Project Beaver

[OMLCNC]

You will be fine with the 24VDC Din rail. PS.
But not for the 80V one, that would be best with a toroidal type that is putting out about 68V DC

Re the sensors you can use the switches as travelling ie they move with the gantry etc and have fixed taargets at each end that way you will only need three. Also check if you need NPN or PNP type for the controller you are using.

Thank you Clive, your post I understand, after that Neal's post #35 Whoosh straight over my head - "CSMIO-IP/M, I suggest NPN N/C proximity sensors" for example NPN = Polarity, N/C = Normally Closed, CSMIO - IP/M = ??? Some bits I understand of Neal's post in practical terms. Yep i do get it, its the motion controller, me being thick!

I only say this, not as a criticism of Neal but to demonstrate my level of understanding when it comes to electrics/CNC, (The last time I did CNC lathe work we used paper with holes in it, and you gave programmes on card to a nice lady to run on the main frame, before PC’s were around)

Then #36 Mike's post "Pro-Tram units to tram the spindle" not a clue, well can guess
#37 Dean's post mostly understand, #38,#39,#40 I get the general idea, but too early on my learning curve.

SO I think what I should do is go away and do a wiring diagram and come back with more questions (I'm going to need one anyway to wire it all up). Then find out were to get all the components from.
I will start by looking at Joe Harris wiring diagram (Thank you Joe) as my machine is copied from his.

One other point I am thinking about is that I already use 3phase in the workshop by one of these http://www.ebay.co.uk/itm/TRANSWAVE-...0AAOSwEzxYR~K4 is it any use for my spindle or am I just being penny pinching on the inverter?