Ok, I give up. 7 start thread

Incoming pics! :)

Alloy , I know I have the whole complete book down the basement also and I always found the G76 cycle to be the fastest to work with . I developed the heart pump impellars for Johns Hopkins way back when using G76 . I'm gettin OLD ! :grin:

I also found a ton of other stuff in the short amount of time I spent , time to clean it out !
 
Thanks for your help.

I know once I get G76 figured out I think it will be my go to program for threading. Sure saves a lot of memory over G32 or G92.
 
OK, I think this will work. Be very careful :cautious: air cuts are your friend. I haven't had time to try this, cutting parts in my lathe right now.

Pitch 0.115
OD 1.870
Depth .110
Width of gear .610
Lead 1.2422
7 Start
Posted from Fusion 360 with a Fanuc Turn post
12 passes per groove, reducing step down per pass, no cleanup pass

Note: For a left hand thread the spindle needs to turn clockwise.
Note: This one uses G92, I'll post another that uses G32

%
O1007 (TEST)
N10 G98 G18
N15 G20
N20 G50 S100
N25 G28 U0.

(THREAD1)
N30 T0100
N35 G54
N40 M8
N45 G99
N50 G97 S30 M4 (Spindle Clockwise)
N55 G0 X2.8 Z0.23
N60 G92 X1.8065 Z-0.755 F1.2422
N65 X1.7802
N70 X1.76
N75 X1.743
N80 X1.728
N85 X1.7144
N90 X1.702
N95 X1.6904
N100 X1.6795
N105 X1.6692
N110 X1.6594
N115 X1.65
N120 G0 X2.8 Z0.4075
N125 G92 X1.8065 Z-0.755 F1.2422
N130 X1.7802
N135 X1.76
N140 X1.743
N145 X1.728
N150 X1.7144
N155 X1.702
N160 X1.6904
N165 X1.6795
N170 X1.6692
N175 X1.6594
N180 X1.65
N185 G0 X2.8 Z0.5849
N190 G92 X1.8065 Z-0.755 F1.2422
N195 X1.7802
N200 X1.76
N205 X1.743
N210 X1.728
N215 X1.7144
N220 X1.702
N225 X1.6904
N230 X1.6795
N235 X1.6692
N240 X1.6594
N245 X1.65
N250 G0 X2.8 Z0.7624
N255 G92 X1.8065 Z-0.755 F1.2422
N260 X1.7802
N265 X1.76
N270 X1.743
N275 X1.728
N280 X1.7144
N285 X1.702
N290 X1.6904
N295 X1.6795
N300 X1.6692
N305 X1.6594
N310 X1.65
N315 G0 X2.8 Z0.9398
N320 G92 X1.8065 Z-0.755 F1.2422
N325 X1.7802
N330 X1.76
N335 X1.743
N340 X1.728
N345 X1.7144
N350 X1.702
N355 X1.6904
N360 X1.6795
N365 X1.6692
N370 X1.6594
N375 X1.65
N380 G0 X2.8 Z1.1173
N385 G92 X1.8065 Z-0.755 F1.2422
N390 X1.7802
N395 X1.76
N400 X1.743
N405 X1.728
N410 X1.7144
N415 X1.702
N420 X1.6904
N425 X1.6795
N430 X1.6692
N435 X1.6594
N440 X1.65
N445 G0 X2.8 Z1.2947
N450 G92 X1.8065 Z-0.755 F1.2422
N455 X1.7802
N460 X1.76
N465 X1.743
N470 X1.728
N475 X1.7144
N480 X1.702
N485 X1.6904
N490 X1.6795
N495 X1.6692
N500 X1.6594
N505 X1.65

N510 M9
N515 G28 U0.
N520 G28 W0.
N525 M30
%
 
Last edited:
Same as above except using G32. I know this would run on my machine, but will it actually make the part? :dunno:

%
O1008 (TEST)
N10 G98 G18
N15 G20
N20 G50 S100
N25 G28 U0.

