Has anyone had any experience with polygon thread milling? This is on a Muratec MD200 31i control. I know just straight thread milling would be much easier but we currently polygon mill and for the sake of not buying new mill heads we would like to try this approach first. I am trying it in G12 instead of polygonal milling but running into an 021 alarm "illegal plane select" once it starts in the first G03 move. I have changed parameter #1022 to 6 to select G17 already. I feel as I'm missing something and cant put my finger on it. I will post the code as well...
Any suggestions??
O0001 ( 750NPT_HORN )
(DWG = 750NPT_HORN)
(P-N = )
(REV = )
N10 ( MAIN SPINDLE Z AXIS MILLING OD THREAD MILLING THREAD_MILL1 )
G0 G17 G40 G80 G99 M90
M68
G28 U0
G28 W0
G28 H0
T0101 ( HORN .0714 THREADMILL-ROTARY Z )
G97 S584 M33
G0 X4.2026 Z0.3 M8
G1 G12.1 ( POLAR INTERP ON )
X4.0631 C0.5369 F25.
Z0.1
G1 Z0.0833 F0.0714
G3 X3.4431 C0. Z0.0714 R0.62 F0.0357 <<<< THIS IS WHERE ALARM OCCURS
G2 X0. C-1.7228 Z0.0536 R1.7222 F0.0714
X-3.4481 C0. Z0.0357 R1.7234
X0. C1.7253 Z0.0178 R1.7247
X3.4531 C0. Z0. R1.7259
X0. C-1.7278 Z-0.0179 R1.7272
X-3.4581 C0. Z-0.0357 R1.7284
X0. C1.7303 Z-0.0536 R1.7297
X3.4631 C0. Z-0.0714 R1.7309
X0. C-1.7328 Z-0.0893 R1.7322
X-3.4681 C0. Z-0.1071 R1.7334
X0. C1.7353 Z-0.125 R1.7347
X3.4731 C0. Z-0.1428 R1.7359
X0. C-1.7378 Z-0.1607 R1.7372
X-3.4781 C0. Z-0.1785 R1.7384
X0. C1.7403 Z-0.1964 R1.7397
X3.4831 C0. Z-0.2142 R1.7409
X0. C-1.7428 Z-0.2321 R1.7422
X-3.488 C0. Z-0.2499 R1.7434
X0. C1.7453 Z-0.2678 R1.7446
X3.493 C0. Z-0.2856 R1.7459
X0. C-1.7478 Z-0.3034 R1.7471
X-3.498 C0. Z-0.3213 R1.7484
X0. C1.7503 Z-0.3391 R1.7496
X3.503 C0. Z-0.357 R1.7509
X0. C-1.7528 Z-0.3748 R1.7521
X-3.508 C0. Z-0.3927 R1.7534
X0. C1.7553 Z-0.4105 R1.7546
X3.513 C0. Z-0.4284 R1.7559
X0. C-1.7578 Z-0.4462 R1.7571
X-3.518 C0. Z-0.4641 R1.7584
X0. C1.7603 Z-0.4819 R1.7596
X3.523 C0. Z-0.4998 R1.7609
X0. C-1.7627 Z-0.5176 R1.7621
X-3.528 C0. Z-0.5355 R1.7634
X0. C1.7652 Z-0.5533 R1.7646
X3.533 C0. Z-0.5712 R1.7659
X0. C-1.7677 Z-0.589 R1.7671
X-3.538 C0. Z-0.6069 R1.7684
X0. C1.7702 Z-0.6247 R1.7696
X3.543 C0. Z-0.6426 R1.7709
X0. C-1.7727 Z-0.6604 R1.7721
X-2.6432 C-1.1825 Z-0.67 R1.7734
G3 X-3.8213 C-0.9891 Z-0.6819 R0.62
G1 Z0.3 F75.0
G13.1 (POLAR INTERP OFF )
( PROGRAM END )
M9
G28 U0
G28 W0
M69
M30
%
Any suggestions??
O0001 ( 750NPT_HORN )
(DWG = 750NPT_HORN)
(P-N = )
(REV = )
N10 ( MAIN SPINDLE Z AXIS MILLING OD THREAD MILLING THREAD_MILL1 )
G0 G17 G40 G80 G99 M90
M68
G28 U0
G28 W0
G28 H0
T0101 ( HORN .0714 THREADMILL-ROTARY Z )
G97 S584 M33
G0 X4.2026 Z0.3 M8
G1 G12.1 ( POLAR INTERP ON )
X4.0631 C0.5369 F25.
Z0.1
G1 Z0.0833 F0.0714
G3 X3.4431 C0. Z0.0714 R0.62 F0.0357 <<<< THIS IS WHERE ALARM OCCURS
G2 X0. C-1.7228 Z0.0536 R1.7222 F0.0714
X-3.4481 C0. Z0.0357 R1.7234
X0. C1.7253 Z0.0178 R1.7247
X3.4531 C0. Z0. R1.7259
X0. C-1.7278 Z-0.0179 R1.7272
X-3.4581 C0. Z-0.0357 R1.7284
X0. C1.7303 Z-0.0536 R1.7297
X3.4631 C0. Z-0.0714 R1.7309
X0. C-1.7328 Z-0.0893 R1.7322
X-3.4681 C0. Z-0.1071 R1.7334
X0. C1.7353 Z-0.125 R1.7347
X3.4731 C0. Z-0.1428 R1.7359
X0. C-1.7378 Z-0.1607 R1.7372
X-3.4781 C0. Z-0.1785 R1.7384
X0. C1.7403 Z-0.1964 R1.7397
X3.4831 C0. Z-0.2142 R1.7409
X0. C-1.7428 Z-0.2321 R1.7422
X-3.488 C0. Z-0.2499 R1.7434
X0. C1.7453 Z-0.2678 R1.7446
X3.493 C0. Z-0.2856 R1.7459
X0. C-1.7478 Z-0.3034 R1.7471
X-3.498 C0. Z-0.3213 R1.7484
X0. C1.7503 Z-0.3391 R1.7496
X3.503 C0. Z-0.357 R1.7509
X0. C-1.7528 Z-0.3748 R1.7521
X-3.508 C0. Z-0.3927 R1.7534
X0. C1.7553 Z-0.4105 R1.7546
X3.513 C0. Z-0.4284 R1.7559
X0. C-1.7578 Z-0.4462 R1.7571
X-3.518 C0. Z-0.4641 R1.7584
X0. C1.7603 Z-0.4819 R1.7596
X3.523 C0. Z-0.4998 R1.7609
X0. C-1.7627 Z-0.5176 R1.7621
X-3.528 C0. Z-0.5355 R1.7634
X0. C1.7652 Z-0.5533 R1.7646
X3.533 C0. Z-0.5712 R1.7659
X0. C-1.7677 Z-0.589 R1.7671
X-3.538 C0. Z-0.6069 R1.7684
X0. C1.7702 Z-0.6247 R1.7696
X3.543 C0. Z-0.6426 R1.7709
X0. C-1.7727 Z-0.6604 R1.7721
X-2.6432 C-1.1825 Z-0.67 R1.7734
G3 X-3.8213 C-0.9891 Z-0.6819 R0.62
G1 Z0.3 F75.0
G13.1 (POLAR INTERP OFF )
( PROGRAM END )
M9
G28 U0
G28 W0
M69
M30
%