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Author Topic: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion  (Read 160786 times)

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Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #190 on: March 01, 2013, 10:56:16 AM »
hello , you have a realy nice project !

i want to build an atc , and can use a screenset like yours , where can i get it ?
thank you !
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #191 on: March 01, 2013, 11:06:25 AM »
hello , you have a realy nice project !

i want to build an atc , and can use a screenset like yours , where can i get it ?
thank you !

http://www.machsupport.com/forum/index.php/topic,13365.msg112543.html#msg112543
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #192 on: October 15, 2013, 04:56:35 PM »
I thought I would steal my own thread and let you know that we now have a 1988 BP412 that we are adding to the collection VMCs.   Already started on the teardown and hope to get it up and running fast...should be easy to do it a second time.

Let the fun begin !

JH
« Last Edit: October 15, 2013, 04:58:41 PM by JHChoppers »

Offline N4NV

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Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #193 on: October 15, 2013, 05:06:34 PM »
Where do you find such toys?  If I tried to bring home one of those my wife would make me sleep in the garage with it (but I would really like something with a tool changer).

Vince
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #194 on: October 18, 2013, 02:40:12 PM »
Been digging into the BP412, I have ALL the electronics pulled and have cleaned out the cabinets for the all the new stuff.
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #195 on: October 18, 2013, 02:44:13 PM »
The front control panel is now removed along with the XY and Z Servo Motors.  

Now the "rebuild" part begins (so we are 1/2 wave done right?)   Next step it to get the machine leveled and run the power, air lines and ethernet.

Offline cnc-it

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Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #196 on: October 30, 2013, 04:33:43 AM »
Hi JH

Was the Heidenhain broken...just thinking it would have been easier to keep it and run single phase servos with it..I have a heidenhain far better than Mach 3 it's a very stable industrial controller and all the info on writing the plc programms is free on the Heidenhain downloads sight!! Plus it would have had the backlash comp and pitch error already set for the machine..
Good thing about the Heidenhain as well is you can upgrade to the latest control or anything in between and the plc automatically updates itself with the newer reserved words and commands when the control is powered up.. If it's a TNC355 it will  be using 11 micro amp sinusoidal encoders as the 355 has 4 sinusoidal encoder inputs and one square wave for the spindle axis.

John.
« Last Edit: October 30, 2013, 04:51:10 AM by cnc-it »
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #197 on: October 30, 2013, 03:07:50 PM »
Hi JH

Was the Heidenhain broken...just thinking it would have been easier to keep it and run single phase servos with it..I have a heidenhain far better than Mach 3 it's a very stable industrial controller and all the info on writing the plc programms is free on the Heidenhain downloads sight!! Plus it would have had the backlash comp and pitch error already set for the machine..
Good thing about the Heidenhain as well is you can upgrade to the latest control or anything in between and the plc automatically updates itself with the newer reserved words and commands when the control is powered up.. If it's a TNC355 it will  be using 11 micro amp sinusoidal encoders as the 355 has 4 sinusoidal encoder inputs and one square wave for the spindle axis.

John.


I got the machine cheap as it was marked for "parts only not working".   The last owner indicated that it would no longer home and the parameters were lost.  I am not a big fan on using 25 year old electronics or trouble shooting them.   For me, it will be faster for me to gut the old and in this case "unknown" state of the electronics and replace them with AC Brushless digitial controls that I can fix and maintain.

You are right about Mach3, its not perfect but at least I know its limitation and how to work around them.  We run Mach3 on the 1987 BP412 5 days a week.

Offline cnc-it

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Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #198 on: October 30, 2013, 05:22:00 PM »
Well yes with two of these on Mach 3 you can swap programmes be tween each machine.
If its not homing it will be a sticky limit switch  probably on  the z  ...that's my guess anyway  :)
There is only 350 or so parameters on the tnc 355 and half of them are not used..you can run a modern drive in speed mode so it uses the encoder as a tacho, then use the old encoders that go directly back to the Heidenhain for position reference and have the drives set for the analogue command +/- 0 -10v from the Heidenhain.  If the encoders are coupled directly to the ball screws its much better for accuracy..the tnc 355 with modern drives will work better and be more solid than any Mach 3 set up but I'm an Heidenhain fan..each to their own  :)
Look forward to the build hope it works well!
John.
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #199 on: October 30, 2013, 05:25:46 PM »
Yeah, I was I knew more about Heidenhain and Fanuc both.  If I wasnt pressed on time I would like learn more about them....maybe in the next life :)