Just this evening finished up my Hardinge Chucker / Gang tool machine retrofit ...9 days straight @ 12-14hrs/day.....well almost finished except for guards going back on, some wire ties, etc.
Was an Omniturn control, now a Fagor.

It is at 400 IPM rapids, I could go faster but for 5" Z and 20" X, I don't need to push it faster.

Today I ripped out the vari drive pulleys & spped change motor, and installed 5HP motor, drive & polly vee pulleys /belt.

I decided how my M codes work, and set the acc/decc in the inverter.. a satisfying feeling when it all comes together. Ramp 0-4000 forward, ramp to zero, then ramp 4000 reverse ....2 seconds up, 1.5 seconds down, smooth....

I'll have some pics to post soon

why did you swap out the omniture control? i look forward to seeing pics.

Some nerve you have to make this kind of post without pictures.

Deeeemerit!

QB

Ok......

Here's the overall view.




And the open door policy with all the guts & wires hangin out.




OmniTurn does some neat stuff, like use 12VDC instead of 24VDC for control functions, M code relays, etc. If that's not a PITA, then having some of the relays supplied with +12V and needing to go to common to energize, while having others more 'standardly' hooked up to common and needing +12v to energize, now -thats- a PITA to keep straight. Another neat trick, is changing wire colors from a cable connector to the back of the plug. You must keep track of connector pin numbers from one end to the other and forget colors....
Then there are the Fagor schematics with their own wire colors and numbers.
Mostly standard practice, but combining the two and keeping it all straight gets confusing.

The Fagor control/ pendant luckily had the same AMP connectors under the box as the Omniturn has. Just a matter of removing the pins and re-installing in the correct arrangement, but still reads a heack of a lot quicker than it goes in practice.



Tools piled EVERYwhere!

Had enough of the Vari-speed drive, and the wobbly/ rattly pulleys so out they came......






I thought the orig. 2 speed motor was at least 2HP on High speed, but it's only ONE

The Spindle pulley has room on it for a 1" wide Polly Vee belt. So, chucked it up in the lathe and cut the 10 V grooves across it.....








....more pics on moving the motor up in the base, (to keep the belt as short as possible) and the motor mounts that did that......next

dk

Have you ever used an onmiturn control???
Though I assume if you are asking you probably havent. They are quite atrocious.

...And why it became known here as 'The OmniTurd"....

They don't have nearly the bad reputation they deserve, not sure why? Not many actually sold??

The irony is you have people who love them because they just work and make them money, then you have the people who are pissed because they are ass-backwards.

I see you kept the OT gang slide assy.

I've got a buddy on the board here with 2 OTs, and both are VFD drives, one is a C-axis. He makes parts that are in-spec every day, lots of parts.

dkmc,

Is the varidrive completely wore out ? if not what are you going to do with it.

Scott

The Varidrive components are in good shape other than the surface rust you can see in the photos.
The speed change motor and screw, and the mount brackets are all there.
I suppose I might put the parts on EBAY....

Be glad you got rid of that Omni-Turd control. I have posted on here before of all of the troubles we had with them and their machine ( everyone had received lemons for machines. It is how the company handles customers that makes a difference) The screwed up part about the whole operation is that you have a company in New York that is responsible for one part of the machine, and their partner in crime is in Oregon!!
Who is to blame for what?
Sorry for the rant.
Stay off the Omni-Turn kids.

So far I'm ecstatic...

Well, a gremlin surfaced as well might be expected when operating things beyond design limits.
The 'new' 5HP 3ph motor is the typical 1750 RPM flavor with factory balance. It was gettin a bit jiggy around 2900 and the belt ain't no help, well, actually it's a big help amplifying the vibrations and harmonics up to the head and right out to the spindle nose.
Drat! I hate to go backwards on projects!

Factory balance works fine at 1750, not so good at 3000 and up.
(Back) Out comes the motor, and out comes the rotor. Apart again, naturally...

Motor exploded view



On the phone, local speed shop says "yep we THINK we can balance it,TWO HUNDRED BUX, maybe less"




Job Shop in Rochester, I guess what's left of Kodak
says "Yep, we can balance it, THREE HUNDRED and SIXTY dollars".



Why sixty? Why not an even $400 bux?

Anyway.....Speed Shop in Sayre PA says "Yep, we actually do them (motor rotors) from time to time, Sixty dollars"
Off we go.....and they did it in 2 hours to save me a trip back...cool.




The washers at the 1 and 7 o'clock position were added as well as a couple small ones in the front of the rotor:



All back together now, and improved to the point where the motor mount plate still has a minimal harmonic, but nothing translates up to the headstock.

I know a job shop in Portland that has a dozen Omni-Turns and they all run 2 shifts a day cranking out little parts that sell by the thousands.

We put some extra support parts on an OmniTurn recently for a customer. After reading all the comments about OmniTurds . . . I am hesitant to show what we did . . .

Glad your retrofit went well - sounds like you are done good with the motor balance. We have a 10HP Baldor motor TEFC motor singing along at over 7000 rpm in a Tree mill.

In this picture, in the back of the cabinet, lower left of photo, you can see the origional L bracket that held one of the 2 jack screws (left & right) for the motor plate, and also get an idea how much higher (about 7 inches I think) it is now:




Wider shot showing the front spacer for the belt tension jack screw:




In this rear view, you can see the hex head bolts on the right that go thru the cabinet and into the new rear motor plate support blocks. Also there are 1-1/4" square spacer blocks between the motor and the motor plate. The motor had to move about 1-3/4" toward the rear of the headstock for the belt to line up:
(Prevailing 'Machine Tool Grey' in this photo....)

Please post your adventures MG...we all have different favorite (and yucky) flavors we like or despise...
Maybe in a new thread tho...?

Nice looking machine.

I just figured out how to run my HCNC w/Fagor 8025 on 120v, and eliminate 3 phase.

Do you run flood coolant or oil?

Whereabouts in upstate NY are you from? Sayre was just down the road from where I am originally from. Doubt you could find my first home town on a map! That small. Lived in another small town just south of Elmira before getting married. Then in Horseheads until the sh$t hit the fan with all the companies in Elmira closing their doors. From what I've seen over the years, nothing good has happened to the area since then. In fact Watkins lost their race track. Don't know if Chemung still has that little track that was run by the Bodines.

Edit: We've got 3 older Hardinges converted to CNC using Fagor 8025 controls plus a CMS. Those 1 hp motors lack a bit for real machining. Not bad controls at all. Can't use Macro B on them, tho.

My Hardinge is a early 80's vintage with a Porter Peerless 4.25hp DC spindle motor. I run a solar system all 120v. All the lathe controls and motor amps are 120v, but the machine connect is 230v 3 phase.

In fact the only item on the machine that is actually 3 phase is the coolant pump. Everything else is 120v.

There is 2 transformers, one big one that converts 230v to 63v to power the spindle motor drive. Swaped a 120v transformer for that one, and the other required a wire jump. Still need to swap the coolant motor out.

Wonder if Hardinge knew there old HCNC's were green solar complient machines?...

Most likely I've been to your home town......

I was born in Elmira.
My shop is in Big Flats.
I was in Sayre last night!

As far as the racing aspect, Corning inc bought the track in Watkins, it is now WGI.......there is an Indy Car and NASCAR race there every year...?? Among others.

Chemung Speedrome was reopened, completely renovated & repaved about 8? 10? years ago but now the economy has nearly killed it.

dk