Un-lobotomizing a Maho MH600T

You are really making a great job of that retrofit.

Thank you RotarySMP. You certainly are an inspiration!

Greet work..
How much ferror min_ferror rapid speed and acceleration per axis have you in config ?

This is what the config looks like right now: Same for all axes. The machine units is mm. Except the vertical MAX_VELOCITY is 40.0, because I would need to reduce the servo pulses per revolution in case I want to go higher (currently limited by step timings).

FERROR and MIN_FERROR are just the defaults from PnCconf (I think). Based on the current tuning, I might reduce them by an order of magnitude. Provided they work how I think they do. I need to look into that at some point.

Unbelievably good job! I can say that your wiring puts Maho to shame. I'm looking at my rebuild now with shame.
It's a pity about the missing servos. They weren't great, and neither were the servo amplifiers, but they matched the machine nicely.
I'd like to make a comment about the lube system. If you go to Marks rebuild on p165 you will see my detailed comments on it.
But to make it short moving bubbles are good. A few of mine didn't move and I found them blocked at the slide. Fortunately on my CNC rotary table when I had it apart. Just sludge and lacquered old oil in the drillings.
I don't know if you have the Vogel pump.
I'd suggest opening one of the brass items on those manifolds to see what type you have. With luck  it might look like this attachment. It is a  metering piston so it delivers a measured dose. The photo has the brass nut the wrong way around. Older versions may not have had that which means the brass piece was a metering orifice and they were hard to balance, with different sized orifices. Another giveaway is that the metering type all have the same number on them. I presume they just used the same large orifice all over.
With the metering type the pump should run until they all cock. The the delivery pressure rises and the pump runs another 15 seconds or so on the relief valve to the reservoir then switches off. Then the bubbles should move as the metering pistons deliver.
If you open it, check the little conical rubber cup down inside isn't stuck. Some of mine were, again sticky oil from lack of use. And then they pop out onto the floor. That's always fun.
I have a copy of the Willy Vogel manual if you want me to post it

Cheers,
David

Thank you for the compliments!

I have had pretty much the whole machine apart, and I had a few oil ports that were full of gunk as well. But those are all cleaned and open now. I did also open one of the metering valves in the past, and from my recollection it looked very similar to the photo you attached. And it does measure a certain amount every time the pump operates. The bubbles move a certain distance and then stop even if the pump is still running.

I made my own lubricator component, because I did not find anything else I liked. I have attached the component here, even though it is not 100% finished. It works much like you outlined. It runs the pump until the pressure switch activates, then runs the pump for 10 more seconds before it switches off. If it doesn't get the pressure feedback within 60 seconds it turns off and prints and error message. It runs the pump at first motion of the machine, and after that every time it has "accumulated" 10 min of motion.

To the best of my recollection, the bubbles move when the pump starts, and not when it turns off. But I am now travelling and unable to verify.

Thank you for the information. And if it's not too much trouble, it would be interesting to see the Vogel manual as well.