Managed to get around to start simple mill engine from the mag, no casting so easy to try again. Well everyone tells you measure twice cut once, nobody tells you to read the drawings three times.. Last week or so I have mucked about shaping HSS tools shapeing them grinding and generals muck about to find out what works best. Today big start day got the square bar set it up in four jaw chuck, faced it off then , parted 50mm to make the bit, to my surprise no issue there, cut like a dream, all my mucking about has paid off. On a high set up the parted part back in four jaw got it running true, drilled through the middle, carried on making holes required. Very pleased with my efforts, reward cup of coffee, then on to next bit, then noticed my error, hole should be off set, delema will it be ok looking at other things in drawings, eventually dicided bin it. Start again, problem off set in chuck, solution made a support for DTI got it so the unit ran true then marked two opposite jaws out with calculator to determine position. Whole afternoon in shop, one little bit, but it my little bit, I know looking on this board this is nothing great but I am chuffed to bits, roll on next session, I might even manage the next bit
Jim