cnc

Hi Everyone! I'm currently trying to assemble a CNC tool, right now I have a bit of an issue. My stepper motors won't move backwards when I use code (Mach3) when I run the jog mode in Mach3 the easily run CW and CCW, but when I load a code they move just one way and if the code orders em to go...

I work in a Machine shop and we have a very old CNC mill from 1983 with a Fanuc 3M control. It has a CRT display that has some messed up geometry and picture. I’ve worked with CRTs of this type and tried adjusting all the pots inside to see if the image would correct. It didn’t. Any ideas on...