Have already posted this problem but have advanced a little bit from last post,The problem was the x axis on my bridgeport series 1 with retro ahha control only jogs slowly,it will not rapid,I took wiring from the y axis and put on x and it works fine, I switched over the driver cards and the problem still their,I Then checked voltage on y axis on rapid movement(64vdc)I then checked voltage on x axis(10vdc) has anyone got any ideas . not very electrical minded