[mattford1]

Hi Guys-

Has anyone had luck with Fusion 360 and the Rapid Turn (using the post for the slant lathe)? I've been having an issue where the tool path wants to start below the part and cut up in X going up. I've tried flipping the tool orientation in Fusion but no luck. Thanks for any help!


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(************************************************* ********)
(* Tormach PathPilot Lathe Post Processsor r20160408 *)
(************************************************* ********)
; program: 1
;
; CAM: Fusion 360 CAM 2.0.2267
; Document: Bushing v8
; Post Processor: Tormach 15LSlantPRO-1.1.20
;
; ***LOCKED*** : Fri Jul 29 2016 21:30:27 GMT-0700 (PDT)
;
;
;
; **** PUT LATHE INTO QCTP MODE ***
;
; Tool / Op list .................................................. ............................
; -- tool: 1 Z : -2.0166 CT: 00:00:43
; op: Face1
; op: Profile1
; -- tool: 6 Z : -1.7575 CT: 00:00:04
; op: Groove1
; op: Part1
;
; Approximate tool change time: ................ : 00:00:49
; Approximate part load time: .................. : 00:01:05
; total cycle time ( with approx tool change time ): 00:02:40 (0.045 hrs. )
;
G7
G18
G20
G54
G40
G90

G30
M0

; ================================================== ============
; Tool: 1
; Time: 00:00:43
; Z: -2.0166
; Op: Face1
T0101
G97 S500 M3
G0 X-2.3468
Z0.4687 M8
G0 Z-2.0166
G95 G1 X-1.6599 F0.03937
X-1.5468 Z-1.96
X-0.0313
X-0.1444 Z-2.0166
G0 X-2.3468
Z-1.9766
G1 X-1.6599 F0.03937
X-1.5468 Z-1.92
X-0.0313
X-0.1444 Z-1.9766
G0 X-2.3468
Z-1.9366
G1 X-1.6599 F0.03937
X-1.5468 Z-1.88
X-0.0313
X-0.1444 Z-1.9366
G0 X-2.3468
Z-1.8966
G1 X-1.6599 F0.03937
X-1.5468 Z-1.84
X-0.0313
X-0.1444 Z-1.8966
G0 X-2.3468
Z-1.8566
G1 X-1.6599 F0.03937
X-1.5468 Z-1.8
X-0.0313
X-0.1444 Z-1.8566
G0 X-2.3468
Z-1.8166
G1 X-1.6599 F0.03937
X-1.5468 Z-1.76
X-0.0313
X-0.1444 Z-1.8166
G0 X-2.3468
Z-1.7766
G1 X-1.6599 F0.03937
X-1.5468 Z-1.72
X-0.0313
X-0.1444 Z-1.7766
G0 X-2.3468
Z-1.7366
G1 X-1.6599 F0.03937
X-1.5468 Z-1.68
X-0.0313
X-0.1444 Z-1.7366
G0 X-2.3468
Z-1.6966
G1 X-1.6599 F0.03937
X-1.5468 Z-1.64
X-0.0313
X-0.1444 Z-1.6966
G0 X-2.3468
Z-1.6566
G1 X-1.6599 F0.03937
X-1.5468 Z-1.6
X-0.0313
X-0.1444 Z-1.6566
G0 X-2.3468
Z0.4687

; .. .. .. .. .. .. .. .. .. .. .. .. ..
; Op: Profile1
; Time: 00:00:04
; Z: -1.6315
G96 S656 D1600 M3
G0 X-1.803 Z0.1969
Z-0.0438
X-1.0765
G95 G1 X-1.0361 F0.04
X-0.923 Z-0.1004
Z-1.6315
X-1.0022
X-1.1153 Z-1.5749
G0 Z-0.0438
X-0.9561
G1 X-0.843 Z-0.1004 F0.04
Z-1.6315
X-0.923
X-1.0361 Z-1.5749
G0 Z-0.0438
X-0.8761
G1 X-0.763 Z-0.1004 F0.04
Z-0.1684
X-0.7881 Z-0.1809
G2 X-0.83 Z-0.2315 I0.0506 K-0.0506
G1 Z-0.6315
G2 X-0.8295 Z-0.6377 I0.0715 K0.
G1 X-0.763 Z-1.0175
Z-1.6315
X-0.843
X-0.9561 Z-1.5749
G0 Z-0.0438
X-0.7961
G1 X-0.683 Z-0.1004 F0.04
Z-0.1284
X-0.7881 Z-0.1809
G2 X-0.803 Z-0.1897 I0.0506 K-0.0506
G1 X-0.9161 Z-0.1331
G0 Z-0.0438
X-0.7402
G1 X-0.627 Z-0.1004 F0.04
X-0.723 Z-0.1484
X-0.8361 Z-0.0918
G0 Z-0.0438
X-0.7402
G1 X-0.627 Z-0.1004 F0.04
X-0.643 Z-0.1084
X-0.7561 Z-0.0518
G0 X-0.8761
Z-0.961
G1 X-0.763 Z-1.0175 F0.04
X-0.7093 Z-1.3245
Z-1.6315
X-0.763
X-0.8761 Z-1.5749
G0 Z-1.2679
G1 X-0.8224 F0.04
X-0.7093 Z-1.3245
X-0.6556 Z-1.6315
X-0.7093
X-0.8224 Z-1.5749
G0 X-0.8379
Z-0.0438
X-0.6246
G1 X-0.6096 F0.04
X-0.4965 Z-0.1004
G2 X-0.5316 Z-0.1092 I0.0047 K-0.0311
G1 X-0.7316 Z-0.2092
G2 X-0.75 Z-0.2315 I0.0223 K-0.0223
G1 Z-0.6315
G2 X-0.7498 Z-0.6342 I0.0315 K0.
G1 X-0.5753 Z-1.6315
X-0.6884 Z-1.5749
X-0.7458
G0 X-1.803
Z0.1969
M9
M5

