Mike I just posted in projects section of my upgraded x axis. I combined the 500mm makerslide onto the 1000mm slides. And used 1000mm for the y axis. Works good.
Progress report on my attempt to go bigger.
I originally purchase the 500mm Shapeoko2 set. Then ordered the 1000mm rails. But I really wanted to use full sheets of plywood with their 4ft widths. I noticed that if I could combine the old 500mm with the 1000mm then a I could fit the 4ft sheets and by sliding the sheet through I could theoretically cut on a full 4x8 sheet. I have heard that such a long axis may become prone to going off square but so far after a few projects the machine is hold…