NX Fixed Contour (Boundary Drive Method)
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ISO canned cycle G70, G71, G72 Deatils Use
G28 U0 W0 G50 S1500 N1 T0101 M8 (OD FACING) G96 S180 M3 G0 X255.0 Z5.0 G72 W2.0 R0.5 G72 P100 Q200 F0.25 N100 G0 Z0 G41 G1 X-2.0 F0.18 N200 G0 Z5.0 G40 X255.0 G28 U0 W0 N2 T0404 M8 (ID ROUGH) G96 S180 M3 G0 X50.0 Z5.0 G71 U2.0 R0.5 G71 P500 Q600 U-0.5 W0.1 F0.25 N500 G0 X202.0 G41 G1 Z0 F0.12 X200.0 Z-10.0 X100.0 Z-30.0 X60.0 Z-45.0 N600 X50.0 G40 G0 Z5.0 G28 U0 W0 N3 T0505 M8 (ID FINISH) G96 S220 M3 G0 X50.0 Z5.0 G70 P500 Q600 G0 X50.0 Z5.0 G28 U0 W0 M5 M9 M30
G76 malti purpose threading cycle
G76 Threading Cycle Tips for Thread Pass Control The below cnc program code is the typical format which a cnc machinist use while programming threading with G76 threading cycle. N5 G76 P 010060 Q100 R0.05 N6 G76 X30 Z-20 P1024 Q200 F2 Depth of First Pass With Q parameter in second-block of G76 threading cycle you can change the threading depth of First-pass of threading operation. In the above code Q200 value is given so while threading our tool will take 0.2(mm or inch) deep cut for the first pass. Depth of Each Pass For remaining passes depth of cut G76 use First-block Q parameter which is given above as Q100 (0.1 mm or inch). Depth of Last Pass or Finish Cut Last of Finish cut is also programmed with G76 as in above code First-block R parameter is given R0.05 (0.05 mm or inch) Number of Spring Passes Once the threading cycle has completed the Finish-cut (R parameter in first-block) you can program tool to take extra passes (spring pass) on the same depth for mult...
what is canned cycle for cnc machines
A canned cycle is a way of conveniently performing repetitive CNC machine operations. Canned cycles automate certain machining functions such as drilling, boring, threading, pocketing, etc...[1] Canned cycles are so called because they allow a concise way to program a machine to produce a feature of a part.[2] A canned cycle is also known as a fixed cycle. A canned cycle is usually permanently stored as a pre-program in the machine's controller and cannot be altered by the user. Programming format Edit The operation of a CNC machine tool is typically controlled by a "part program" written a language known as G-code. [3] Canned cycles are similar in concept to functions in a traditional computer language, and can be compared also to G-code macros. The format for a canned cycle consists of a series of parameters specified with a letter and a numerical value. The letter is referred to as an "address". (This use of the term "address" may be unfamil...