G30
M0

; ================================================== ============
; Tool: 6
; Time: 00:00:04
; Z: -1.7575
; Op: Groove1
T0606
G96 S656 D1600 M3
G0 X-1.803
Z0.1969 M8
G0 Z-0.8231
X-0.8939
G95 G1 X-0.8933 F0.04
X-0.7333
X-0.58
X-0.8854
G0 X-0.8864
Z-0.8622
G1 X-0.7264 F0.04
X-0.58
X-0.7247
X-0.7264
X-0.8642
G0 X-0.8796
Z-0.9014
G1 X-0.7196 F0.04
X-0.58
X-0.665
X-0.7196
X-0.8437
G0 X-0.8727
Z-0.9405
G1 X-0.7127 F0.04
X-0.58
X-0.66 Z-0.9005
X-0.7645
G0 X-0.8659
Z-0.9797
G1 X-0.7059 F0.04
X-0.58
X-0.66 Z-0.9397
X-0.74
G0 X-0.859
Z-1.0188
G1 X-0.699 F0.04
X-0.58
X-0.66 Z-0.9788
X-0.74
G0 X-0.8522
Z-1.058
G1 X-0.6922 F0.04
X-0.58
X-0.6922
X-0.8162
G0 X-0.8453
Z-1.0971
G1 X-0.6853 F0.04
X-0.58
X-0.6853
X-0.8095
G0 X-0.8384
Z-1.1363
G1 X-0.6784 F0.04
X-0.58
X-0.6784
X-0.8026
G0 X-0.8316
Z-1.1754
G1 X-0.6716 F0.04
X-0.58
X-0.6716
X-0.7957
G0 X-0.8247
Z-1.2146
G1 X-0.6647 F0.04
X-0.58
X-0.6647
X-0.7888
G0 X-0.8179
Z-1.2537
G1 X-0.6579 F0.04
X-0.58
X-0.6579
X-0.782
G0 X-0.811
Z-1.2929
G1 X-0.651 F0.04
X-0.58
X-0.651
X-0.7752
G0 X-0.8042
Z-1.332
G1 X-0.6442 F0.04
X-0.58
X-0.6442
X-0.7683
G0 X-0.7973
Z-1.3712
G1 X-0.6373 F0.04
X-0.58
X-0.6373
X-0.7615
G0 X-0.7905
Z-1.4103
G1 X-0.6305 F0.04
X-0.58
X-0.6305
X-0.7546
G0 X-0.7836
Z-1.4495
G1 X-0.6236 F0.04
X-0.58
X-0.6236
X-0.7477
G0 X-0.7768
Z-1.4886
G1 X-0.6168 F0.04
X-0.58
X-0.6168
X-0.7409
G0 X-0.7699
Z-1.5278
G1 X-0.6099 F0.04
X-0.58
X-0.6099
X-0.74
G0 X-0.7631
Z-1.5669
G1 X-0.6031 F0.04
X-0.58
X-0.6031
X-0.7537
G0 X-0.8941
Z-0.7657
G1 X-0.8893 F0.04
X-0.7386 Z-0.7927
G2 X-0.687 Z-0.7975 I0.0258 K0.0667
G1 X-0.58
Z-1.5669
X-0.6931 Z-1.5104
X-0.74
G0 X-0.9047
Z-0.7575
G1 X-0.7447 F0.04
X-0.5
Z-1.6
X-0.6131 Z-1.5434
X-0.66
G0 X-1.803
Z0.1969

; .. .. .. .. .. .. .. .. .. .. .. .. ..
; Op: Part1
; Time: 00:00:01
; Z: -1.7575
G96 S656 D1600 M3
G0 X-1.803 Z0.1969
Z-1.7575
G95 G1 X0.063 F0.04
X-1.803
G0 Z0.1969
M9
M5

G30

M30

[tmarks11]

I think I understand what is going on.

On the rapid turn, the X=0 position is centerline of your workpiece, and than the X axis is positive as your tool goes above that. You should never see your RT g-code giving you a negative x value.

e.g. If you have a 2" diameter workpiece, when turning the surface of the workpiece, X should start at +1 when just touching the surface, then make a pass at +.95 (to make a 0.10" cut).

Looking at your g-code, all of the X values are negative, which tells me you need to go back to Fusion360 and see how you defined your coordinate system. You have your X axis flipped (it appears your X=0 is in the centerpiece, since your parting tool movement starts at -1.8 and moves to +0.063" to part).

On the SPL15 lathe, the QCTP is set on the -X side of the workpiece, so when you define your tool as being in the QCTP, you want negative value. But if you had gang tools or turret mounted tools, it should use the same +X coordinates as the Rapid Turn.

[mattford1]

I think I understand what is going on.

On the rapid turn, the X=0 position is centerline of your workpiece, and than the X axis is positive as your tool goes above that. You should never see your RT g-code giving you a negative x value.

e.g. If you have a 2" diameter workpiece, when turning the surface of the workpiece, X should start at +1 when just touching the surface, then make a pass at +.95 (to make a 0.10" cut).

Looking at your g-code, all of the X values are negative, which tells me you need to go back to Fusion360 and see how you defined your coordinate system. You have your X axis flipped (it appears your X=0 is in the centerpiece, since your parting tool movement starts at -1.8 and moves to +0.063" to part).

On the SPL15 lathe, the QCTP is set on the -X side of the workpiece, so when you define your tool as being in the QCTP, you want negative value. But if you had gang tools or turret mounted tools, it should use the same +X coordinates as the Rapid Turn.

AHHH that makes perfect sense. I don't know how I missed that. I'll give that a test and report back. Thanks!!!


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