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Well, the spindle was a right faff, but the ball screws? No surprise there. These VMC 260s have a bit of a reputation for knackered ball screws....

Right, if you’re thinking of picking up one of these mills, there are two key things to check before you part with your hard-earned cash: Is the...

Hello The UC100USB must be connected to a standard parallel port breakout board (bob) as the ST-V2 or equivalent (the UC100 is only a motion...

Medal dedicated to Bulgarian footballer Asparuhov. A little more on my website.

Error

Unfortunately, the company has scrapped everything.

Everything has been sold. I don't know how to delete this post.

More developments, some hardware but mostly software including storing user values in non-volatile memory. Also a look ahead to the next PCB...

So pretty much after checking all the parts I decided to rebuild the 260, I was originally going to scrap the cabinet as it was rusty inside and...

If the drive Neutral (or L1/L2) terminals are connected to the N11 terminal, then it is a neutral connector. My guess is that whoever has wired it...

The supplies to the drivers all share the same nunbers, all off the same source. I don't fancy the previous owner to have been converting things from...

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...