(THREAD1)
N30 T0100
N35 G54
N40 M8
N45 G99
N50 G97 S30 M4 (Spindle Clockwise)
N55 G0 X2.8 Z0.23
N60 G0 X1.8065
N65 G32 Z-0.755 F1.2422
N70 G0 X2.8
N75 Z0.23
N80 X1.7802
N85 G32 Z-0.755 F1.2422
N90 G0 X2.8
N95 Z0.23
N100 X1.76
N105 G32 Z-0.755 F1.2422
N110 G0 X2.8
N115 Z0.23
N120 X1.743
N125 G32 Z-0.755 F1.2422
N130 G0 X2.8
N135 Z0.23
N140 X1.728
N145 G32 Z-0.755 F1.2422
N150 G0 X2.8
N155 Z0.23
N160 X1.7144
N165 G32 Z-0.755 F1.2422
N170 G0 X2.8
N175 Z0.23
N180 X1.702
N185 G32 Z-0.755 F1.2422
N190 G0 X2.8
N195 Z0.23
N200 X1.6904
N205 G32 Z-0.755 F1.2422
N210 G0 X2.8
N215 Z0.23
N220 X1.6795
N225 G32 Z-0.755 F1.2422
N230 G0 X2.8
N235 Z0.23
N240 X1.6692
N245 G32 Z-0.755 F1.2422
N250 G0 X2.8
N255 Z0.23
N260 X1.6594
N265 G32 Z-0.755 F1.2422
N270 G0 X2.8
N275 Z0.23
N280 X1.65
N285 G32 Z-0.755 F1.2422
N290 G0 X2.8
N295 Z0.4075
N300 X1.8065
N305 G32 Z-0.755 F1.2422
N310 G0 X2.8
N315 Z0.4075
N320 X1.7802
N325 G32 Z-0.755 F1.2422
N330 G0 X2.8
N335 Z0.4075
N340 X1.76
N345 G32 Z-0.755 F1.2422
N350 G0 X2.8
N355 Z0.4075
N360 X1.743
N365 G32 Z-0.755 F1.2422
N370 G0 X2.8
N375 Z0.4075
N380 X1.728
N385 G32 Z-0.755 F1.2422
N390 G0 X2.8
N395 Z0.4075
N400 X1.7144
N405 G32 Z-0.755 F1.2422
N410 G0 X2.8
N415 Z0.4075
N420 X1.702
N425 G32 Z-0.755 F1.2422
N430 G0 X2.8
N435 Z0.4075
N440 X1.6904
N445 G32 Z-0.755 F1.2422
N450 G0 X2.8
N455 Z0.4075
N460 X1.6795
N465 G32 Z-0.755 F1.2422
N470 G0 X2.8
N475 Z0.4075
N480 X1.6692
N485 G32 Z-0.755 F1.2422
N490 G0 X2.8
N495 Z0.4075
N500 X1.6594
N505 G32 Z-0.755 F1.2422
N510 G0 X2.8
N515 Z0.4075
N520 X1.65
N525 G32 Z-0.755 F1.2422
N530 G0 X2.8
N535 Z0.5849
N540 X1.8065
N545 G32 Z-0.755 F1.2422
N550 G0 X2.8
N555 Z0.5849
N560 X1.7802
N565 G32 Z-0.755 F1.2422
N570 G0 X2.8
N575 Z0.5849
N580 X1.76
N585 G32 Z-0.755 F1.2422
N590 G0 X2.8
N595 Z0.5849
N600 X1.743
N605 G32 Z-0.755 F1.2422
N610 G0 X2.8
N615 Z0.5849
N620 X1.728
N625 G32 Z-0.755 F1.2422
N630 G0 X2.8
N635 Z0.5849
N640 X1.7144
N645 G32 Z-0.755 F1.2422
N650 G0 X2.8
N655 Z0.5849
N660 X1.702
N665 G32 Z-0.755 F1.2422
N670 G0 X2.8
N675 Z0.5849
N680 X1.6904
N685 G32 Z-0.755 F1.2422
N690 G0 X2.8
N695 Z0.5849
N700 X1.6795
N705 G32 Z-0.755 F1.2422
N710 G0 X2.8
N715 Z0.5849
N720 X1.6692
N725 G32 Z-0.755 F1.2422
N730 G0 X2.8
N735 Z0.5849
N740 X1.6594
N745 G32 Z-0.755 F1.2422
N750 G0 X2.8
N755 Z0.5849
N760 X1.65
N765 G32 Z-0.755 F1.2422
N770 G0 X2.8
N775 Z0.7624
N780 X1.8065
N785 G32 Z-0.755 F1.2422
N790 G0 X2.8
N795 Z0.7624
N800 X1.7802
N805 G32 Z-0.755 F1.2422
N810 G0 X2.8
N815 Z0.7624
N820 X1.76
N825 G32 Z-0.755 F1.2422
N830 G0 X2.8
N835 Z0.7624
N840 X1.743
N845 G32 Z-0.755 F1.2422
N850 G0 X2.8
N855 Z0.7624
N860 X1.728
N865 G32 Z-0.755 F1.2422
N870 G0 X2.8
N875 Z0.7624
N880 X1.7144
N885 G32 Z-0.755 F1.2422
N890 G0 X2.8
N895 Z0.7624
N900 X1.702
N905 G32 Z-0.755 F1.2422
N910 G0 X2.8
N915 Z0.7624
N920 X1.6904
N925 G32 Z-0.755 F1.2422
N930 G0 X2.8
N935 Z0.7624
N940 X1.6795
N945 G32 Z-0.755 F1.2422
N950 G0 X2.8
N955 Z0.7624
N960 X1.6692
N965 G32 Z-0.755 F1.2422
N970 G0 X2.8
N975 Z0.7624
N980 X1.6594
N985 G32 Z-0.755 F1.2422
N990 G0 X2.8
N995 Z0.7624
N1000 X1.65
N1005 G32 Z-0.755 F1.2422
