A shirline 5400 mill (inches) its about 10 years old. I added a kit from keling to cnc it and have set it up so there are 32000 turns per inch
200 steps X 8( for 1/8 step) X 20(.05 inches per turn) = 32000
its seems to work correctly.
I have used Rhinocam to generate the Gcode and used mach3 sherline as the post processor.
When I ran the code the y axis cut fine but the x axis shrunk by about half. I looked at the settings and all three axis are set the same, I checked the drivers and they are set the same as well. Any ideas?
Next question, When I am setting up the mill and zeroing out the piece how do I determine the edge of the stock? Is it spindle over the stock until it reaches the end or is it moved to the stock and set when the spindle comes in contact with the edge?