062  D: "Connexion..."  busy:  false  state:  1
19:30:32.063  D: O: "G0\n"
19:30:32.320  D: "Connexion..."  busy:  false  state:  1
19:30:32.322  D: O: "G0\n"
19:30:32.576  D: "Connexion..."  busy:  false  state:  1
19:30:32.579  D: O: "G0\n"
19:30:32.834  D: "Connexion..."  busy:  false  state:  1
19:30:32.835  D: O: "G0\n"
19:30:33.090  D: "Connexion..."  busy:  false  state:  1
19:30:33.092  D: O: "G0\n"
19:30:33.347  D: "Connexion..."  busy:  false  state:  1
19:30:33.350  D: O: "G0\n"
19:30:33.604  D: "Connexion..."  busy:  false  state:  1
19:30:33.605  D: O: "G0\n"
19:30:33.861  D: "Connexion..."  busy:  false  state:  1
19:30:33.863  D: O: "G0\n"
19:30:34.119  D: "Connexion..."  busy:  false  state:  1
19:30:34.121  D: O: "G0\n"
19:30:34.377  D: "Connexion..."  busy:  false  state:  1
19:30:34.377  D: O: "G0\n"
19:30:34.634  D: "Connexion..."  busy:  false  state:  1
19:30:34.635  D: O: "G0\n"
19:30:34.892  D: "Connexion..."  busy:  false  state:  1
19:30:34.894  D: O: "G0\n"
19:30:35.148  D: "Connexion..."  busy:  false  state:  1
19:30:35.150  D: O: "G0\n"
19:30:35.406  D: "Connexion..."  busy:  false  state:  1
19:30:35.409  D: O: "G0\n"
19:30:35.664  D: "Connexion..."  busy:  false  state:  1
19:30:35.666  D: O: "G0\n"
19:30:35.920  D: "Connexion..."  busy:  false  state:  1
19:30:35.921  D: O: "G0\n"
19:30:36.178  D: "Connexion..."  busy:  false  state:  1
19:30:36.179  D: O: "G0\n"
19:30:36.434  D: "Connexion..."  busy:  false  state:  1
19:30:36.436  D: O: "G0\n"
19:30:36.691  D: "Connexion..."  busy:  false  state:  1
19:30:36.693  D: O: "G0\n"
19:30:36.947  D: "Connexion..."  busy:  false  state:  1
19:30:36.949  D: O: "G0\n"
19:30:37.204  D: "Connexion..."  busy:  false  state:  1
19:30:37.205  D: O: "G0\n"
19:30:37.461  D: "Connexion..."  busy:  false  state:  1
19:30:37.462  D: O: "G0\n"
19:30:37.717  D: "Connexion..."  busy:  false  state:  1
19:30:37.720  D: O: "G0\n"
19:30:37.975  D: "Connexion..."  busy:  false  state:  1
19:30:37.976  D: O: "G0\n"
19:30:38.231  D: "Connexion..."  busy:  false  state:  1
19:30:38.233  D: O: "G0\n"
19:30:38.489  D: "Connexion..."  busy:  false  state:  1
19:30:38.491  D: O: "G0\n"
19:30:38.745  D: "Connexion..."  busy:  false  state:  1
19:30:38.748  D: O: "G0\n"
19:30:39.003  D: "Connexion..."  busy:  false  state:  1
19:30:39.004  D: O: "G0\n"
19:30:39.260  D: "Connexion..."  busy:  false  state:  1
19:30:39.261  D: O: "G0\n"
19:30:39.517  D: "Connexion..."  busy:  false  state:  1
19:30:39.518  D: O: "G0\n"
19:30:39.774  D: "Connexion..."  busy:  false  state:  1
19:30:39.775  D: O: "G0\n"
19:30:40.031  D: "Connexion..."  busy:  false  state:  1
19:30:40.034  D: O: "G0\n"
19:30:40.288  D: "Connexion..."  busy:  false  state:  1
19:30:40.289  D: O: "G0\n"
19:30:40.545  D: "Connexion..."  busy:  false  state:  1
19:30:40.546  D: O: "G0\n"
19:30:40.801  D: "Connexion..."  busy:  false  state:  1
19:30:40.803  D: O: "G0\n"
19:30:41.060  D: "Connexion..."  busy:  false  state:  1
19:30:41.063  D: O: "G0\n"
19:30:41.316  D: "Connexion..."  busy:  false  state:  1
19:30:41.318  D: O: "G0\n"
19:30:41.573  D: "Connexion..."  busy:  false  state:  1
19:30:41.576  D: O: "G0\n"
19:30:41.829  D: "Connexion..."  busy:  false  state:  1
