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« on: October 11, 2017, 03:31:13 AM »
Hi John,
are you making any progress.
I'm not sure but I think the question mark alongside the driver icon is to do with User Account Control in Windows 7.
You may already have noted that you have to run Mach as Administrator to get the required privilege. I encountered the
same thing some years ago when I set up my little Atom board PC with Windows7 and parallel port. I can't remember just
how I worked around that but there is a way in Windows7 for a particular program, Mach for instance, to always be run at
Administrator privilege when you open it. I will try to find the process, I did post it on the forum when I did it but it would be
about four years ago now.
The important point is that question mark or not I don't think is the issue with your machine.
May I suggest disconnect all motors but one, the X say. Its so easy to get confused when you've got multiple axes...when if you can figure
one out, and that would be a step up, then the others are usually easy.
Now you need to get busy with your scope. First can you see the DIR pin of the BoB change state as you jog backwards and forwards?
Is that signal being applied to the right pin of the driver? Is there a hardwired setting or jumper on the driver board that sets Step/Dir
or CW/CCW ? With the motor output shaft disconnected from the screw issue a long slow movement to the driver and probe the Step signal.
eg G1 X 5000 F5, should take hour to complete and you can probe without time pressure.
Craig