G-code help.

[UnKnown12]

Hi,
I am new here, I don't really know how you guys here operate, but I am hoping you'll be able to help me
So this is my question:

N350 T1
N360 M03
N370 G00 X34 Z4
N380 G71 U2 R1
N390 G71 P400 Q470 U1 W1 F0.1
N400 G00 X12
N410 G01 X12 Z-10
N420 G01 X18 Z-18
N430 G03 X23 Z-20.5 R2.5
N440 G01 X24 Z-27.5
N450 G02 X29 Z-30 R2.5
N460 G01 X29 Z-50
N470 G01 X34
N480 G70 P400 Q470 F0.05
N490 G91 G28 X0 Z0
N500 G90
N510 M05


So, this is a cycle, so now what I can't really figure out is the finishing part, at the end of the stock removal part the tool goes to X34 (Z-50), now when it starts finish (according to this code) does it start finishing from X12 Z4 or not. In other words does the finishing follow the same path as stock removal?

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[Mike283]

Hi,
I am new here, I don't really know how you guys here operate, but I am hoping you'll be able to help me
So this is my question:

N350 T1
N360 M03
N370 G00 X34 Z4
N380 G71 U2 R1
N390 G71 P400 Q470 U1 W1 F0.1
N400 G00 X12
N410 G01 X12 Z-10
N420 G01 X18 Z-18
N430 G03 X23 Z-20.5 R2.5
N440 G01 X24 Z-27.5
N450 G02 X29 Z-30 R2.5
N460 G01 X29 Z-50
N470 G01 X34
N480 G70 P400 Q470 F0.05
N490 G91 G28 X0 Z0
N500 G90
N510 M05


So, this is a cycle, so now what I can't really figure out is the finishing part, at the end of the stock removal part the tool goes to X34 (Z-50), now when it starts finish (according to this code) does it start finishing from X12 Z4 or not. In other words does the finishing follow the same path as stock removal?

At the end of the G71 roughing cycle the X and Z should return to the last commanded position before the first G71 line.

[rcs60]

mike283 is right it will return to x34 z4
then the finishing pass will start by rapiding to x12 and start the finish cuts