Tree Models

[jabuffi]

Does anyone know/know where to find a comprehensive explanation of the mills that Tree manufactured? (i.e. technical details of each model) I met a machinist who mentioned he had picked up a CNC Tree at auction about 5 years ago, and it was used then... he hasn't touched it since he got it into storage, and is thinking of letting me get it out of his way. Before I go see it I thougt I'd do some research on the machines, I'd never heard of the brand before last week. Just want to know what I'm getting into.

[motomitch1]

http://www.3sincorporated.com/co_info.htm

[Adobe Machine]

Or post a photo, I can identify most made in UDS tree mills.
They are excellent Iron, they did have some control problems, but the Mill itself is outstanding.

Adobe (old as dirt )

[jabuffi]

Thanks for the link, but as far as I can tell it appears their website doesn't offer anything that explains what various models Tree offered, but mainly that they can rebuild pretty much any of them... Which is great if I get the machine, but the situation is such that I need to know when I go see the thing (for the first time!) whether or not I want to trouble my friend any further... hence my desire to seek out a sort explanation (read "catalog") of their products... Like I said, it's a CNC rig, so hopefully that narrows it down a little bit (obviously I don't even know how much if any they were involved in manual machine production). I just want to learn the ins and outs of what they sold... Take for instance Adobe Machine's comment on their control problems. What, specifically, were the issues?

Getting long-winded with questions:
1.) What style/nature of programming did they use?
2.) Given that they have some programming problems (please feel free to illustrate any and all) would it be possible to update the software driving the steppers? Is there some other fix available (other than gutting drivers, computer, and software)?
3.) Did any of the machines come with/have capability to operate a 4th axis?

Any input is valued!

[RICHARD ZASTROW]

I need all the typical specs for a Tree 320

[Adobe Machine]

Jabuffi: as far as I know, all models used iso G code. Again, after 1979, all used servos, their encoders being on the ballscrew, usually not the servos themselves.Some of the later models had 4th axis capability but those were VMC,s
I'm sure there are other fixes, but I had a lot of fun tearing out all of the old stuff in both cabnets, and starting over. At least I can fix it if it dumps.I did adapt all new servos and planatary reducers as I needed torgue and accuracy.
The Iron is good ( except some of the later imported models) but I do not think any of the controls are supported anymore.. have a couple of friends that have mid eighties mills and have had few problems.
If I were buying a used , untested Tree Mill figure a retrofit in the purchase.

Richard Zastrow: I will go through some of the Tree catalogues in the next days or so..hmm may have one on either a 320 or 325, will look and get back.


Adobe (old as dirt)

[jabuffi]

Thanks! I really appreciate the answers! I wouldn't mind tearing out the guts and rebuilding the thing, just means that it would be down for a week or two... Being new to this type of work though, I have to ask: What would it cost if I were going to gut the system and go with new hardware/software?

Suppose two cases:
1.) "Just make it work", i.e. just get new controls (I assume software only), don't adapt servos/ballscrews anything else.

2.)"All the bells 'n whistles", i.e. great software, new servos/planetaries, new ballscrews, 4th axis capability.

Just a ballpark on the above two scenarios.

Last bit before further replies (I love to learn, so I ask lots of questions...): While I was doing some level of rebuild on the machine, how much trouble would it be to install handles on the ball screws such that the machine could be operated in a "manual mode"?

Finally: If I were doing an entire overhaul (above option 2) would I want/have to try to use components of the old "computer" for the control system? Or is there a (reasonable) way to use a contemporary desktop PC for the programming and driving of the machine and thus completely remove ALL old electronics?

[Adobe Machine]

These questions are real hard to answer not knowing the Tree model, and the condition of the present electronics.You may be able to use your present servos, you may be able to use the encoders, you may be able to use some of the relays, but If the controls are toast, then you will need a controller ( breakout board) servo amps,) a PC and software matched to the controller,wiring and the ability to read/interpert electrical diagrams , test and diagnostic ability.The other questions is how is your spindle controlled ? Programable VFD ? DC servo type motor ?
I would say that if you need new ball screws and bearings, then if you got the machine as a "gift"( I.E. free) sell what you can on E bay as parts and look for a better machine.Ball screws, ABEC 7 matched bearings etc = $2800.00 plus,
Needing new ball screws means the machine was abused, or overused or the oiling system is inoperative or plugged. That would mean the ways, gibbs and other sliding surfaces are most likly in need of re-scraping or are just junk.The spindle is another issue that can get real pricey .I do not say that you would not have the skill and knowledge to repair, regrind a spindle, but that is a Science and Art, just second to brain surgery. Check the posts by Walt @ SGS,and I know HuFlungDung also rebuilt one of his machines spindles, but he is a highly skilled machinest/mechanic. Walt does it as a living,and have heard nothing but good about his skill and product.
For a retro-fit your cost can be anywhere between $3000.00 to $12,000.00
depending on how you want to configure, bells and whistles, software etc..and believe me there is a learning curve that takes time and concentration.
Best advice is be carefull of your purchase, read all the threads on mill retrofits you can, then look at some of the new offerings for three axis mills, there are a lot of nice CNC mills ,new, done with good controls for $12,000 to $21000.00, have a warrenty and service.

Adobe (old as dirt)

[jabuffi]

I suspect that, mechanically speaking, the machine is in fine shape... i.e. the ball screws, ways, gibbs do not need a rebuild. Given the pricing indicated above, I don't think I'll mess with the machine if I receive any indications otherwise.

I was told that at the time it was bought at auction by my friend, it was fully operational (sold due to shop closure). He's very concientous (sp) and sealed the machine and all parts in plastic before storing it. So, hopefully, it might even be possible that when powered up it would run just fine. But, knowing that many others have cited "control problems" I'm fully prepared to do an overhaul on the controls system.

If that were the extent of my refurb, I'd need what? Computer & software, breakout board, and probably replace the servos... I can build a computer, but any recommendations on breakout boards/servos/software?

[Adobe Machine]

RICHARD ZASTROW: Sorry, I had info on the Tree "310" and "325" Pictures and specs enclosed. I have one more box to go through, possibly will find a 320.

Adobe (old as dirt )

[RICHARD ZASTROW]

Adobe You may be old as dirt but I have at least 1 year on you. The reason I'm asking about the Tree 320 is there one available in good mechanical shape but lousy electronics. Asking price is $1,000. Might be a candidate for resuscitation.

[Adobe Machine]

Well I would do it in a heart beat ( hey we may not have a lot of those left ),I know that I can re-tro a 3 axis, with 4 axis capability for less than $3,000.00 and make a good , accurate machine if the mechanicals are in good shape..., thats about $4000.00 plus transportation ? And your labor..Takes awhile, but its fun..(still looking for my 320 file )

Adobe (old as dirt)