Download CNC Programming Basics: A Primer for Skills VICA by Steve Krar, Arthur Gill PDF

By Steve Krar, Arthur Gill

Covers the elemental CNC ideas. offers specific reasons of every step within the programming and turning a component. offers fabric in an easy-to-understand and logical demeanour. Explains the training of a application in a step by step technique. makes use of sensible examples to steer the scholar.

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Using the part illustrated in Fig. 27 the programming for a Fanuc compatible control would be as follows: Fig. 27 A typical round part used for CNC programming and machining. (Kelmar Associates) 39 Turning Programming Programming Sequence % (rewind stop code/parity check) 2001 (program number) N05 G20 G90 G40 G20 inch data input. G90 absolute positioning mode G40 cancels tool radius compensation. N10 G95 G96 S2000 M03 G95 feed rate per revolution. G96 constant feed rate. S2000 spindle speed set at 2000 r/min.

125 F10 G01 linear interpolation. 125 below the work surface. /min. 625 top groove cut to the right hand end. 375 measurement did not change because it was set in block N30. 625 right hand side of the groove cut. 375 bottom groove cut to the left side. left-hand side of groove cut; this completes the groove. 100 G00 rapid traverse mode. 100 above work surface. 750 tool rapids to the top left hole location. /min. to drill the first hole. 100 above work surface. 125 tool rapids to second hole location.

Kelmar Associates) Cutter Diameter Compensation Cutter diameter compensation (CDC) changes a milling cutter’s programmed centerline path to compensate for small differences in cutter diameter. On most MCUs, it is effective for most cuts made using either linear or circular interpolation in the X-Y axis, but does not affect the programmed Z-axis moves. 0001 in. , and usually most controls have as many CDCs available as there are tool pockets in the tool storage matrix. The advantage of the CDC feature is that it: 1.

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