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Author Topic: Mach4 Threading having problems  (Read 1618 times)

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Mach4 Threading having problems
« on: March 05, 2017, 11:12:00 AM »
Hello I am run mach4 using pmdx 126 with pmdx 410. I am setup with signal index pulse for rpm have verified rpm is correct on screen set. Machine is up and running servo are tuned and have run some tests parts and now I am trying to thread I have use the wizards in mach 4 and tried some g32 code and I  keep getting pmdx-smartbob error, rpm too great for threading any ideal what is going on
Re: Mach4 Threading having problems
« Reply #1 on: March 31, 2017, 06:26:34 AM »
Hi !
i have tryed the mach4 (last version at today) threading wizard....

i think that the wizard have some bugs...

these are my impressions:

The result G76 code is not correct with the inserted settings..
The K parameter is partially incompatible with mach4 (the wizard generate a values from 0 to 3 and mach4 accept values from 1 to 4)
The G76 X end is not corrected with height of the thread and In this way the beginning of the thread is out of the piece (and the first passes)  ..

Has anyone else tried with success ?
Re: Mach4 Threading having problems
« Reply #2 on: March 31, 2017, 08:46:41 AM »
The error message is not saying that the RPM is to great, it is saying that the RPM
ERROR is too great. This can be caused by an S word in your G-code that is too
different from the actual spindle speed, or by feedback that is not working or is
incorrectly configured.

Our plug-in code uses the declared S word to calculate the initial parameters
for threading movement. The tolerance band is from 50% of the declared
speed up to 125% of the declared speed.

We will change the wording of this error message in our next plug-in release.
Steve Stallings
www.PMDX.com