1200mmX900mmX170mm 4axis cnc

[Doddy]

Finish the power supply, thanks everyone for the help.

Neat layout.

Minor observation:-

It can be a good idea to wire a bleed resistor across the output - nothing too big, but enough that you're not holding a substantial and dangerous charge long after removing the power.

Also, there's some concern with the use of screw terminals particularly with high-current circuits and when vibration may be present that the screws can loosen over time.

[Nickhofen]

Finish the power supply, thanks everyone for the help.

Clive,my mistake,psu delivers lower voltage than this i mention.
Thanks for watching my back.

[Nr1madman]

Nice progress!
Does it feel good to move forwards? :D

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[cropwell]

Does it feel good to move forwards? :D

In my case it would be good to get back to where I started - spent the afternoon reassembling my lathe and getting the safety switches operating reliably. Then reinstalled the VFD (when I took it out months ago to fix the broken mounting lugs, I photographed the connections and labelled them as I disconnected each one). Now I am getting a code that says low DC bus. I sense a new thread coming if I can't sort it easily.

[Nickhofen]

In my case it would be good to get back to where I started - spent the afternoon reassembling my lathe and getting the safety switches operating reliably. Then reinstalled the VFD (when I took it out months ago to fix the broken mounting lugs, I photographed the connections and labelled them as I disconnected each one). Now I am getting a code that says low DC bus. I sense a new thread coming if I can't sort it easily.

What your multi meter says, did you take any measurements?

[cropwell]

What your multi meter says, did you take any measurements?

No Sir, It was working fine as a VFD before I took it out. My next step is to double check the connections, but not today, I have had enough. I will start fresh tomorrow, but tonight is beer, roast chicken and relax.
This will be a new thread I'll bet. I don't want to hijack yours !!!

[Nickhofen]

No Sir, It was working fine as a VFD before I took it out. My next step is to double check the connections, but not today, I have had enough. I will start fresh tomorrow, but tonight is beer, roast chicken and relax.
This will be a new thread I'll bet. I don't want to hijack yours !!!

Do not worry about hijacking this thread,just bring the chicken and beers, I will buy some souvlakia with tzatziki also,lol!

[cropwell]

In my case it would be good to get back to where I started - spent the afternoon reassembling my lathe and getting the safety switches operating reliably. Then reinstalled the VFD (when I took it out months ago to fix the broken mounting lugs, I photographed the connections and labelled them as I disconnected each one). Now I am getting a code that says low DC bus. I sense a new thread coming if I can't sort it easily.

You find things out which are peripheral to the problem - code Lv on the VFD display only means Low DC bus and this is OK when the power is running down.

But I have diagnosed the problem - I reassembled with the microswitch that is for the headstock gear train safety cover swapped with the chuck guard switch (one is NC and the other NO). So my next session in the workshop will fix that and the covers will go back on. Job done ! No need for a new thread

[Nickhofen]

Those are good news cropwell, an easy fix is always preferable than something that will cause headache or need money to be fixed,right? ;-)

[Nickhofen]

UC300 with UB1 will cost 320$ with out shipping and taxes,this is far away from badget right now.....