I just installed a PC, Mach 3, and Hillbilly's BOB on my Boss 6 with steppers. All axis' were working with the new stuff. While calibrating the Z-axis using Mach 3, the Z-axis stopped moving except for .001-.002 oscilations shown on an indicator. The DRO shows what appears to be correct movement. My initial settings for motor tuning were 1000 steps per inch, velocity 30, and acceleration 1, all per Hillbilly's start up notes. Have I missed something in Mach or could it be machine related? Thanks for any help.