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Author Topic: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion  (Read 160861 times)

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Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #210 on: April 21, 2015, 02:47:16 AM »
Hey JH, you sure do a nice job of these retro fits, good work finding work to keep these babies running.
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #211 on: February 09, 2016, 11:24:35 AM »
Hi JH
I just bought a fadal and am going to convert it. I read through your build and saw you are using 750W AC servos. Ever wised you had gone with bigger ones. Great job on the two builds.
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #212 on: February 13, 2016, 03:44:45 PM »
Hi JH
I just bought a fadal and am going to convert it. I read through your build and saw you are using 750W AC servos. Ever wised you had gone with bigger ones. Great job on the two builds.

The 750W with a 2 to 1 gear ratio on the pulleys is more power than you will need.   I have snapped solid 1/2 carbide end mills off with them
Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« Reply #213 on: March 13, 2016, 12:53:33 PM »
I've been following this thread for a few years in the hopes that I would find an Interact 412 near me (central Indiana).  One popped up on eBay last week (finally) and I got it for a very, very reasonable cost.  $600!  It was a running machine until recently.  The owner just got tired of replacing encoders and decided to part with it.  It is in very good condition, just dirty.  The only thing that appears amiss is the right saddle needs some turcite replaced but can get by with it as-is.  Needs a good pressure washing and repainting of the sheet metal components.  I trailered it home Friday and now I have to figure out how to get the dang thing off the trailer.  Gonna have to rent a big fork truck.

The plan is to gut the Heidenhain control, keep the Fanuc AC spindle drive, install 1kw AC servos, and integrate everything else with SSRs.  I don't have three phase power so I am going to acquire a 10hp Phase Perfect.  Right now my other Bridgeport running on Mach with a VFD runs perfectly on single phase, so this isn't my first rodeo but have other machines running on a rotary phase converter and I would really like to get rid of that dinosaur.

The door is kludged together at the top with a ball bearing drawer slide.  Am investigating what was there originally.

Machine, right after loading it:
https://lh3.googleusercontent.com/V582N8ihyvDR2Da2jPqpd5wF091t-2t_Y7yYrLX580rExrqTci5eC-RYnpkZvENgO3F22n5X2GeLKw=w1030-h772-no

Servos/drives I plan on using:
http://www.ebay.com/itm/NEW-AC-servo-motor-drive-Kit-1ph-220V-80mm-4NM-1kW-2500RPM-4-4A-3M-Cable-/121691953583?hash=item1c5567d9af:g:D04AAOSwLVZVklS6

Thanks,
Bob
« Last Edit: March 13, 2016, 01:04:19 PM by rocketbob »