Rules For Bolt Pattern Canned Cycles

Classic Control - Mill Operator's Manual

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  1. Place the tool at the center of the bolt pattern (for G70 or G71), or at the starting hole location (for G72), before the canned cycle execution.
  2. The J code is the angular starting position and is always 0 to 360 degrees counterclockwise from the three o’clock position.
  3. For G70 and G71 cycles, put an L0 on the initial canned cycle line to skip drilling at the center of the hole pattern. You can also turn off Setting 28 to prevent a hole from being drilled at the initial X/Y position. Refer to page 5 for more information on Setting 28.
note: L0 is the preferred method.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.