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Mastercam- how to spot drill

hình minh họa
hình minh họa

Hole making is one of the most common machining tasks and when programmed
poorly, a significant amount of a shop’s profit can be lost. Figure 1 represents a simple
aluminum block with various hole sizes on various levels. Typically, all of these holes
would be started with a spot drill and because there are a large range of hole diameters,
it is likely that more than one spot drill would be used.
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http://www.mediafire.com/download/j2rjvn88iatc2ey/mastercam+tutorial-how+to+spot+drill.pdf

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