SBL Magnaturn Retrofit


Page 1 of 5 1234 ... LastLast
Results 1 to 20 of 99

Thread: SBL Magnaturn Retrofit

  1. #1
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default SBL Magnaturn Retrofit

    So here is my next project. It is a South Bend Lathe. PC based Magnaturn from the early to mid 80s. And probably had not been cleaned since that time also. Dug out over 15 gallons of crud from bottom of machine.
    Machine ran from two floppy drives. When i got it from owner it was not working. Turned out to be one of the floppies was corrupted.Got it running....but what a pig on power. It has a 15HP 3 phase motor that ran a bunch of hydraulic cylinders and motors.
    The system was very impressive tho. As the movement of axis was done with hydraulic cylinders and had scales for closing the loop. I did position tests of .0005" with no problems. But, machine just took to many amps to run. Took about 50amps to get it started!
    Here is some pics of bringing it home and before it got a LONG over do bath.

    Troy

    Similar Threads:
    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-cleaned-new-home-jpg   SBL Magnaturn Retrofit-trailer-jpg   SBL Magnaturn Retrofit-img_0001-jpg   SBL Magnaturn Retrofit-img_0002-jpg  

    SBL Magnaturn Retrofit-img_0003-jpg   SBL Magnaturn Retrofit-img_0004-jpg   SBL Magnaturn Retrofit-img_0005-jpg  
    Last edited by Need TECH Help!; 06-24-2018 at 12:35 PM.
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  2. #2
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    4043
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Hi Troy,

    Wow. I've heard that hydraulic servos can be very accurate. I believe it was employed on some early semiconductor manufacturing equipment.

    Looking forward to see what you do with it. What's the game plan?

    Regards

    Regards
    TK http://dynomotion.com


  3. #3
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Hay Tom,
    To get it up and running with just a toolpost. And later will tackle the turret.
    Lathe will be ballscrew with 750W AC servos directly coupled. Spindle hydraulic motor is replaced with a 5 HP Marathon Black Max motor driven by a TECO-Westinghouse A510 VFD.
    And of course... Dynomotion boards. KFLOP/Kanalog/Konnect combo.
    Got some more pics coming...

    www.tsjobshop.com, www.homecncstuff.elementfx.com


  4. #4
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Here is some more pics of the hydraulic mess before removal.

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-003-jpg   SBL Magnaturn Retrofit-001-jpg   SBL Magnaturn Retrofit-002-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  5. #5
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Out with the old.....

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-img_0001-jpg   SBL Magnaturn Retrofit-img_0002-jpg   SBL Magnaturn Retrofit-img_0003-jpg   SBL Magnaturn Retrofit-img_0006-jpg  

    SBL Magnaturn Retrofit-img_0007-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  6. #6
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Out with the old electronics... Its something to see how tech has changed the graphics card is about the size of a mini atx motherboard.

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-img_0003-jpg   SBL Magnaturn Retrofit-img_0002-jpg   SBL Magnaturn Retrofit-img_0001-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  7. #7
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    4043
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    So what are you keeping? The feet?

    Regards
    TK http://dynomotion.com


  8. #8
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Those and maybe a fan.

    www.tsjobshop.com, www.homecncstuff.elementfx.com


  9. #9
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Had to replace the turcite on the saddle(Z axis). It was thin and peeling off. Glued on some new and milled it down with a fly cutter. Stuff machines so easy. Will be getting it hand scrapped also.
    Troy

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-millingnewturcite-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  10. #10
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Now got ballscrews,servos and spindle motor mounted. This was a tight fit on X axis ballscrew as there was not much room at all for a 1" screw and nut. And got the way lube flow figured out. Now onto mounting some electrical components.
    Troy

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-zaxisballnutmount-jpg   SBL Magnaturn Retrofit-zaxisscrew1-jpg   SBL Magnaturn Retrofit-xaxisscrew2-jpg   SBL Magnaturn Retrofit-xaxisscrew1-jpg  

    SBL Magnaturn Retrofit-zaxisscrew2-jpg   SBL Magnaturn Retrofit-xaxismotor-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  11. #11
    Member
    Join Date
    May 2012
    Location
    canada
    Posts
    537
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    nice job!



  12. #12
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Needed some more room for electrical stuff. So made a custom electrical box.

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-emptyhole-jpg   SBL Magnaturn Retrofit-box1-jpg   SBL Magnaturn Retrofit-box2-jpg   SBL Magnaturn Retrofit-box3-jpg  

    SBL Magnaturn Retrofit-box4-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  13. #13
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Got some electrical components mounted....

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-topbox1-jpg   SBL Magnaturn Retrofit-topbox2-jpg   SBL Magnaturn Retrofit-topbox3-jpg   SBL Magnaturn Retrofit-custommiddlebox1-jpg  

    SBL Magnaturn Retrofit-bottombox1-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


  14. #14
    Member TomKerekes's Avatar
    Join Date
    May 2006
    Location
    USA
    Posts
    4043
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Hi Troy,

    I see you kept the fan. Whats the plan for the door to the 3.5inch floppies to be used for?

    Help with identifiyng Southbend Magnaturn-southbend-bridgeport-cnc-lathe-004-jpg

    Regards
    TK http://dynomotion.com


  15. #15
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Hay Tom,
    Boy.... wish my lathe was as clean as the one in your picture The door will eventually have USB ports.

    www.tsjobshop.com, www.homecncstuff.elementfx.com


  16. #16
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    .

    www.tsjobshop.com, www.homecncstuff.elementfx.com


  17. #17
    Member
    Join Date
    May 2012
    Location
    canada
    Posts
    537
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Nice work on the electrical enclosure. I like your welding bench, how its enclosed and storage underneath. Do you have a fume extractor or something up top? I bet it would work really well like that.



  18. #18
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Quote Originally Posted by mmurray70 View Post
    Nice work on the electrical enclosure. I like your welding bench, how its enclosed and storage underneath. Do you have a fume extractor or something up top? I bet it would work really well like that.
    Thanks.
    No, but there is a big exhaust fan in wall beside it that does the job very well. Now that you mention it i could easily duct to it and use a smaller fan for welding and such

    www.tsjobshop.com, www.homecncstuff.elementfx.com


  19. #19
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default Re: SBL Magnaturn Retrofit

    Here is a video of making the Zaxis Ballscrew nut for lathe. I used Fusion360 for the High Speed Toolpath code and using my Dynomotion retrofitted Hurco mill.


    www.tsjobshop.com, www.homecncstuff.elementfx.com


  20. #20
    Member Need TECH Help!'s Avatar
    Join Date
    Dec 2007
    Location
    United States
    Posts
    578
    Downloads
    0
    Uploads
    0

    Default

    Last but not least the Dynomotion boards are mounted.

    Attached Thumbnails Attached Thumbnails SBL Magnaturn Retrofit-boardsonrail-jpg  
    www.tsjobshop.com, www.homecncstuff.elementfx.com


Page 1 of 5 1234 ... LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

SBL Magnaturn Retrofit

SBL Magnaturn Retrofit