19:30:41.829  D: O: "G0\n"
19:30:42.086  D: "Connexion..."  busy:  false  state:  1
19:30:42.087  D: O: "G0\n"
19:30:42.343  D: "Connexion..."  busy:  false  state:  1
19:30:42.344  D: O: "G0\n"
19:30:42.600  D: "Connexion..."  busy:  false  state:  1
19:30:42.603  D: O: "G0\n"
19:30:42.857  D: "Connexion..."  busy:  false  state:  1
19:30:42.859  D: O: "G0\n"
19:30:43.114  D: "Connexion..."  busy:  false  state:  1
19:30:43.116  D: O: "G0\n"
19:30:43.371  D: "Connexion..."  busy:  false  state:  1
19:30:43.372  D: O: "G0\n"
19:30:43.628  D: "Connexion..."  busy:  false  state:  1
19:30:43.630  D: O: "G0\n"
19:30:43.884  D: "Connexion..."  busy:  false  state:  1
19:30:43.886  D: O: "G0\n"
19:30:44.142  D: "Connexion..."  busy:  false  state:  1
19:30:44.144  D: O: "G0\n"
19:30:44.400  D: "Connexion..."  busy:  false  state:  1
19:30:44.401  D: O: "G0\n"
19:30:44.657  D: "Connexion..."  busy:  false  state:  1
19:30:44.659  D: O: "G0\n"
19:30:44.914  D: "Connexion..."  busy:  false  state:  1
19:30:44.916  D: O: "G0\n"
19:30:45.172  D: "Connexion..."  busy:  false  state:  1
19:30:45.173  D: O: "G0\n"
19:30:45.429  D: "Connexion..."  busy:  false  state:  1
19:30:45.431  D: O: "G0\n"
19:30:45.685  D: "Connexion..."  busy:  false  state:  1
19:30:45.686  D: O: "G0\n"
19:30:45.942  D: "Connexion..."  busy:  false  state:  1
19:30:45.944  D: O: "G0\n"
19:30:46.200  D: "Connexion..."  busy:  false  state:  1
19:30:46.201  D: O: "G0\n"
19:30:46.457  D: "Connexion..."  busy:  false  state:  1
19:30:46.457  D: O: "G0\n"
19:30:46.713  D: "Connexion..."  busy:  false  state:  1
19:30:46.714  D: O: "G0\n"
19:30:46.970  D: "Connexion..."  busy:  false  state:  1
19:30:46.972  D: O: "G0\n"
19:30:47.227  D: "Connexion..."  busy:  false  state:  1
19:30:47.229  D: O: "G0\n"
19:30:47.484  D: "Connexion..."  busy:  false  state:  1
19:30:47.487  D: O: "G0\n"
19:30:47.491  D: Enumerating ports:
19:30:47.492  D: Port: "cu.usbserial-14340"
19:30:47.492  D:       Valid Candidate:  true
19:30:47.492  D:       PID: 29987 VID: 6790
19:30:47.492  D:       Manufacturer: "Generic"
19:30:47.492  D:       Description: "USB Serial"
19:30:47.492  D:       System Loc: "/dev/cu.usbserial-14340"
19:30:47.492  D:       Serial: ""
19:30:47.492  D: 
19:30:47.492  D: Port: "tty.usbserial-14340"
19:30:47.492  D:       Valid Candidate:  false
19:30:47.493  D:       PID: 29987 VID: 6790
19:30:47.493  D:       Manufacturer: "Generic"
19:30:47.493  D:       Description: "USB Serial"
19:30:47.493  D:       System Loc: "/dev/tty.usbserial-14340"
19:30:47.493  D:       Serial: ""
19:30:47.493  D: 
19:30:47.493  D: Port: "cu.wchusbserial14340"
19:30:47.493  D:       Valid Candidate:  true
19:30:47.493  D:       PID: 29987 VID: 6790
19:30:47.493  D:       Manufacturer: "Generic"
19:30:47.493  D:       Description: "USB Serial"
19:30:47.493  D:       System Loc: "/dev/cu.wchusbserial14340"
19:30:47.493  D:       Serial: ""
19:30:47.493  D: 
19:30:47.493  D: Port: "tty.wchusbserial14340"
19:30:47.493  D:       Valid Candidate:  false
19:30:47.493  D:       PID: 29987 VID: 6790
19:30:47.493  D:       Manufacturer: "Generic"
19:30:47.493  D:       Description: "USB Serial"
19:30:47.493  D:       System Loc: "/dev/tty.wchusbserial14340"
