Electronics for New Machine + Chinese Spindle + VFD

[mturneruk]

Thanks Jazz - Really helpful.

The thing that attracted me to the UC100 / 300 is that they have an alternative to Mach3 called UCCNC. Which seems nice and is cheap.

However having looked at that polkeys 57CNC it looks really good and it supports Mach4, should i wish to upgrade in the future. I have tried Mach4 and it is a lot better just in terms of the interface. I am not convinced its going to do anything else for me however.

Am I right in saying that I don't need a separate BOB if I go for that polkeys 57CNC?
It seems to suggest that the motor outputs are isolated and having looked at the manual I can't see any reference to a bob? How would I connect it ?
It also looks like I might have to wait a while if i want one of these in the UK.
Looks like that 57C is happy on a network as well, so i could eliminate USB.

With the RFI Filter would you fit that inside the case before taking mains power to both the transformer and the VFD? Also I read something in the manual about not putting a switch in between the mains and the VFD. Couldn't really understand that.

As far as spindle speed goes. I have guessed up to now with my old machine to be honest. Based on the sound of the cut I have sped up or slowed down my router until it sounds happiest. I'm sure you will laugh. It would be nice to be able to control that via the software.

So would 50V be enough?
I am running these 4NM Steppers...
and planning on using these drivers which seem to be recommended by CNC4You for those steppers.
I will speak to them tomorrow.

Nice one
Thanks again