Considering a Full Rewire on a Working Schaublin 125 CNC

You are absolutely right about most of that, and it’s certainly many months in the future.
But one nitpick: what I want is not a perfectly synced machine/CAM system. It’s more a system where we don’t have to care about the sync. But let’s leave that aside for now. I can revisit it in due time and see whether it works the way I think it will or not.

Martin

Hi,
I want to give a quick update on my work, the belt for the Spindle encoder has been replaced.
Two belts have been installed same as RotrySMP has done. But I thought about this and think it is les helpful as I originally thought.
As this belt will likely “Dye” of old age, in that case the other one will also be brittle due to age already, but now it is in there and it does not hurt anything.

With the Spindle in good shape now I could test the full machine. Everything worked fine. Interestingly most of the “extended” machine was not even conked to the controller but controlled by directly wired relays, even with a notable amount of safety by locking functions out.
This includes the full tool changer, variator and back gear.

At this point I noted down some of it and started tearing the electronics and pneumatic bay down.
I also dismounted and shortened the electronics box.Their seems to be space for everything in the former pneumatics bay. If that is the case I will use the electronics box for tool holders, chucks and that stuff, if I need more space I will use that space as needed.
Also I did make up a bit of a control panel in CAD and made a cardboard variant.

I think that is it so far.
Martin

Wow, you hit the ground running on this one Martin. Great progress.

I also thought my cabinet had lots of space... until I mounted everything and started wiring it up. Ended up having to stack a relay board (soon to be replaced by the second 7i84) above the 7i92 as I ran out of space. I guess I have taken a lot of space with the spindle VFD, pre and post filters and brake module.