Yes, I decided to increase the travel. I went and re-measured the workshop and I came to the conclusion that I had to rip out a length of workbench and cupboards if I was going to reasonably fit the CNC in there. I figured I might as well use up all the space I'd created so upped the length to 1800mm (poor excuse I know). Since then I've thought up a couple of projects that would use the extra bit of length. I'd like to get a bearing spacing of at least 250mm on the gantry so I'm guessing a bit over 1600 for the workable length of X.