Hi all, I'm about 90% done with my DIY CNC mill and I still have a few nagging questions. I'm running my stepper motors at "quarter step" and I have 5/16 threaded rod lead screws with one start, in mach3 I set the motor settings to 3600 for the number of steps per inch (200 steps x 18 thrds per inch). I'm not cutting yet but I did clamp a sharpie to the spindle mount and drew out the roadrunner sample file that comes with Mach3. It's a lot smaller then the wireframe shows. Is this due to the fact that I'm running at quarter step instead of full step? If I set my motors to full step would the drawn image be the right scale? Also, If I leave it on quarter step do I then change the motor setting to 14400 (3600x4)?

Dan D