I grooved all of my old non-ATC tools in the Tormach's spindle using this tool.
T10012 Parting Tool with Carbide Insert
The critical dimension is the distance from the flat that contacts the spindle face to the top of the groove. And even that can vary by about 0.005" since the ATC has some movement built into it. The chamfer angles aren't as critical.
Here's my code, which is written for the Vertical Lathe configuration. You can use the code, or just pick the feeds and speeds out of it. The usual disclaimers apply.
Code:
%
(Add ATC Groove)
(DATE: 05/21/12 TIME: 19:19)
(PROGRAMMED BY: FREDERIC SCOTT)
(MACHINE: TORMACH 1100 VERTICAL LATHE)
(MATERIAL TYPE: 1018 STEEL)
(BLANK SIZE: FINISHED TTS TOOL)
(ORIGIN: 1.815" FROM SPINDLE FACE.)
(NOTES: )
(******START TOOLING LIST******)
( T0404 @GLANZ CUTOFF )
(*******END TOOLING LIST*******)
N00020 G90 G94 G40 G18 G80
N00030 G20( Inch)
N00040 (Postprocessor Rev14, 9April09: MyMachTurn14)
N00050 (*************Lathe Grooving*************)
N00060 (Workpiece diameter: 1.5 in)
N00070 (Workpiece length: 3.185 in)
N00080 (Tool Zmin, Zmax: -1.518 in, 0.541 in)
N00090 (Tool Xmin, Xmax: 1.153 in, 1.9 in)
N00100 M6 T0404 (MSG, Waiting on tool T4)
N00110 (*************@Custom l0.35, Ti0.07795, Re0.00498,
Ia0.09374, Ph0 *************)
N00120 (Tool Zmin, Zmax: -1.518 in, 0.541 in)
N00130 (Tool Xmin, Xmax: 1.153 in, 1.9 in)
N00140 G48 S220 G41 D01 (max rpm for CSS mode)
N00150 G96 S864 M3 (CSS mode with surface speed)
N00160 G0 X1.7 Z0.54057
N00170 Z-1.51751
N00180 X1.90004
N00190 X1.70004
N00200 G95 M8 (feed/rev)
N00210 G1 X1.50004 F0.004
N00220 X1.49666
N00230 X1.4867 Z-1.51253
N00240 X1.48596 Z-1.51223
N00250 X1.48516 Z-1.51196
N00260 X1.4843 Z-1.51173
N00270 X1.4834 Z-1.51155
N00280 X1.48248 Z-1.51141
N00290 X1.48152 Z-1.51131
N00300 X1.48056 Z-1.51126
N00310 X1.153
N00320 G0 X1.70004
N00330 Z-1.47448
N00340 G1 X1.50004
N00350 X1.4945
N00360 X1.36944 Z-1.51058
N00370 X1.3688 Z-1.51076
N00380 X1.36796 Z-1.51094
N00390 X1.36734 Z-1.51104
N00400 X1.36672 Z-1.51112
N00410 X1.3661 Z-1.51119
N00420 X1.36546 Z-1.51123
N00430 X1.36482 Z-1.51125
N00440 X1.153
N00450 G0 X1.90004
N00460 M5 M9
N00470 M30 G40 G80 G90 G94 G97 S1000
%