Boxford 250F options?

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06 Feb 2018 23:13 #105513 by Ross77
Boxford 250F options? was created by Ross77
Good evening
I have just bought a Boxford 250 which is running on a Fanuc OT system and looking for options.


Ultimatly I would like to have the touch screen and run the macros for quick turing etc. and have spindle indexing with live tooling so a retro fit would be the best long term option but I really need to get this up and running asap and then convert in a few months.

option 1
Is it possible to connect to the Fanuc system so I can use Lcnc to control it?

Option 2
Reuse the Fanuc motors with a Granite devices argon and Lcnc

Option 3
Complete refit with new AC servos and drives?

Thanks in advance
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07 Feb 2018 01:54 #105514 by tommylight

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07 Feb 2018 12:47 #105526 by Ross77
Replied by Ross77 on topic Boxford 250F options?
Thanks, I did see that one but his is the B so already on 240V and steppers which is a much easier retro fit. I will need the tool changer data tho so thats good.

It was more the possible integration with Fanuc or to reuse some of the fanuc parts.

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08 Feb 2018 18:16 #105596 by Einar
Replied by Einar on topic Boxford 250F options?
Yes, it's on 240V but the VFD is run through 3 beefy transformers. So it seems it is originally a 400V machine.
I believe Jon Elson make some hardware solutions for running Fanuc motors.
Bottom of this list: pico-systems.com/motion.html

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08 Feb 2018 22:39 #105611 by Ross77
Replied by Ross77 on topic Boxford 250F options?
Ah. I thought the new ones where all 240v. So have you got the original 415v 3 phase input inverter running on 240v?

It would be good to pick your brains on the conversion Although I don't have the slotted disc on the ball screws and the spindle encoder is a belt driven unit. did you have the stepper drive for the tool station? There seems to be a lot of wiring in the back panel just for that.

Given the Fanuc system is 30 years old I'm leaning away from reusing it.

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26 Feb 2018 20:32 #106559 by andypugh
Replied by andypugh on topic Boxford 250F options?

Ross77 wrote: option 1
Is it possible to connect to the Fanuc system so I can use Lcnc to control it?


No, that would be two motion controllers, who would be in charge?


Option 2
Reuse the Fanuc motors with a Granite devices argon and Lcnc

You missed out option 1.5, keep the Fanuc drives and motors but control them with LinuxCNC.


Option 3
Complete refit with new AC servos and drives?

Seems like a waste of some good motors and drive hardware.

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27 Feb 2018 21:30 #106668 by Ross77
Replied by Ross77 on topic Boxford 250F options?
Thanks Andy
With option 1.5 i wouldn't I still need 415v 3 phase supply to run though? can that be done then? Most people seem to think that it is a nightmare to do. I'd be interested if it can be done.

the Fanuc system is nearly 30 years old though, 1990.

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27 Feb 2018 21:52 #106673 by andypugh
Replied by andypugh on topic Boxford 250F options?

Ross77 wrote: Thanks Andy
With option 1.5 i wouldn't I still need 415v 3 phase supply to run though?.


Possibly, but the drives might well be 240V input, or might work perfectly OK on 240V.

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27 Feb 2018 22:08 #106676 by Ross77
Replied by Ross77 on topic Boxford 250F options?

Possibly, but the drives might well be 240V input, or might work perfectly OK on 240V.


How can I find out? Is it just a case of wiring up one of the phases to 240v

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27 Feb 2018 22:39 #106678 by andypugh
Replied by andypugh on topic Boxford 250F options?
Do you have any manuals?

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