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Thread: G71 programming

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  1. 12-21-2009, 12:03 AM #1
    alphonse
    alphonse is offline Registered
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    G71 programming

    Hello. I need some help with G71 programming on a fanuc OI control. I understand there are two types of G71 and I would like some explanations about how to use both types .Thanks.
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  2. 12-21-2009, 02:05 AM #2
    dcoupar
    dcoupar is offline Gold Member
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    A G71 Type I finish profile must have monotonous increases in X-axis. G71 Type II allows up to 4 valleys (in X) within the finish profile. In both cases Z must be monotonous.

    G71 Type I is designated by a single axis move in the P block:

    G71 P101 Q101
    G00 X1.5

    G71 Type II is designated by a 2 axis move in the P block.

    G71 P101 Q102
    G00 X1.5 Z0.1
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