Anybody use their Electrocraft driven Hurco enough to have a workable estimate on servo motor brush life and/or a safe replacement interval in hours, revolutions, or screw travel?
I have the manual for the Hurco, and it does cover some maintenance items like refilling the oil reservoir and greasing the spindle spline, but I do not see anything on brush life. The fact is brushes wear out, and I would like to replace them periodically before they cause part problems, crashes, or rotor damage.
I really plan to use my machine when I finish retrofitting it. I expect it will be running a lot. I have easily put over ten thousand hours on my Taig since I bought it, and I expect to use this mill about equally or more since I plan to retire the Taig eventually. Atleast long enough to redesign it better for high speed spindle work and better life of precision.