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SmoothStepper USB / Re: smooth stepper works differently in different computers?
« on: April 14, 2010, 01:36:38 PM »
Not quite the same thing Barry, as the laptop uses an adapter.
If you have a multimeter, with your laptop switched off and disconnected from the mains, measure the continuity between the mains earth pin and the metal part on the outside of your USB connection or the metal part on the outside of your LPT port - Is it an open circuit ?.
Tweakie.
If you have a multimeter, with your laptop switched off and disconnected from the mains, measure the continuity between the mains earth pin and the metal part on the outside of your USB connection or the metal part on the outside of your LPT port - Is it an open circuit ?.
Tweakie.