Fiddly job today (for me).
7/16 square bar, needed to become to bits of 7/15 x 5/15, stepped down to 13/32 x 9/32 with a 1/4" spigot that needed to be milled to a x cross section with a round-nosed mill.
making one at each end of the bar using the DROs should have been straightforward, but I seemed to be cursed with slipping cutters..?
Eventually the penny dropped – it was a problem with the z-axis read head, one of the three screws holding it together had come lose and it was hopping back and forth between two readings 20-thou apart. Only three scrappers…
Now I have to drill and tap four 12BA holes and silver solder on two cylindrical bosses at 90 degrees to each other for each one. Plenty more room for cockups.
Neil