On 30.03.17 12:02, andy pugh wrote: > My particular setup puzzle is analagous to this, except that I will be > using the horizontal spindle. > > Machining this casting: https://goo.gl/photos/6QhNnqjzRuSJJpva7 > > The order of operations will be, starting with the raw casting: > 1) with the large flat face clamped down to the table machine the base flat. > 2) Now clamp the base to the table, face off the large flat face and > machine the large bore.
Perhaps clamp the base with spacers, so that a milling cutter can pass under to pre-machine a D-shaped key-slot with X locked on the bore position. The key-slot edges can then be clocked if it needs to be re-machined for a flat bottom. If there's enough meat, a smaller slot drill might be able to make a round-cornered key-slot deep enough, but probably not long enough. > 3) Return to the original setup and machine a key-slot in the base > _exactly_ on the axis of the large bore. > > 3) is the problem. I can indicate the base to make sure that is > perpendicular to the spindle axis, but how do I make sure that the > bore axis and the spindle axis intersect? Yes, that's the step which should only be done with the key-slot alignment pre-machined. Erik ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