N1010 G0 X2.8
N1015 Z0.9398
N1020 X1.8065
N1025 G32 Z-0.755 F1.2422
N1030 G0 X2.8
N1035 Z0.9398
N1040 X1.7802
N1045 G32 Z-0.755 F1.2422
N1050 G0 X2.8
N1055 Z0.9398
N1060 X1.76
N1065 G32 Z-0.755 F1.2422
N1070 G0 X2.8
N1075 Z0.9398
N1080 X1.743
N1085 G32 Z-0.755 F1.2422
N1090 G0 X2.8
N1095 Z0.9398
N1100 X1.728
N1105 G32 Z-0.755 F1.2422
N1110 G0 X2.8
N1115 Z0.9398
N1120 X1.7144
N1125 G32 Z-0.755 F1.2422
N1130 G0 X2.8
N1135 Z0.9398
N1140 X1.702
N1145 G32 Z-0.755 F1.2422
N1150 G0 X2.8
N1155 Z0.9398
N1160 X1.6904
N1165 G32 Z-0.755 F1.2422
N1170 G0 X2.8
N1175 Z0.9398
N1180 X1.6795
N1185 G32 Z-0.755 F1.2422
N1190 G0 X2.8
N1195 Z0.9398
N1200 X1.6692
N1205 G32 Z-0.755 F1.2422
N1210 G0 X2.8
N1215 Z0.9398
N1220 X1.6594
N1225 G32 Z-0.755 F1.2422
N1230 G0 X2.8
N1235 Z0.9398
N1240 X1.65
N1245 G32 Z-0.755 F1.2422
N1250 G0 X2.8
N1255 Z1.1173
N1260 X1.8065
N1265 G32 Z-0.755 F1.2422
N1270 G0 X2.8
N1275 Z1.1173
N1280 X1.7802
N1285 G32 Z-0.755 F1.2422
N1290 G0 X2.8
N1295 Z1.1173
N1300 X1.76
N1305 G32 Z-0.755 F1.2422
N1310 G0 X2.8
N1315 Z1.1173
N1320 X1.743
N1325 G32 Z-0.755 F1.2422
N1330 G0 X2.8
N1335 Z1.1173
N1340 X1.728
N1345 G32 Z-0.755 F1.2422
N1350 G0 X2.8
N1355 Z1.1173
N1360 X1.7144
N1365 G32 Z-0.755 F1.2422
N1370 G0 X2.8
N1375 Z1.1173
N1380 X1.702
N1385 G32 Z-0.755 F1.2422
N1390 G0 X2.8
N1395 Z1.1173
N1400 X1.6904
N1405 G32 Z-0.755 F1.2422
N1410 G0 X2.8
N1415 Z1.1173
N1420 X1.6795
N1425 G32 Z-0.755 F1.2422
N1430 G0 X2.8
N1435 Z1.1173
N1440 X1.6692
N1445 G32 Z-0.755 F1.2422
N1450 G0 X2.8
N1455 Z1.1173
N1460 X1.6594
N1465 G32 Z-0.755 F1.2422
N1470 G0 X2.8
N1475 Z1.1173
N1480 X1.65
N1485 G32 Z-0.755 F1.2422
N1490 G0 X2.8
N1495 Z1.2947
N1500 X1.8065
N1505 G32 Z-0.755 F1.2422
N1510 G0 X2.8
N1515 Z1.2947
N1520 X1.7802
N1525 G32 Z-0.755 F1.2422
N1530 G0 X2.8
N1535 Z1.2947
N1540 X1.76
N1545 G32 Z-0.755 F1.2422
N1550 G0 X2.8
N1555 Z1.2947
N1560 X1.743
N1565 G32 Z-0.755 F1.2422
N1570 G0 X2.8
N1575 Z1.2947
N1580 X1.728
N1585 G32 Z-0.755 F1.2422
N1590 G0 X2.8
N1595 Z1.2947
N1600 X1.7144
N1605 G32 Z-0.755 F1.2422
N1610 G0 X2.8
N1615 Z1.2947
N1620 X1.702
N1625 G32 Z-0.755 F1.2422
N1630 G0 X2.8
N1635 Z1.2947
N1640 X1.6904
N1645 G32 Z-0.755 F1.2422
N1650 G0 X2.8
N1655 Z1.2947
N1660 X1.6795
N1665 G32 Z-0.755 F1.2422
N1670 G0 X2.8
N1675 Z1.2947
N1680 X1.6692
N1685 G32 Z-0.755 F1.2422
N1690 G0 X2.8
N1695 Z1.2947
N1700 X1.6594
N1705 G32 Z-0.755 F1.2422
N1710 G0 X2.8
N1715 Z1.2947
N1720 X1.65
N1725 G32 Z-0.755 F1.2422
N1730 G0 X2.8

N1735 M9
N1740 G28 U0.
N1745 G28 W0.
N1750 M30
%
 
They tell ME to try CNC, it'll be easy they said. Naw that's alright.....Dave's pictures


 
Thanks Jim. I'll try them tomorrow.

Ive not gotten the graphics to work on this machine. I'll just set it away from everything and air cut.

Yeah, CNC is EASY..............just load a part and push the button right? Like my signature says " That wasn't a crash, it was an premature rapid move at an unfavorable location. "

Again thank you everyone. I have a lot to do tomorrow morning.
 
Thanks for the help Mike ! :encourage:
 
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