Greetings,
I built, many years ago now, a 4 axis machine for cutting foam. The x axis 1/2 x 10 acme rod is not straight, and thus has a wobble. I made my own floating nuts so to say, but I have long wondered what the pros or well, those in the know, do about this anomaly?
Is the wobble normal? I don't know if I am describing this properly or not. Imagine 36 inches of acme rod supported on each end, and well there is a sag so to speak. However, it has been there from day one as far as I can remember.
I'd like to get some delrin nuts or the like, and get away from the floating syndrome I have had all these years. I am going to be doing a rebuild and this is one item that has bothered me because it does induce some backlash error.
Thanks in advance.
th