Following mill CNC upgrade using Sherline's kit and Sure Step motors I have
difficulties setting up the machine.
The X and Y movement is stiff and smooth, however, backlash seem to be huge and uneven so jogging CW shows different backlash value than CCW.
I have taken the mill apart, cleaned, greased and tighten all screws, made sure everything it stiff but moves without too much force. The only problem I had was removing the axis nut for visual inspection so I can't tell what its condition.
Sherline support suggested not touching the gibs but apart from that game me no specific information on what to do in such case.
Should I make an effort to remove the stacked axis nut?
Where else to look?
Btw, I am using Abro #2 lithium grease and was wondering if that can cause any problem. Is there such a thing as too much grease?
Thanks for your help.