Geeetech

Ok, I have the printer wired up like this:

[Printer]<--USB Cable-->[Drok USB Meter]<->[USB Hub]<--USB Cable-->[Computer]

The USB Hub is a Sabrent USB 2.0 hub, with power switches,powered by a 2.5A power adapter.

I'll startup the printer's power supply and wait until the LCD displays. I will then ...

I have tried multiple USB Ports on two different computers. USB cables of various lengths, and even put a powered USB hub in the middle, as well.
Seems to be the same behavior each time.

Strange... not sure if I have a problem, or just a finicky board.

Can the GT2560 control board be powered with just a USB cable? (For programming and configuration, not operating the printer motors/etc)

I am finding that if I power off the printer power supply, the GT2560 will, most times, stay on via the power supplied by the USB cable.
I have experimented and ...