VFD interference problem

[m_c]

You're most likely getting a ground loop through the parallel cable shield. As you're using a ribbon cable internally, try unscrewing the parallel connector from the cabinet and see what happens. If it cures the problem, you can either come up with some way of insulating the connector, or just cut the cable shield near the connector.

[JAZZCNC]

If it cures the problem, you can either come up with some way of insulating the connector, or just cut the cable shield near the connector.

It's Fibre Glass cabinet so won't be that.!!

Okay but now, where do I go ?

The good old US of A. . . . . PMDX126.

[eurikain]

The good old US of A. . . . . PMDX126.

How about NOT USA ? CSLab ? And while I'm at it, why not go with ethernet motion controller instead of a BOB ?

[m_c]

It's Fibre Glass cabinet so won't be that.!!

Good point. I'll just go back to sitting in the corner and keeping quiet!

[JAZZCNC]

Good point. I'll just go back to sitting in the corner and keeping quiet!

Nobody puts Baby in the Corner.!! . . . . You keep on Dancing Mc

How about NOT USA ? CSLab ? And while I'm at it, why not go with ethernet motion controller instead of a BOB ?

Well yes that would be my first choice but your talking different animal and cost depending on model.

[eurikain]

Yes but if I order the PMDX 126, 160 Euros + tax when it gets here, you're looking at the same price than the 230 Euro 4 axis motion controller they've got at CSLabs. Plus, really, I think I can re-use it in the future for another build.

Are there any choices other than CSLab, for a decent controller ?

[JAZZCNC]

Yes there are but by time you have bought decent BOB to match they are not any cheaper than IP-M. While some like Ethernet Smooth stepper may beat IP-M on features(that you won't probably use) Nothing touches the IP-M on quality for same money.

Just be aware the IP-M isn't ideal if your using Slaved motors.

[eurikain]

What if I buy an ethernet smooth stepper as you told me a few weeks back ? ESS smooth stepper ? That would prevent the ground loop going back to the PC since it's ethernet based.