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Messages - Timbob

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1
General Mach Discussion / Re: mach3 turn threading issue
« on: September 15, 2019, 10:20:27 PM »
Do you have a licence for Mach?

2
General Mach Discussion / Re: Motion controllers - Take me to school
« on: August 31, 2017, 03:30:26 PM »
The AM882 is excellent. I have 5 running from an ESS, flawlessly. hey have an auto setup for getting a baseline, and a free software tuner for the finer stuff.

3
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:57:45 PM »
why would you have set the spindle pulley to .67 ?????

A combination of what my manual said, and that .67 is the motor to spindle ratio. It made sense in my mind, but I can see how it made a problem. Again, it DID work before at .67

4
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:55:31 PM »
Looks to have been the problem. Why would it have worked in the older version with a .67 ratio? Granted, I did have threads being wiped off for the last 2.5" of a 4.5 cut, but it was good up until the spring passes. Also, why is the spindle response slower in the xml i posted earlier vs the one I attached just now? This one nails the speed within a second and holds. The other starts slow and then gains and levels out.

Thank you so much for the help. Whenever there is a problem, you are usually the first to help. This board is lucky to have you.

Tim


5
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:44:23 PM »
seems too much of a coincidence your spindle ratio is set to 2/3 ;)
Hood

Dear God, if it really is that simple, I'll never live it down. I'll try it right now.

6
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:42:38 PM »
That is, if I set the pitch to 10.666667 TPI, .0938", the threads come out at 16TPI, .0625" .

7
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:40:09 PM »
OK, here's an interesting bit: If I change the thread t exactly 2/3's of what I want, they work perfectly. 16TPI, Clean and correct.

What the heck?

8
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:22:31 PM »
I'm using a VFD controlled through mach on a G540, through LPT. Ratio is correct at .67 . I might have to post a pic of the threads. They are really quite lovely! Just useless  :'(

9
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 02:08:26 PM »
Turned it off. Exactly the same.

10
General Mach Discussion / Re: Bizarre threading problem
« on: November 03, 2013, 01:53:23 PM »
XML attached.

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