Hi Martin,

I think Gerry has mentioned the most likely cause of the problem - 3.3V TTL signals where 5V TTL is expected.

Tweakie.

Hi all,
       Just finished converting a Warco mill to CNC and after the usual tuning all works fine and produces a good result apart from the jog keys send the X & Y in the wrong direction!!
When I toggle the dir active in motor tuning the jog keys then work as they should but when I  machine a part with these settings it comes out a mirror image and upside down.
I am using  Mach 3 with a Windows 10 laptop for the first time with a genuine UC100 controller direct from CNC drive in Hungary.
Any ideas how to reverse the jog keys so they work correctly without changing anything else?
Many thanks
JH