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Showing results for tags '3/4-14 npt'.
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Gentlemen, while I have good knowledge op taps I'm running into an issue with over loading when tap is trying to reverse out of hole. We started out with standard 59/64 drill and a tapping depth of .920.... Spindle overloaded. Moved to 59/64 drill and a tapered 1.0 EM with 1.5 Deg. Draft to reduce some of the load.... Spindle overloaded. So next is to increase RPM to decrease spindle load but what is the safest RPM to Increase this to and generate more power.. If it all fails I'll thread mill. Below is code I'm using. ( 3/4-14 NPT TAP | TOOL - 4 | DIA. OFF. - 4 | LEN. - 4 | TOOL DIA. - 1.05 ) ( TAPS HOLE ON B0. SIDE ) T4 M01 M6 M01 G0 G90 X1.5 Y10.25 S238 M3 G43 H4 Z12. M8 G94 G98 G84.2 Z7.0853 R8.5407 F17. G80 G94 M9 M5 G91 G30 Z0. Y0. G30 X0. Y0. G30 X0. M30 Kindest regards, Jean
