Hi Gentlemen,
I've had a 1995 Milltronics Partner I with Centurion V controller for several years, but today was the first day that I tried to get the mill to tap a 4-40 hole using the G84 command. Basically, the mill center drilled and drilled the hole, but once it got to the tap holder, it simply dwelled over the hole about an inch above it and then began to barely feed towards it, maybe by a 1/10,000 every second while the spindle zipped along way too fast.
I spoke with a tech at Milltronics some months ago to find out if my mill was equipped with rigid tap--he seemd to think it was. So I am wondering if there is something wrong with my G code as BobCAD-CAM processes it. Here's a short sample program:
(Accucraft Coupler Pocket Fix)
(MACH_FILE=3AXVMILL.MCH)
(MTOOL T4 S1 D0.1875 H0.825 DIAM_OFFSET 4 = 0.09375)
(MTOOL T5 S1 D0.089 H5. DIAM_OFFSET 5 = 0.0445)
(MTOOL T6 S1 D0.112 H5. DIAM_OFFSET 6 = 0.056)
(SBOX X-0.185 Y-0.555 Z-0.12 L2.23178 W0.125 H0.38)
(END PREDATOR NC HEADER)
%
O100 (PROGRAM NUMBER)
(PROGRAM NAME - SR 36' TRUSSROD BOXCAR DRAFT BOX (ACCUCRAFT).NC)
(POST - CENTURION 5)
(DATE - SAT. 05/11/2013)
(TIME - 05:45PM)
N01 G00 G17 G20 G32 G40 G50 G69 G80 G90
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N02 T4 M06
N03 S1996 M03
N04 X0.25981 Y-0.21573
N05 G43 H4 Z0.88
N06 G81 X0.25981 Y-0.21573 Z0.111 R0.736 F7.9858 G98
N07 G80
N08 M05
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N09 T5 M06
N10 S7038 M03
N11 G00 X0.25981 Y-0.21573
N12 G43 H5 Z0.88
( *** MANUALLY EDIT V & D VALUES *** )
N13 G83 X0.25981 Y-0.21573 Z-0.21604 R0.736 V0.1 Q0.0445 D0.1 F7.0386 G98
N14 G80
N15 M05
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N16 T6 M06
N17 S3342 M03
N18 G00 X0.25981 Y-0.21573
N19 G43 H6 Z0.88
N20 G84 X0.25981 Y-0.21573 Z-0.14337 R0.736 B0. P0. F0.025 G98
N21 G80
N22 M05
(END OF PROGRAM)
N23 M02
%
Any ideas what may be wrong?
Thanks!
Dave Queener
Knoxville, Tennessee
(865) 280-2882
I've had a 1995 Milltronics Partner I with Centurion V controller for several years, but today was the first day that I tried to get the mill to tap a 4-40 hole using the G84 command. Basically, the mill center drilled and drilled the hole, but once it got to the tap holder, it simply dwelled over the hole about an inch above it and then began to barely feed towards it, maybe by a 1/10,000 every second while the spindle zipped along way too fast.
I spoke with a tech at Milltronics some months ago to find out if my mill was equipped with rigid tap--he seemd to think it was. So I am wondering if there is something wrong with my G code as BobCAD-CAM processes it. Here's a short sample program:
(Accucraft Coupler Pocket Fix)
(MACH_FILE=3AXVMILL.MCH)
(MTOOL T4 S1 D0.1875 H0.825 DIAM_OFFSET 4 = 0.09375)
(MTOOL T5 S1 D0.089 H5. DIAM_OFFSET 5 = 0.0445)
(MTOOL T6 S1 D0.112 H5. DIAM_OFFSET 6 = 0.056)
(SBOX X-0.185 Y-0.555 Z-0.12 L2.23178 W0.125 H0.38)
(END PREDATOR NC HEADER)
%
O100 (PROGRAM NUMBER)
(PROGRAM NAME - SR 36' TRUSSROD BOXCAR DRAFT BOX (ACCUCRAFT).NC)
(POST - CENTURION 5)
(DATE - SAT. 05/11/2013)
(TIME - 05:45PM)
N01 G00 G17 G20 G32 G40 G50 G69 G80 G90
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N02 T4 M06
N03 S1996 M03
N04 X0.25981 Y-0.21573
N05 G43 H4 Z0.88
N06 G81 X0.25981 Y-0.21573 Z0.111 R0.736 F7.9858 G98
N07 G80
N08 M05
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N09 T5 M06
N10 S7038 M03
N11 G00 X0.25981 Y-0.21573
N12 G43 H5 Z0.88
( *** MANUALLY EDIT V & D VALUES *** )
N13 G83 X0.25981 Y-0.21573 Z-0.21604 R0.736 V0.1 Q0.0445 D0.1 F7.0386 G98
N14 G80
N15 M05
(JOB 4 TAP RANDOM POINT PATTERN)
(FEATURE DRILL TAP)
N16 T6 M06
N17 S3342 M03
N18 G00 X0.25981 Y-0.21573
N19 G43 H6 Z0.88
N20 G84 X0.25981 Y-0.21573 Z-0.14337 R0.736 B0. P0. F0.025 G98
N21 G80
N22 M05
(END OF PROGRAM)
N23 M02
%
Any ideas what may be wrong?
Thanks!
Dave Queener
Knoxville, Tennessee
(865) 280-2882