I have a problem using either the built in Thread Mill Wizard or the New Fag Solutions ( add on ) when trying to thread mill anything INSIDE. I've gotten it to work at one time and have programs I generated that still work ( older version of mach I think) but anything new seems to crash the tool with wierd movements just before it starts the thread. Doesn't matter if I start from bottom or top. The first move line is always OUTSIDE of the part and wants to rip through the side of the tube Im threading. After it rips thru the part on the edge ( aluminum ) it threads perfect

It's obvious from the code in the first line why it does this but I cant figure out HOW COME the wizards do this. 3.043.022 Mach 3- Ethernet Smoothstepper.

Ive tried to run in Absolute and Incremental, Ran the same wizard on my desktop machine with the default MACH 3 setup and it generated the same code. I CAN make OUTSIDE thread programs without issue.

1.185 Max ID threads

1.125 max depth

.730 OD 5 tipped cutter

G0 G49 G40 G17 G80 G50 G90

M6 T10 (TOOL DIA. 0.73)

G20 (Inch)

M03 S3600

M08

G64

G00 G43 H10 Z0.1

(Right hand ID Climb)

(WARNING THis is going To RAPID down to Z-1.125)

X-0.247 Y-0.41975 ( WHAT DOES THIS DO ? Besides rip through edge )

G00 G41 P0.365 X0.17275 F5

G00 Z-1.125

G03 X0.5925 Y0 R0.41975

G03 X-0.5925 Y0 R0.5925 Z-1.0938

G03 X0.5925 Y0 R0.5925 Z-1.0625

G03 X-0.5925 Y0 R0.5925 Z-1.0313

G03 X0.5925 Y0 R0.5925 Z-1

G03 X-0.5925 Y0 R0.5925 Z-0.9688

G03 X0.5925 Y0 R0.5925 Z-0.9375

G03 X-0.5925 Y0 R0.5925 Z-0.9063

G03 X0.5925 Y0 R0.5925 Z-0.875

G03 X-0.5925 Y0 R0.5925 Z-0.8438

G03 X0.5925 Y0 R0.5925 Z-0.8125

G03 X-0.5925 Y0 R0.5925 Z-0.7813

G03 X0.5925 Y0 R0.5925 Z-0.75

G03 X-0.5925 Y0 R0.5925 Z-0.7188

G03 X0.5925 Y0 R0.5925 Z-0.6875

G03 X-0.5925 Y0 R0.5925 Z-0.6563

G03 X0.5925 Y0 R0.5925 Z-0.625

G03 X-0.5925 Y0 R0.5925 Z-0.5938

G03 X0.5925 Y0 R0.5925 Z-0.5625

G03 X-0.5925 Y0 R0.5925 Z-0.5313

G03 X0.5925 Y0 R0.5925 Z-0.5

G03 X-0.5925 Y0 R0.5925 Z-0.4688

G03 X0.5925 Y0 R0.5925 Z-0.4375

G03 X-0.5925 Y0 R0.5925 Z-0.4063

G03 X0.5925 Y0 R0.5925 Z-0.375

G03 X-0.5925 Y0 R0.5925 Z-0.3438

G03 X0.5925 Y0 R0.5925 Z-0.3125

G03 X-0.5925 Y0 R0.5925 Z-0.2813

G03 X0.5925 Y0 R0.5925 Z-0.25

G03 X-0.5925 Y0 R0.5925 Z-0.2188

G03 X0.5925 Y0 R0.5925 Z-0.1875

G03 X-0.5925 Y0 R0.5925 Z-0.1563

G03 X0.5925 Y0 R0.5925 Z-0.125

G03 X-0.5925 Y0 R0.5925 Z-0.0938

G03 X0.5925 Y0 R0.5925 Z-0.0625

G03 X-0.5925 Y0 R0.5925 Z-0.0313

G03 X0.5925 Y0 R0.5925 Z0

G03 X-0.5925 Y0 R0.5925 Z0.0313

G03 X0.5925 Y0 R0.5925 Z0.0625

G03 X-0.5925 Y0 R0.5925 Z0.0938

G03 X-0.17275 Y-0.41975 R0.41975

G00 G40 X0

G00 Z0.1

M5 M9

M30