Would love to see this in Mastercam Lathe

[SlaveCam]

I'd love to be able to machine threads with custom profiles with a cutoff/groove/whatever tool using controlled threading (G32 on Fanuc). I don't know of any cam that can do it.

[DODGERFAN]

Are you talking about ACME threads?

[acam]

I would also love to see it as a Mastercam feature.

It's not that hard to make it work anyways.

We have been forced to do  it in a postprocessor.

 

And it works great on any kind of thread profile with rough and finish passes.

 

The User simply creates rough or finish toolpath on a custom profile:

 

 

Here are the settings the user can set up:

 

 

Here is the resulting toolpath (It is Sinumerik code):

;%_N_T_MPF
;$PATH=/_N_MPF_DIR
N1 G18 G54
N2 SETMS(4)
N3 T3 ; DESNI ZUNANJI VNMG R0.8
N4 TC(1)
N5 LIMS=3600
N6 G96 S550 M3
N7 G0 X61.159 Z0.498
N8 G95 G1 F0.5
N9 X60.359
N10 X59.559
N11 X58.759
N12 X57.959
;1
N13 G0 Z0.498
N14 G0 X57.159
N15 G33 Z-200 K40 SF=90
N16 G0 X77.159
;2
N17 G0 Z0.203
N18 G0 X56.655
N19 G33 Z-200 K40 SF=90
N20 G0 X76.655
;3
N21 G0 Z-0.093
N22 G0 X56.15
N23 G33 Z-200 K40 SF=90
N24 G0 X76.15
;4
N25 G0 Z-0.388
N26 G0 X55.646
N27 G33 Z-200 K40 SF=90
N28 G0 X75.646
;5
N29 G0 Z-0.683
N30 G0 X55.142
N31 G33 Z-200 K40 SF=90
N32 G0 X75.142
...

Of course the verify and backplot do not really show the right result but at least we can do the code  .