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copying programs from cnc to usb


Jul 7, 2017
I am running a turning center with a Fanuc 18-T control, and I am loading programs with a Calmotion USBCNC box, which seems to work well for the most part. My control doesnt have a ton of memory, so I have to delete a program to load the next for larger programs. I'd like to keep my most recent program with current feeds and speeds without deleting, but I've tried the 'CNC to USB' function on the box but I am getting an error message as soon as I start to transfer the program on the Calmotion box saying 'serial overrun, cancelling'

I am assuming I am missing something in the process, does anyone have any experience with it?

Edit: I have attempted to reach out to Calmotion for help and have not heard back