Annoying issue with my cnc router
Good Day All,
Sorry If this is in thr wrong section.
I have a home built CNC router running mach 3. Was built in 2011.
Long story short.... Left machine running a finishing pass on some vacuum forming molds came back once finished and the spindle was sitting very randomly spinning in a none natrul way. https://youtube.com/shorts/OUIfTT_EAKI
Parts I have changed thus far....
A new pmdx 126 and 107 board have been fitted.
If any one can shed any light onto this i will be greatful as you all know, Its an expesive table if its not cutting.
Thank you in advance
regards Tom
Re: Annoying issue with my cnc router
I'd suspect the VFD. Your video doesn't show it, but there must be one, right? Sometimes they can lose their settings. Have you gone through all the parameters and made sure they're all set right? If the wiring is all tightly connected? (It's acting like something is loose and conducting intermittently) If there's nothing you can find wrong, replacing the VFD might be worth trying. If it behaves the same way with a new one, then replacing the spindle would be next.
Re: Annoying issue with my cnc router
Quote:
Originally Posted by
TECNC
Good Day All,
Sorry If this is in thr wrong section.
I have a home built CNC router running mach 3. Was built in 2011.
Long story short.... Left machine running a finishing pass on some vacuum forming molds came back once finished and the spindle was sitting very randomly spinning in a none natrul way.
https://youtube.com/shorts/OUIfTT_EAKI
Parts I have changed thus far....
A new pmdx 126 and 107 board have been fitted.
If any one can shed any light onto this i will be greatful as you all know, Its an expesive table if its not cutting.
Thank you in advance
regards Tom
Check the power to the VFD Drive and the wiring from the VFD Drive to the Spindle, it looks like you are missing a phase, this could be the wiring or the VFD Drive has a problem the spindle does not sound very healthy as well.
With the power off at the spindle plug check the ohms reading of each winding
Check
Pin 1 to pin 2=
Pin 2 to Pin3=
Pin 3 to Pin 1=
Pin 4 to Ground
Ground (spindle Body) to all 3 Pins
