oops in the above pdf I do not have a feed showing for the 10amp fuse at the top middle, that gets fed from L1.

Hood

Nice, do you feel it was needed to have 24v supply for the CSMIO separate from the 24v controls or is it just "good practice"??

I think it is required that you feed the actual CSMIO from one supply and the I/O from another if you want to keep the opto isolation, could be wrong though but I am sure I read that in the manual.

On the Chiron I have a big 3 phase supply but it has 2 output channels that are not connected so I used that. On the plasma I got a couple of power supplies, one just for CSMIO, Enc and MPG modules  power side  and a bigger one for all the rest of the 24v (limits, MiniTHC, servo drives logic etc)

I got the ones on the plasma from Eastern Transformers, bought a few of each 100w and 10w as the price was good and I like to have spares.
Looks like I bought the last of them as they only have 5w ones left.
http://www.ete.co.uk/pss-ip20-miniature-series-5w-to-300w--93.html

Hood

Yeah its a bit vague - seems you can do both, they say one PSU is fine if there are no big contactors etc. I will get a couple of small pus's probably, I did have a nice PLC quality one here but overkill if it cant do all the job so two smaller ones will be better.

Now, lets complicate the mix

I want/need two spindles here - the main mill quill and a bolt on high speed one - this will be clamped to the main mill quill for starters. Yes it will reduce the Z travel a bit but lets see how it plays before version 2. The aux spindle will only be doing thin stuff and engraving etc so smaller Z travel is probably not an issue.

Obviously when i clamp on the aux spindle it will stop the main Z home functioning so i need two Z homes, maybe two Z++ limits as well?

Ideas -
Two Mach profiles? - The speed setup will be different for each motor, as will offsets probably and other stuff.
A switch for spindle 1 / spindle 2 - changes limits, motor control, vfd power, vfd control lines etc.?

Sounds complex but that's me all over, having this is crucial so I need to get ideas sketched up before I spend cash - it needs to be possible or the project will probably not go ahead. I am 99.9% certain it can be done, just need to get a head round what needs to be done;)

Two profiles would likely be the best way if you won't be using both spindles from the same code.
Hood

Yep, will only ever use one spindle or the other. I can definitely see two profiles being needed.

Looking for ways to switch all the lines needed -

Vfd supplies
vfd control and fault lines
vfd speed lines
limit switches for Z axis in two positions
homing for z axis in two positions
cooling pump for 24k spindle
probably others....

The programming for the CSMIO plugin I gather will need to be the same for both profiles?

Crunch time, orders to place, money to spend....

Got the screw kit sorted,
Got the pulleys sorted,
Got the controller sorted,
Motors...

Should I fit 750w all round or 750w to the X & Y axes and a smaller 200w to the Z axis ??

Just wondering about the ethics of fitting a big motor to the delicate quill axis.

The programming for the CSMIO plugin I gather will need to be the same for both profiles?

No I don't think that will be the case, the info is held in the profile xml I think and it will load each time you pen a profile.
Hood

OOh, nice

Motors are on order - went for 750w on X&Y and 400w on Z.


Drive belts, was going straight for HTD5 belts but it seems the GT5 profile is better suited to higher power stuff with less backlash, trouble is i cant find a stockist!

The HTD is easy to get but GT ??

I would go with the 750w for the Z personally, nothing really delicate about the quill other than the link between ball nut and quill and that should not pose a problem.
If you do go smaller I would say  400w minimum.


Hood