19:30:47.493  D:       Serial: ""
19:30:47.493  D: 
19:30:47.493  D: Port: "cu.Bluetooth-Incoming-Port"
19:30:47.493  D:       Valid Candidate:  true
19:30:47.493  D:       PID: 0 VID: 0
19:30:47.493  D:       Manufacturer: ""
19:30:47.493  D:       Description: "incoming port - Bluetooth-Incoming-Port"
19:30:47.493  D:       System Loc: "/dev/cu.Bluetooth-Incoming-Port"
19:30:47.493  D:       Serial: ""
19:30:47.493  D: 
19:30:47.493  D: Port: "tty.Bluetooth-Incoming-Port"
19:30:47.493  D:       Valid Candidate:  false
19:30:47.493  D:       PID: 0 VID: 0
19:30:47.493  D:       Manufacturer: ""
19:30:47.493  D:       Description: "incoming port - Bluetooth-Incoming-Port"
19:30:47.493  D:       System Loc: "/dev/tty.Bluetooth-Incoming-Port"
19:30:47.493  D:       Serial: ""
19:30:47.493  D: 
19:30:47.741  D: "Connexion..."  busy:  false  state:  1
19:30:47.741  D: O: "G0\n"
19:30:47.998  D: "Connexion..."  busy:  false  state:  1
19:30:48.000  D: O: "G0\n"
19:30:48.254  D: "Connexion..."  busy:  false  state:  1
19:30:48.255  D: O: "G0\n"
19:30:48.511  D: "Connexion..."  busy:  false  state:  1
19:30:48.513  D: O: "G0\n"
19:30:48.770  D: Entering serial port disconnect
19:30:48.770  D: Serial non null
19:30:48.782  D: Finishing serial port disconnect
19:30:48.782  D: Align output unchecked
19:30:48.784  D: EV: 1001 took 10 uS
19:30:48.784  D: Align output unchecked
19:30:48.786  D: EV: 1001 took 7 uS
19:30:48.786  D: EV: 1030 took 4 uS
19:30:48.786  D: EV: 1031 took 2 uS
19:30:48.786  D: Any ID allowed
19:30:48.786  D: Looking for port: "cu.wchusbserial14340"
19:30:48.787  D: -- candidate port PID 0 VID 0
19:30:48.787  D:     mfr:  ""
19:30:48.787  D:     prod: "incoming port - Bluetooth-Incoming-Port"
19:30:48.787  D:     name: "cu.Bluetooth-Incoming-Port"
19:30:48.787  D: -- candidate port PID 29987 VID 6790
19:30:48.787  D:     mfr:  "Generic"
19:30:48.787  D:     prod: "USB Serial"
19:30:48.787  D:     name: "cu.usbserial-14340"
19:30:48.787  D: -- candidate port PID 29987 VID 6790
19:30:48.787  D:     mfr:  "Generic"
19:30:48.787  D:     prod: "USB Serial"
19:30:48.787  D:     name: "cu.wchusbserial14340"
19:30:48.787  D:  - found matching port name
19:30:48.787  D: Found port: PID 29987 VID 6790
19:30:48.787  D: Manufacturer: "Generic"
19:30:48.787  D: Product: "USB Serial"
19:30:48.787  D: Name: "cu.wchusbserial14340"
19:30:48.797  D: Port open succeeded
19:30:48.837  D: "starting"  busy:  false  state:  0
19:30:48.838  D: EV: 1001 took 33 uS
19:30:48.838  D: EV: 1001 took 13 uS
19:30:48.838  D: EV: 1001 took 11 uS
19:30:48.838  D: EV: 1001 took 4 uS
19:30:48.840  D: EV: 1001 took 7 uS
19:30:48.841  D: EV: 1018 took 7 uS
19:30:48.841  D: EV: 1015 took 721 uS
19:30:48.938  D: "Tentative de connexion"  busy:  false  state:  1
19:30:48.938  D: "Connexion..."  busy:  false  state:  1
19:30:48.939  D: O: "G0\n"
19:30:49.194  D: "Connexion..."  busy:  false  state:  1
19:30:49.194  D: O: "G0\n"
19:30:49.451  D: "Connexion..."  busy:  false  state:  1
19:30:49.454  D: O: "G0\n"
19:30:49.707  D: "Connexion..."  busy:  false  state:  1
19:30:49.708  D: O: "G0\n"
19:30:49.964  D: "Connexion..."  busy:  false  state:  1
19:30:49.965  D: O: "G0\n"
19:30:50.220  D: "Connexion..."  busy:  false  state:  1
