I only just received my 6040 last wek Monday...The USB port "not recognised"..was solved by upgrading the driver...

My control box is also a "black" box with rotary emergency switch..but has a Power, VFD and water pump switch on front panel as well as the "Manual Control " display.

The machine now works using Mach3..however, I am having a problem with "erratic cutting"..i.e. if you cut a square shape the first using a "multipass cut"..the first pass cuts fine then the second and third cut start "moving/cutting" to the right handside of the first cut so you end up with 3 cuts in different places( asuming you selected a 3 pass cut)..

But Mach3 executes all the Gcode instructions...I think my problem is the Mach3 setup...so Ill be asking this question on the forum i.e. is there some kind of "standard" setup for the 6040.

Not sure if this helps you...

cheers