My vague recollection is that there were two articles - one on refurbishing a D2 and one on alignment. I have a copy of the alignment article that is noted as an "extra" to the March/April 2004 issue, which stimulates an even less certain recollection that the alignment thing might have been supplementary information on the PhotoTechniques web site. I do recall that the refurbishment article went into pretty detailed information about rebuilding the mechanism, including where to purchase suitable parts.