Quote Originally Posted by irving2008 View Post
one way: a cnc lathe would turn outer diameter, drill inner hole, then bore the recess and part off in 2 steps to do the reverse side boss, then face off for the next part. maybe do 10 off in one run out of 120mm-ish long rod.
Thats exactly how i thought one would go about it,,cant really give too much away but once ive gotten this far with em ive got to run a couple of tool paths on them,using the centre 8mm hole i will bolt these blanks down one at a time and finish..the outer diameter doesnt have to be spot on to size as long as its 38.5mm or greater as it will be machine down with a profile path.

swarfing I wish i could get away with that but there working parts of a 4 or 5 part assembley,they'll get done one way or another thanks.