Hi Rich
For testing: I first leveled the bed in the X and Y direction, then mounted the wire using some blocks milled from mild steel at each end of the bed. They were adjustable to enable the wire to be positioned exactly.
By moving the wire (not the jig) that aligned the wire to the bed, end to end. The wire was set low, level with the centre of the V’s horizontally, making all 3 in line, to avoid parallax errors.
The head axis is aligned to the bed by the front and rear V ways which showed the original manufacturers scraping marks, it is not adjustable I do not have an Autocollimator so used a precision 18” inspection grade square and a dial indicator swung on a bar mounted in the chuck, the alignment to the bed was fine. Horizontally it appears fine using a test bar.
The saddle prepared to be set in Moglice
http://www.google.com.au/search?hl=en&q=Moglice&meta= by fitting inverted V blocks with cap screws to the 4 corners of the saddle. They were adjusted jacking up the saddle until it was perfectly aligned in all planes using the level and careful measurement to set the lead screw and control bars back on axis. Then all that remains is to very carefully remove the saddle and apply the Moglice to the saddle V’s and replace it over the bed. The next day the saddle was removed and the squashed out epoxy trimmed away. Am trying to find the CD to post some photos.
Cheers
John Mac