Re: Z axis creeping down / loosing steps on a Taig Micromill 2000 with Mach 3
Continuing on the mechanical theme. How often do you use the machine and when was it last stripped and cleaned? With the standard Taig spindle there is a lot of weight on the brass nut so it does ware more than the X and Y and while backlash may be less of a problem with the weight holding things down, it can mask other problems if the vertical slide is sticking.
Lester Caine - G8HFL
http://medw.co.uk - Home of electronics for the Model Engineer