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Did you get it sorted out? I switched to LinuxCNC:

Can see more details here: https://www.forum.linuxcnc.org/27-driver-boards/36495-retrofit-of-precix-5x10-cnc

I used the same motors though.

I am sure it's worth it, they are great machines. Send some pics if you have a chance, be neat to see how they are different;y configured.
Let me know if I can help, I know the guy who operates it...

Hi there,

The machine worked pretty decently until a stepper went out. My friend got new steppers and controllers for it. He just recently passed away, but I think it's still working.
My...

Thanks for the info. That is what I was thinking as well.

Looks like I have another bad VFD.

Update...

I bought another VFD this time a KBVF-23D.

I have it wired with hot to L1 and neutral to L2. The connection reads 120V at the VFD board. The jumper is set to 120V operation. The...

Finally got a POT and tested it with the same result. No matter what the POT is set to I get FULL speed. Somehow I think I am still getting voltage running through the ground and screwing me up. It's...

Thought maybe my crappy meter was connecting P1 and P2. So I just did my test without the meter same result.

Thanks!

So i reconnected everything except I left the VFD on a separate wall plug so it wasn't spliced into the main. Turned everything on and put my voltmeter on the P1 and P2 POT input of the VFD. With the...

Thanks AL, this is really causing me trouble. Just a hobby machine, but I finally purchased all the parts and would love to get it running.

Okay, so don't check to earth ground.
I just check the...

I am sure my meter is crap as well... just a cheap-o meter. So could you suggest a good way to test, making sure I have things right?

Alright, I have done more testing and am still scratching my head...

I have disconnected and isolated the VFD from everything else. I made a new cord from the wall power 120v and connected it to...

I am retrofitting an old EMCO mill with help from this forum. Without RCREDD I would be really lost, but I think I managed to screw something up even with his expert capabilities...

Right now I...

Looks like a very impressive build. Thanks for the info and image and pdf.

Do you often use the CW CCW function of the spindle? Would that be for tapping?

Thanks TulsaTurbo for such a detailed instructions. I have trying to figure this out. My question is that the controller for my mill doesn't have any available input switches. Can I just wire the...

Just posting this for all interested. This is from RCREDD and his conversion so he could use a 4th axis. All thanks go to him for this well laid out and informative explanation of his retrofit.
...

You sent it to me, with your permission I will post it if you'd like.

I have been trying find the answer to that question as well.

There is this one...
EMCO PC MILL 50 CNC w/Computer, Software & Manual | eBay

with computer and software for $5,800 a little high...

Nice pics, thanks for sharing!

So what do you search for to find that rotary axis?
Just day dreaming now, I have been searching on Fleabay for parts.

Thanks for pointing out that power...

well, I would have paid 200$ for that board before I decided to retrofit, so Ill bet you could get some money for it... from someone on this forum. that would take you a long ways in getting it...

hi the-jackal,

RCREDD is helping me retrofit the PC Mill 50 I have. What are you looking at retrofitting? an EMCO as well?

It is my understanding that the GECKO controller will not drive my...

Below is the quote I recieved from EMCO about the ISA RS485 proprietary board. They were very nice and prompt. $1,136.60 is way out of my price range so I guess I will be retrofitting. I saw there...

Just in case someone has a similar problem.

I I used Mach3 to get it working and it worked perfectly. I just had to find the pinout and then rewire it so that the pinout was in a range of wires...

RCREDD,

So for $750 you've retrofitted with a 4th axis? Do you have any videos/pictures.

What is your business, just curious!

Pinouts: I have done just that, I helped a friend with a router...

Thanks for the pics! Very nice looking shop and system you have.

Now you are still using the EMCO RS485 board and original hardware right?

Do you like your mill?

I know Randy got a great...

I have a similar story to many on this thread. I recently purchased a PC Mill 50. I thought I could figure out a way to get it going without the board. :violin: I have helped people get started on...

Hi, I am new to this.
Couple of questions for the you guys. This forum is awesome and I have learned a lot from reading.

I am a computer geek.I took a class on CNC programming using Mastercam a...