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Need help on threading issues' CNC code

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Hello

This is to explain my other post on the grammar. But to also ask for help on this CNC lathe.

Well At first i did try to form proper sentences and paragraphs. But when your pissed off its' easy to ramble on. After around 50-60 emails and the same idiot asking me what the issue is i tend to copy & paste. Not all of my post are just one big cluster ****!

How difficult is it to do a simple threading operation for a 7-16 nf. ( see images below )

And this is what i want.

486823_4832195368120_887865746_n.jpg

This is the code that is generated by their program.

#THREADINGSUB
G91 /Use Relative Offsets

/ External 20 TPI Threading Command
G33 X-0.0298 Z-0.5 I0.003 K0.05

/ Sharp Edge Breaker Pass
G1 X-0.0037
G1 Z-0.5
G0 X0.0037
G0 Z0.5

/ Thread Chasing Cleanup Pass
G33 X-0.0298 Z-0.5 Q1 K0.05

M17 /Return

They for 4 years had never even replied back on this simple Question why does it say error m17 subroutine return without g25 subroutine call:

If i replace the M17 with m25 it compleats the cycle How ever the threads are cross threaded before it even get to the last command. ( see images below )

I replaced the encoder but the issue is the MN400 controller.

And Yes Adam I read the manual dozens of times. Its simple its a piece of ****. I ran a Hardinge super slant for years and other CNC machines. I'm not what you would say an expert. But this astounds me. The part should only take a minute to make not 10.

I fully understand that programs need to be tweaked out but after 6 years come on. If i don't carefully check the program with out a cutter or the tool post on the slide it sometime crashes because the program tell it to go like this G00 X 39567.3333333333

that doesn't happen all the time. And yes i do a dry run on the computer. I just have to go thru 3-4 hundred lines to be certain that that doesn't happen again.

Or the G03 & G02 radius commands cut strait in their so called wizard. But i got that worked out.

This is the simple part i wanted to make.

486823_4832195368120_887865746_n.jpg

And this is how i have to do it.

4dbe35d.jpg

This is my cutter.

4dbe2ef.jpg


Also the picture of the thread below isn't the 7/16 size but that's how they all come out every time.

4dbe30f.jpg

This is the code that is generated by he software.


#THREADINGSUB
G91 /Use Relative Offsets

/ External 13.0039 TPI Threading Command
G33 X-0.0458 Z-1 I0.003 K0.0769 T2

/ Sharp Edge Breaker Pass
G1 X-0.0057
G1 Z-1
G0 X0.0057
G0 Z1

/ Thread Chasing Cleanup Pass
G33 X-0.0458 Z-1 Q1 K0.0769 T2

M17 /Return

Thanks Austin
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