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Author Topic: Added Second Parallel Port - Now spindle is no longer smooth  (Read 1013 times)

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Offline Vogavt

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Added Second Parallel Port - Now spindle is no longer smooth
« on: March 31, 2015, 09:16:19 AM »
Finally got Mach3 to recognize the second PP after downloading and installing the correct drivers. Used tests outlined at this and other forums for checking pin voltage.

Now, no matter what speed the spindle is turning at, is it pulsing in at a frequency directly correlated the rpm.

I'll never get a satisfactory finish in the aluminum this way nor could I stand that annoying undulating sound.

Maybe it's a simple setting somewhere that needs tweaked.
Any help would be very much appreciated.

I've already searched (yesterday and this morning) in this forum and the "zone" but haven't found anything to help.


Mach3 v.62, XP Pro SP3, Gecko 540 on PP1, cnc4pc C10 on PP2 (nothing connected on PP2 yet)

Offline Vogavt

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Re: Added Second Parallel Port - Now spindle is no longer smooth
« Reply #1 on: March 31, 2015, 02:27:42 PM »
Mr. Peter Homann, you sir are a GENIOUS!

I haven't a clue how that setting got changed, but now at 500 and it's smooth as silk again!

Appears to have had no relation to the second parallel port but possibly my clickity-fly with my mouse, just possibly...
Could have also been a corrupted xml at the most inopportune time, but aren't they all..
Re: Added Second Parallel Port - Now spindle is no longer smooth
« Reply #2 on: March 31, 2015, 03:54:48 PM »
What was the fix?
Milton from Tennessee ya'll.
Re: Added Second Parallel Port - Now spindle is no longer smooth
« Reply #3 on: March 31, 2015, 03:56:26 PM »
Never mind, I'm slow today.  Took me a 2nd look to click on your link.
Milton from Tennessee ya'll.