Cincinnati Avengers --"Parts Wanted"

[Avenger5]

We run several Avengers most with live tooling and they make a lot of good parts but they are starting to show their age. I am constantly working to keep them all up and running. I am always on the lookout for sources of good information and parts. I have purchased one older lathe just for parts and completely stripped it down to the casting (that was very educational and kind of fun.)
I have been to the 850 SX threads and I am dealing with some of the same problems ie. worn out buttons and $$$ cards.

I would be interested in hearing from anybody who has Avengers or knows about good sources for parts. We might even be interested in picking up another one.

[CHAD LAWSON]

Working on 250T I now how you feel.

[Avenger5]

Nice to hear from somebody Chad.
Working on a 250T??? What are you up to; are you making repairs or just keeping it running?
I would be interested in hearing about your experiences with your Avenger.
I might be of some help if you need any.
I have been working with them for 10 years and have 5 of them, most with live tooling and 3 with subspindles.
I am always looking for information and sources for parts that can keep my operating costs down and keep our machines cranking out parts.
God bless

[CHAD LAWSON]

Trying to keep it running, we have 19 different Cincinnati Lathes and Mills. I am having a repeatability issue with the x-axis. It seems to come and go like a servo problem. I have checked backlash, lost motion between nut and screw, bearing end play on screw and swapped x and z axis encoders as well as swapped the servo board with one in our crib. The only thing i have not swapped is the drive and that is because i dont have any of the 611 drives. Everything else is Kolmorgen or 611U in the Cincinatti machines. I am currently looking for some information on tuning the servo to see if i can adjust it out. Although it is hard to tune something that does not occur all the time. I have spare boards, drives, and crts for most our cincinatti but not this one oddball.

[Avenger5]

The problem you have sounds like a tough one; and it's always harder to fix a problem when it won't stay broke long enough to find.
You listed most of the things that I would have checked.
Are you getting any Alarm codes or is it just not holding size?
I just had to replace one of our X axis ballscrews this spring, it was worn and had undesirable backlash the problem presented as intermittent chatter.
I would be surprised for it to be a servo problem without popping up some alarms, are you sure it isn't a mechanical issue, maybe even spindle bearings?

What is the drive # you need for your X axis?
What year or serial number is your Avenger?
Check out NuTek on Ebay they have parted out several Avengers and might have the spare drive you are looking for at a pretty good price.

[mike_Kilroy]

I know this is old post but I thought there might be others with Cincinnati Avengers who might be interested in a possible spindle resolver replacement ....

Saw some older posts by you on avenger machines and keeping them running... we sell to Cincinnati and work with them on retrofits and such. We are working on an idea to replace the expensive direct drive spindle resolver with a belt driven one like they used on some of the avengers. Would this be of interest to you? Let me know if so....

also, we do repairs for them and others on the Kollmorgen motors and drives here in Dayton, OH area..... we sold a lot of these to them originally and have supported them all this time. We sorta specialize in keeping the drives on the shelf here for quick swap outs too. Let us know if we can be of any help to you!

[themil]

Mike,

I have a friend looking for a spindle resolver on the Avenger what do you have as a replacement?

[mike_Kilroy]

nothing by myself, but with YOU a potential solution. We can talk about it Monday when Bruce gets back from vacation. I have a design for the dual resolver replacement, and you guys have the BOM and parts designed already to put 1:1 timing belt hardware around the spindle off to the side and spin a feedback device. The non-live tooling model of the Avenger used a simple resolver (your BOM calls it an encoder) so it will not work on the Avengers needing the dual resolver. We have designed a 3.5" dia x 6" long feedback unit with what will become commercially available resolvers inside that should be able to 100% mimic the dual big $ 40,000.00 one inside the spindle that died; object is plug-n-play approach: unplug the old broken one, plug that same cable into this new one bolted on with your provided hardware.

[Gabegarney]

I know this is a little old, but did anyone ever have any luck retrofitting their Avenger Lathe to get around the lead time on the MAG suggested dual resolver fix/retrofit?

[mike_Kilroy]

I dont think Mags long lead time is due to their delays but rather to the long lead time for the first of its kind new design with components with 12 week lead times themselves.... Once we build the first one the next should be much faster. someone in your neck of the woods asked us this week again for an updated quote on this replacement. someone must be the first to get it from paper design onto a machine to prove it out.

[Gabegarney]

Unfortunately, we only have one of these that needs fixing. Is there no way to integrate an off the shelf resolver into this system?

[mike_Kilroy]

cant use off the shelf resolver unfortunately. The whole scheme of this resolver is that it is TWO in one; one that goes around 1x per spindle rev for absolute information, and another that effectively looks like it goes around a lot of times per rev - for high accuracy control. That original resolver is available off and on by the OEM - depending on their mood at the exact time they are asked. And if they are in the mood to quote it, price is close to $ 50,000.00 with like 22 week delivery.