Cincinatti Milacron arrow 500 retrofit

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06 Oct 2014 16:45 #51813 by Enhanced
Hey guys.

To cut a long story short, I brought a arrow 500 approx 2 years ago, of another shop who had the machine for approx 8 years before that, and never used it, they originally purchased the machine through a company here in Australia, was suppose to come with a contract, but the contract fell through, as they didn't know how to use the machine, it sat there going to waste.

I purchased the machine approx 2 years ago now, and it's just sat there, havnt had time to even look at it.

The other day I thought I get the machine going, power it up, and turned it on, came up with memory failure, checked batteries and they had leaked everywhere. Anyway after doing some reaserch, I thought a retrofit would be ideal, and after doing a lot of reading on another forum, I've been advised to ask you guys the experts.

Anyway I spoke to the original owner of the machine, who purchased the machine new, and he told me, the machine had very little use as they were using it for prototyping back then, for aviation parts.
I spoke to him about retrofitting the machine and he said, that would be a great idea, as the motors have had little use, but the software in the machine will only handle small files, and what parts i machine, will be a headache.

Originally I decided to retrofit it to run mach3 software, only because I have another cnc that runs mach3, but after reading more and more, I've decided I'm going with the linux cnc software.

Anyway on another forum, and this forum, I've been reading all about Petes cincinnati adventure, and now it's I'm going to make it happen.

I understand it's not going to be a walk in the park, and whilst my build will be similar to Petes I plan on using my servo motors and servo drivers, and I'm wanting to keep the machine 3 phase.

What meca boards do u recommend I use, I would like to eventually upgrade the machine to have 5 or even 6 axis, would like the tool changer to work, and I understand I will need a computer to run the machine, what do u recommend.
Look forward to your feedback, will be greatly appreciated

Regards Brad
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06 Oct 2014 17:01 #51814 by cncbasher
Welcome Brad,
it should not be as bad as you think to convert , i'd go with mesa using the 5i25 pci express card for the pc and the addon 7i77 for servos and encoders
adding additional io using the serial expansion port , if you need help sorting it just shout

do you have any of the manuals for the servos etc ,

i'd go with a resonably up to date pc with a dual core , mid range 2.2 gig proc , and 4gig on memory will do just fine , you dont need fast or indeed high end boards for this job
perhaps add a touch screen later etc



Dave
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06 Oct 2014 17:11 #51815 by emcPT
If it is a battery problem, replace the battery's.
Go to the retrofit if your repair cost is higher than $5000 USD, in other case, stay with the actual controller as it is tuned to your machine.
Retrofitting it can be easy, but ending in a full working solution, without errors is another story.

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06 Oct 2014 17:17 #51816 by Enhanced
id prefer to do a retro on the machine, so I can use touch probes, tool setters etc etc, and can load files bigger than 500kb.

I can't find anywhere here locally to even have a look at getting the machine running in its current state

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06 Oct 2014 17:21 #51817 by Enhanced

Welcome Brad,
it should not be as bad as you think to convert , i'd go with mesa using the 5i25 pci express card for the pc and the addon 7i77 for servos and encoders
adding additional io using the serial expansion port , if you need help sorting it just shout

do you have any of the manuals for the servos etc ,

i'd go with a resonably up to date pc with a dual core , mid range 2.2 gig proc , and 4gig on memory will do just fine , you dont need fast or indeed high end boards for this job
perhaps add a touch screen later etc



Dave


Thanks Dave,

I found on the net, detailed information on the servo drivers and motors, can I post them up to see what u guys think, if they'll work properly, there is another guy who retrofitted his cincinatti but was using his original z axis servo and driver, and had that all working

As for vga card anything spectacular required, also what ports do I need on the motherboard.

Thanks in advance Dave

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06 Oct 2014 17:38 #51818 by Enhanced
The servo motors are 115's

www.driveka.ru/upload/iblock/a31/dutymax%20emsp%20brochure.pdf

And the servo drivers are

X and y axis maxax 100
Z axis is maxax 200

mediaserver.voxtechnologies.com/FileCach...heet1-1332340537.pdf

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06 Oct 2014 19:22 - 06 Oct 2014 19:23 #51820 by emcPT

id prefer to do a retro on the machine, so I can use touch probes, tool setters etc etc, and can load files bigger than 500kb.

I can't find anywhere here locally to even have a look at getting the machine running in its current state


Ok, the machine is yours, I just gave you my opinion.
I use linuxcnc everyday, and I retro fited several machines. Maintaining the original controller is in most cases still the best option, that sounds your case, from your first post (it seams that the controller is ok).
Your original controller is probably able to use all that you want to use with linuxcnc, and if cannot have files of 500Kb, maybe it also can deep feed those files, despite the fact that from my experience, a file with 500Kb is the result of a poor generator.

Your avatar is not Andy's avatar?
Last edit: 06 Oct 2014 19:23 by emcPT. Reason: avatar
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06 Oct 2014 19:42 #51821 by andypugh

mediaserver.voxtechnologies.com/FileCach...heet1-1332340537.pdf


Nice manuals. The sections on re-phasing resolvers and identifying motor phases are really helpful, but you shouldn't need them.

It looks like a really straightforward +/-10V velocity control amp. The motors have resolvers (which I am a real fan of) but with emulated quadrature + index output from the drive for the controller.

I think you should be looking at the Mesa 5i25 / 7i77 combination kit,
store.mesanet.com/index.php?route=produc...83_84&product_id=214
or possibly the Pico PPMC
pico-systems.com/PPMC.html
New to LinuxCNC is
www.generalmechatronics.com/en/linuxcnc but I don't know anything about that hardware.

Other controllers exist, but those have good LinuxCNC integration and suport on this forum.
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06 Oct 2014 20:00 #51822 by emcPT
Your avatar is not Andy's avatar?[/quote]

I guess not

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06 Oct 2014 20:32 #51824 by Enhanced
No it's not emcPT, although I see Andy is another nut case, as we get called.

It's hard to get any information on these machines, and no one here in Australia, wants to even look at it, I think that's why the original owner sold it on.

Andy, do I need to use an encoder or do I use the original resolvers, will I be able to get the tool changer working do u think.

How hard will it be wire the machine up, is there anyway I can get a wiring diagram from that I will. Reed to wire everything up, my understanding if I'm to retrofit the machine is the following.

New pc, as mentioned earlier
5i25 & 7i77 as a combo
Vfd 5.5kw 3 phase to control spindle motor
Can I use the original servo motors and controllers, will they work and work correctly with the mesa boards
And what do I need to get the tool changer operational.
Do I need to install encoders or can I wore the resolvers back to the servo drivers, like they are already in the machine

They're is also another attachment for the 7i77 for reduce noise is this suggested.

Regards Brad

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