What lubrication did everyone use on their linear rods?
I use sewing machine oil.
Very very light oil. The bronze bushings are pre-impregnated with oil. So you need little to no oil on them. For the lead screws/nut I use superlube. Its available on Amazon: http://www.amazon.com/gp/aw/d/B000XBH9HI/ref=mp_s_a_1_1?qid=1435532354&sr=8-1&pi=AC_SY200_QL40&keywords=Superlube&dpPl=1&dpID=31-xhQ8JfAL&ref=plSrch
Just don’t use superlube on the bronze bushings rods, or the linear ball bearings… Just the lead screw.