Quote:
Originally Posted by compressor#v
Arn't CNC ported heads initially done by hand, then digitized to be copied by the CNC equipment?
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Many cnc porters do it that way as did Reggie Sr back in the day when he started but he has since switched to a probeing process so he can identify and adjust core shift on the fly because what he found was the core had shifted .030" to the left and the machine was taking out material on the right that the velocity would be down on that head so he uses the dowel locators, the seat, and the port window as reference points and the probe to adjust the machining.
On his billet heads he didn't hand port and digitize because there was no port there to begin with so he designed the whole port in Mastercam. I've watched him make and modify ports a couple of times and now he writes macros and probes them.
