can you use more than one usb-ss on the same machine with one computer

[skyguynca]

I have a couple of the USB-SS for back ups, but my mill is now getting a ATC and 4th axis, I really don't want to buy a new ESS-SS so is it possible to use 2 of the USB-SS on one computer running Mach3 to run all the axis and ATC on my one mill? or can the expansion port be used ?

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[Torchhead]

Probably not. the plugin for MACH could not talk to two different cards at the same time

[CS900]

Sorry to hijack, but i was wondering the same thing, but I'd like to run them at different times? I have 3 machines, and they all use USBSS. Currently I just plug in whatever machine I'm using, but is there a way I can keep them all connected and just assign a "port" to each one?