19:30:50.222  D: O: "G0\n"
19:30:50.346  D:   I: "\r\nGrbl 1.1f ['$' for help]\r\n"
19:30:50.480  D: "Connexion..."  busy:  false  state:  1
19:30:50.482  D: O: "G0\n"
19:30:50.732  D: "Connexion..."  busy:  false  state:  1
19:30:50.735  D: O: "G0\n"
19:30:50.989  D: "Connexion..."  busy:  false  state:  1
19:30:50.991  D: O: "G0\n"
19:30:51.245  D: "Connexion..."  busy:  false  state:  1
19:30:51.246  D: O: "G0\n"
19:30:51.503  D: "Connexion..."  busy:  false  state:  1
19:30:51.504  D: O: "G0\n"
19:30:51.759  D: "Connexion..."  busy:  false  state:  1
19:30:51.761  D: O: "G0\n"
19:30:52.016  D: "Connexion..."  busy:  false  state:  1
19:30:52.018  D: O: "G0\n"
19:30:52.272  D: "Connexion..."  busy:  false  state:  1
19:30:52.275  D: O: "G0\n"
19:30:52.530  D: "Connexion..."  busy:  false  state:  1
19:30:52.532  D: O: "G0\n"
19:30:52.786  D: "Connexion..."  busy:  false  state:  1
19:30:52.787  D: O: "G0\n"
19:30:53.043  D: "Connexion..."  busy:  false  state:  1
19:30:53.043  D: O: "G0\n"
19:30:53.299  D: "Connexion..."  busy:  false  state:  1
19:30:53.301  D: O: "G0\n"
19:30:53.558  D: "Connexion..."  busy:  false  state:  1
19:30:53.559  D: O: "G0\n"
19:30:53.814  D: "Connexion..."  busy:  false  state:  1
19:30:53.816  D: O: "G0\n"
19:30:54.072  D: "Connexion..."  busy:  false  state:  1
19:30:54.075  D: O: "G0\n"
19:30:54.329  D: "Connexion..."  busy:  false  state:  1
19:30:54.332  D: O: "G0\n"
19:30:54.586  D: "Connexion..."  busy:  false  state:  1
19:30:54.587  D: O: "G0\n"
19:30:54.842  D: "Connexion..."  busy:  false  state:  1
19:30:54.844  D: O: "G0\n"
19:30:55.100  D: "Connexion..."  busy:  false  state:  1
19:30:55.101  D: O: "G0\n"
19:30:55.356  D: "Connexion..."  busy:  false  state:  1
19:30:55.358  D: O: "G0\n"
19:30:55.613  D: "Connexion..."  busy:  false  state:  1
19:30:55.614  D: O: "G0\n"
19:30:55.871  D: "Connexion..."  busy:  false  state:  1
19:30:55.873  D: O: "G0\n"
19:30:56.129  D: "Connexion..."  busy:  false  state:  1
19:30:56.130  D: O: "G0\n"
19:30:56.387  D: "Connexion..."  busy:  false  state:  1
19:30:56.389  D: O: "G0\n"
19:30:56.644  D: "Connexion..."  busy:  false  state:  1
19:30:56.645  D: O: "G0\n"
19:30:56.900  D: "Connexion..."  busy:  false  state:  1
19:30:56.903  D: O: "G0\n"
19:30:57.157  D: "Connexion..."  busy:  false  state:  1
19:30:57.157  D: O: "G0\n"
19:30:57.414  D: "Connexion..."  busy:  false  state:  1
19:30:57.416  D: O: "G0\n"
19:30:57.672  D: "Connexion..."  busy:  false  state:  1
19:30:57.674  D: O: "G0\n"
19:30:57.929  D: "Connexion..."  busy:  false  state:  1
19:30:57.931  D: O: "G0\n"
19:30:58.187  D: "Connexion..."  busy:  false  state:  1
19:30:58.188  D: O: "G0\n"
19:30:58.443  D: "Connexion..."  busy:  false  state:  1
19:30:58.444  D: O: "G0\n"
19:30:58.700  D: "Connexion..."  busy:  false  state:  1
19:30:58.702  D: O: "G0\n"
19:30:58.957  D: "Connexion..."  busy:  false  state:  1
19:30:58.960  D: O: "G0\n"
19:30:59.215  D: "Connexion..."  busy:  false  state:  1
19:30:59.217  D: O: "G0\n"
19:30:59.472  D: "Connexion..."  busy:  false  state:  1
19:30:59.473  D: O: "G0\n"
19:30:59.729  D: "Connexion..."  busy:  false  state:  1
19:30:59.731  D: O: "G0\n"
19:30:59.986  D: "Connexion..."  busy:  false  state:  1
