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hi, i dont uderstand how to program using pattern repeat on a LTC system 10T on fanuc controls. is there a simple way to understand it. thanks
G73 is similar to G71 and G72 in that you define the finish shape in the subsequent blocks (ns to nf). While G71 roughs in a Z (turning) direction, G72 roughs in an X (facing direction), and G73 roughs by following the finish shape.
The manual says that it is used to rough premachined stock, or castings or forgings. I'm willing to bet that 95% of the programmers out there have never used it. IMHO, it's not an effective way to rough a casting.
95% of what I machine is castings I have never used G73. I use G71 and G70 all the time.Originally Posted by dcoupar
No matter how good you are, there is always someone better!!!
so how would you machine this angled groove with a turning tool, because in g70 and g71 it would rough it then on the final cut try to take out the angle groove in one big cut..
sorry for the poor drawinng
Me personally I would use a groove tool to rough it out then make a finish pass with a turn tool. Not real sure that I would use a canned cycle at all.
No matter how good you are, there is always someone better!!!
I just might use a G71 "Type II" if I had the option. Or, I might give the old G73 a try, again, if I had the Type II option.
Use a G72 to rough it with a groove tool and then finnish it with the same tool using G1.so how would you machine this angled groove with a turning tool, because in g70 and g71 it would rough it then on the final cut try to take out the angle groove in one big cut..
sorry for the poor drawinng
G72W.03P0(P is zero so you don't hit the wall)
G72P1Q2U0W0F.005 (U and W are zero because you are finishing with G1)
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