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Erschienen in:
1994 | OriginalPaper | Buchkapitel
Canned cycles/macros
verfasst von : Bernard Hodges
Erschienen in: CNC Part Programming Workbook
Verlag: Macmillan Education UK
Enthalten in: Professional Book Archive
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All CNC machine tools have, as part of the programming facility within the controller, the feature of executing machine canned cycles and/or sub-programs or macro routines. These are built into the controller’s computer software and make it easy to program routine machining sequences. Such routines are drilling, tapping, spot-facing and area clearance for square pockets, circular pockets and boring cycles. The difference between the two is that a canned cycle is inherent within the control system and usually cannot be changed or re-programmed, whereas a macro is a separate program generated by the programmer and inserted within the main program or, in the case of some controls, stored apart from the main program text.