hi all well i have seen Meany different types of ball turner so i decided to mack one for me lathe the base plat is 12mm by 80 by 250 i marked off the center and drilled 10.1mm then countersunk to tack a m10 countersunk bolt i then had a rut for a Bering i will post the No of it its a double shielded Bering most of the ones that i have looked at just pivot on a center pin or on the base itself did not like that so mine is getting mounted on a Bering i made a retainer to hold the Bering to the plat then started work on the tool holder bit got a lump of rusty bar by it time i had cleaned it up it ended up being 48mm OD i drilled out the bottom 17mm deep then started to bore the base out it will have to be steeped 12mm deep for the Bering and 4.5 mm for the Bering retainer once this was dun i did sum simple dividing marked the out side with felt Pen went in 6mm from the bottom edge and put a line all the way round then with a Peace of plastic under one of the jaws of the chuck scribed a line a cores the center line then moved the plastic and turned the chuck to the next jaw and put the plastic back under and scribed a Cross the center linen so i ended up with 4 divisions equal spaced then thees where drilled and tap for m3 grub screws then sawed the top off right pics
krv3000, proud to be a member of MetalworkingFun Forum since Feb 2012.