I have been working on this off and on for some time. One of the problems with too many projects and too little time. Anyway, I thought I would show some of the things I have done.
I will start not necessarily in the order that I did things. So, I am first going to start with the column setback (to increase Y travel). This modification will increase the Y travel from about 4" to about 5.5". It may ultimately require adding a 0.75" to 1.5" thick spacer between the spindle housing and the dovetail slide, in order to move the spindle out further from the column.
I got the idea for this column setback from the work by John Pitkin shown on the GrizHFMinimill group on Yahoo.
Alan