Yes, I have to recalibrate all the axis again for the new adjustment... The slides are very free moving..It seems that i have installed the linear rails
I am planning to make the new spindle with AISI 4140...Today I have hardened 03 different cylindrical pieces( dia: 1inch, length 1.5") of AISI 4140..
Each piece was heated to 850C and then one piece was Oil Quenched, One was Normal water Quench whereas the last one was quenched in the chilled water...
I have observed the longitudinal crack in the normal water quenched workpiece...
Tomorrow i will check it for Rockwell hardness.. For a good spindle the hardness must be in the range of 50~57HRC..