I'd forgotten how difficult it is to hand drill cast iron. Either nice chips or powder or nothing. Four oversize holes for the helicoil insert tap. Then the 6x1mm inserts.
For the aluminium casting got a chance again to use the G33.1 with a 6mm tap and my spring loaded collet holder. That worked nicely. Although in the future putting the tap 2.25" above the work at 100RPM takes forever to reach the hole. Draw bar assembly temporarily in place while I create a new draw bar that doesn't use two 9/16" nuts jammed against each other. http://www.autoartisans.com/mill/TopPlateMounted-1.jpg Baby steps. John _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
