PIPEFATHER
LET ME SEE IF I HAVE THE PERCENTAGE THING RITE HERE. IF WE USE 1 INCH BORE DIA AND WE MADE THE PORT 1 INCH WIDE THEN WE MEASURE THE PORT ON THE CIRCUMFERANCE OF THE BORE WE HAVE 157% PORT???? SOOOO WITH THE HELP OF MY DAUGHTERS MATH CLASSES SHE SAYS THAT THE ARCH LINE OF 110% OF THE BORE DIA. WOULD GIVE ME A PORT WIDTH OF .890. I DO HAVE A BRIDGEPORT AND WORKED AS A TOOL MAKER FOR YEARS BUT ITS NOT A SIMPLE JOB TO MAKE AN OVAL ON IT. SINCE I DONT HAVE A BRIDGED PORT I CAN ONLY GO TO THE 75% WHICH WOULD BE A PORT WIDTH OF .683. TELL ME I HAVE THIS ALL CORRECT?????
FARMER TED