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Hello looks like a HY-TB3DV-M 3 axis, except for the missing fan. ++ David

That N11 tag on the wiring, I'd guess that should be Neutral. What do the other tags on the input power wires say?

Going by the socket mounted ICs (most probably all optos), I'm going to guess that it's not something recent. It's also something reasonably well...

Just a wonder here..... what if I connected this floating earth malarky through a seperate wire to an earth spike, providing a proper earth while...

Below is a photo showing 0 continuity between the earths and actual earth. The RCDs are not connected to the machine's earths, would explain why it's...

Thanks David, just what I needed

I should probably have used the correct term in my last post. Any earth for protection purposes is what you'd technically call a Protective Earth...

Ye, took me a while to get my head around it, but it seems to be a legitimate thing. Welcome to google '3 phase no neutral floating earth system'....

That doesn't sound right. The standard earths should be earthed, as that's safety critical. I'm not sure why you'd earth the neutrals on a...

The floating earth appears to be by design, All the standard expected earths are connected together on a terminal strip mounted inside the cabinet....

Yes, testing with a 3 phase generator and have a digital phase convertor fitted for the permenant supply.

If things aren't earthed properly, then the various filtering capacitors in the drives/PSUs can cause floating voltages. So I'd want to know why...

Hello, There is 2 ways: 1) You can use Y and A axis output and set them as "slave" in Mach3 to "link" the both axis; in this case, of course...

Ye, I'm testing on a 3 phase generator and I've a digital phase convertor that will be the actual source when she's going. I'm terrified of...

Do you have 3ph in your shop ?

The first thing to do was strip down and see what needed doing. The bed ways and head come off pretty easy and most of the rust was on the surface...

Hey guys, no problem and your welcome, I have lots to do but it's good to be back in play again even if it is only part time at the minute...updates...

Hi David welcome to the forum !

Hello both ;) I join this forum for the same reasons. Thanks to admin for adding a CamBam section. ++ David

Wojtek, where can we get some further support on things like probing? The user manual has 2 examples, yet nothing to do simple probes like Sides of a...

Prototype PCB!

I suspect the stepper controller would get rather upset if it suddenly encountered loads of backlash / hysteresis between the drive and the feedback....