19:30:59.988  D: O: "G0\n"
19:31:00.244  D: "Connexion..."  busy:  false  state:  1
19:31:00.245  D: O: "G0\n"
19:31:00.501  D: "Connexion..."  busy:  false  state:  1
19:31:00.502  D: O: "G0\n"
19:31:00.758  D: "Connexion..."  busy:  false  state:  1
19:31:00.760  D: O: "G0\n"
19:31:01.015  D: "Connexion..."  busy:  false  state:  1
19:31:01.018  D: O: "G0\n"
19:31:01.273  D: "Connexion..."  busy:  false  state:  1
19:31:01.274  D: O: "G0\n"
19:31:01.530  D: "Connexion..."  busy:  false  state:  1
19:31:01.532  D: O: "G0\n"
19:31:01.788  D: "Connexion..."  busy:  false  state:  1
19:31:01.789  D: O: "G0\n"
19:31:02.044  D: "Connexion..."  busy:  false  state:  1
19:31:02.045  D: O: "G0\n"
19:31:02.300  D: "Connexion..."  busy:  false  state:  1
19:31:02.302  D: O: "G0\n"
19:31:02.558  D: "Connexion..."  busy:  false  state:  1
19:31:02.560  D: O: "G0\n"
19:31:02.817  D: "Connexion..."  busy:  false  state:  1
19:31:02.819  D: O: "G0\n"
19:31:03.074  D: "Connexion..."  busy:  false  state:  1
19:31:03.076  D: O: "G0\n"
19:31:03.331  D: "Connexion..."  busy:  false  state:  1
19:31:03.333  D: O: "G0\n"
19:31:03.588  D: "Connexion..."  busy:  false  state:  1
19:31:03.591  D: O: "G0\n"
19:31:03.845  D: "Connexion..."  busy:  false  state:  1
19:31:03.848  D: O: "G0\n"
19:31:04.101  D: "Connexion..."  busy:  false  state:  1
19:31:04.103  D: O: "G0\n"
19:31:04.358  D: "Connexion..."  busy:  false  state:  1
19:31:04.359  D: O: "G0\n"
19:31:04.616  D: "Connexion..."  busy:  false  state:  1
19:31:04.616  D: O: "G0\n"
19:31:04.872  D: "Connexion..."  busy:  false  state:  1
19:31:04.874  D: O: "G0\n"
19:31:05.129  D: "Connexion..."  busy:  false  state:  1
19:31:05.131  D: O: "G0\n"
19:31:05.385  D: "Connexion..."  busy:  false  state:  1
19:31:05.387  D: O: "G0\n"
19:31:05.643  D: "Connexion..."  busy:  false  state:  1
19:31:05.646  D: O: "G0\n"
19:31:05.901  D: "Connexion..."  busy:  false  state:  1
19:31:05.902  D: O: "G0\n"
19:31:06.158  D: "Connexion..."  busy:  false  state:  1
19:31:06.159  D: O: "G0\n"
19:31:06.415  D: "Connexion..."  busy:  false  state:  1
19:31:06.416  D: O: "G0\n"
19:31:06.671  D: "Connexion..."  busy:  false  state:  1
19:31:06.673  D: O: "G0\n"
19:31:06.929  D: "Connexion..."  busy:  false  state:  1
19:31:06.930  D: O: "G0\n"
19:31:07.037  D: Releasing Tool: Selection
19:31:07.037  D: Created Tool: Selection
19:31:07.038  D: EV: 1018 took 7 uS
19:31:07.038  D: EV: 1013 took 18 uS
19:31:07.040  D: EV: 1018 took 6 uS
19:31:07.040  D: EV: 1009 took 1554 uS
19:31:07.187  D: Entering serial port disconnect
19:31:07.187  D: Serial non null
19:31:07.197  D: Finishing serial port disconnect

HOOOOO. My GOD

after a month searching, i found the solution here just now USB connection problem with MacBook Pro (CNC3-3018 pro) - Accessibility - Inventables Community Forum

I just neeed to unplug the screen of the 3018, and baadabooooomm it works.
Two controler at the same time. …

Sorry for the askiing. Thank you for your help

2 Likes

No apologies required, friend. Thank you for your contribution - finding and providing a link to the solution you found. I am sure it will be helpful to others in the community. :slight_smile:

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