Sorry I've not got back for a while. Second vaccination laid me low!

I have made a gear which drives the carriage satisfactorily. I cast my mind back to the days when I was a design draughtsman and searched out some information which said that theoretically the perfect pinion for running on a rack could have round pins. I made a cutter as close as I could to the unworn part,and cut the little gear. This part is actually a compound, with the other bigger gear running on the clutch gear.I turned down the worn gear to 8mm and pressed on the new gear. I then drilled half-and-half holes and tapped M3 and put in grub screws. It winds by hand and with the power feed smoothly. The pitch circle is a little small when checked on the hand wheel, but this is of no consequence as it has DRO fitted. Incidentally this machine is a Feeler Mk.2 and when it was at British Aerospace we found that parts from a Hardinge HLV-H were all interchangeable I seem to recall though that the Feeler used metric screws. One slight difference I came upon is that it has useful jacking screws to get the apron off easily.