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or misuse of techniques shown in this web page. We simply publish information
we feel will be of interest to CNC users. In all cases, the reader is totally
responsible for considering the implications, good and bad, of implementing one
or more of the techniques we show.
A Circle Milling Custom Macro
by Steven Andrews of H & L Tooling
GREETINGS FROM SOUTH AFRICA! I HAVE RECENTLY STARTED PROGRAMMING IN MACRO B
AND HAVE WRITTEN THIS PROGRAM TO CUT PILLAR HOLES, ETC IN MOULD PLATES. THIS
PROGRAM CUTS A HOLE OF ANY DIAMETER AT ANY POSITION WITH ANY DEPTH OF CUT USING
ANY DIAMETER CUTTER. THERE IS NO NEED FOR RADIUS COMPENSATION AS YOU CAN CHANGE
THE CUTTER DIAMETER OR THE HOLE DIAMETER TO GET THE SIZE YOU REQUIRE. YOU CAN
SET THE DEPTH OF CUT TO MORE THAN THE TOTAL DEPTH OF THE HOLE TO JUST TAKE ONE
CUT. THE 180 DEG. LEAD-IN AND LEAD-OUT WITH A RADIUS PLACES LESS STRAIN ON THE
CUTTER AS IT COMES INTO CONTACT WITH THE MATERIAL TO BE CUT. HERE IS THE
PROGRAM :
