Hello,
My machine has been operating pretty good for a while but the lead screws may not always be perfectly aligned. Not sure how much this contributes to wear, using Dumpster CNC's 1/2-10 5 start thread. The nuts seem to be wearing out about every 6 months. The machine gets decent use, like 10-20 hours a week probably. At this time the deflection on the oldest replaced ACME nut is .005" side to side, for a total error of 0.010" which is unacceptable in the work that I do. The other one which was replaced probably 4 months ago is at +/-0.002 about.
Does anyone know if these nuts are wearing out prematurely, I can't easily tell, but it does seem logical. If so I should probably spend the $$$ on ball screw and nut combination from McMaster? This is available in 5 start from what I can tell.
What kind of options may be available for other drive system? Since the screws will have a tendency to whip no matter what.
Attachment 384706