Did my best to preload ballnut, but no success.

[alexccmeister]

Oh well, my excitement was short lived. As I feared, tightening the gib screws slowed the speed down to 2000 mm/min. I guess its still better than 500 previously. I definitely have to get the bigger power unit to get more torque at higher speed.

After the whole afternoon tweaking the mill, I did a small program to cut some circular pockets. DOC was 0.5mm and feedrate of 150 to 250mm/min. Not bad at all. No vibration or chatter although the cut surface is short of perfect.

I think I know why some people here advised against lapping the ways. I think I may have overdid the lapping of my Y axis ways and after tightening the gibs screws, I can still feel the table move ever so slightly and looking closely at the way interface, I can see the saddle sort of like floating and not really touching.

Alex