On Dec 15, 3:49*pm, "Bob La Londe" wrote:
I just received an email from HSM where one guy improved the accuracy,
runout, deflection of his inexpensive drill press by bolting a snug fitting
washer to the top of his quill that rides inside the column against the
sides.

My first thought was, "Won't that introduce wear to the inside of the
column?" *My second was, "Gee that does sound like it work work if you used
a softer sacrificial material fro your washer/spacer."

Not that I am convinced I want to do this to my drill presses, but I you
were to take this approach with the thought that you might want to use these
everyday. *Not just once in a while what would you make that washer out of?



My first thought was teflon, but I think a better choice would be
UHMW. MSC sells it.

Dan