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It could be your Keyboard.!! . . . .Try another. I've had this type of thing happen before and it's been the keyboard related.

If that doesn't work and your 100% sure your wiring is ok then...

You don't say what the voltage of the power supply is that feeds the drives?

I think we have the problem !

The earth return paths are not connected. The blue wire from the sensor should be connected to the 0v (gnd) terminals on both power supplies and also (of course) to...

Are you powering up the BoB from the USB input or a separate power supply? The reason I ask is that USB supplies a limited current and you might not have enough power to work the BoB and more than...

Make the switch point down, not sideways, and set the trigger pieces of metal just below it at each end of travel. It sounds as if this wouldn't give such accurate results but Jazz did some...

Hi

JAZZ and I are saying different things.

JAZZ says that the two ends of travel actually only need one switch, but with a trigger point at each end. in the Mach3 config screen the ++ and --...