Re: Barr pull and cutoff between spindles
i made it more difficult than it had to be
hy ripper, well it's ok as long as it works; if you can make the code simpler, is even better
is good to program at a more complex level, and be capable of reducing complexity to a minimal requirement
is good to start with simpler codes and develop ... just saying
so pulling to lets say up to W=20. stays the same, even if i start from W-10 or W-10.2 or W-9.5
try to code the pulling sequence, not in absolute G90, but in relative G91; of course, don't forget to restore the G90 after the pulling sequence
is good to know what is causing the variation, and also to target a tolerance for the shifting position
variation may be caused by :
... a faulty tool face, that does not cut the face always at same point : use a finish tool eg
... too much torque and/or too much feed, during the feed skip sequence; this sequence stops the machine, putting a brake on the servo when a target load is reached; if speed before breaking is too high, then breaking point will shift; as a result, your parts lenght will vary, but not because of machining/cutting, but because of cinematics; lower feed, lower torque if u wish, share your program, and i will take a look over it; try 100mm/min, 20-30% torque
there is a problem with pulling operations, regardless of being pulled by the 2nd spindle or the turret : if cinematics are not adjusted, if monitoring is not within responsable limit, you will put, only during the feed skip sequence, a wear inside the axis, that may be equivalent to hundreds/thousands of hours of normal machining
in other words, even if it works, this does not mean that there is not too much strees
some of most nasty crashes occur during spindle transfer & cutting / kindly
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