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  1. #1
    Join Date
    Oct 2012
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    0

    Help reviving mini-lathe

    I have a mini-lathe that is in pretty poor condition:


    What would you do to revive this thing and get it operational again. Like most people these days I have a very tight budget and need to keep costs to a minimum. I'm not planning on doing any super precise work with it right now, just some parts for a motorcycle project I'm working on. I had to move quickly about a year ago and this thing sat in the back of a crappy garage for a year. Am I going to have to replace all the rust parts or do you think I can salvage anything?

    I'd appreciate any advice or suggestions. Thank you.

  2. #2
    Join Date
    Oct 2012
    Posts
    0
    Ok, maybe this is the wrong place to ask this question. How about another forum? Can anyone recommend another forum where I may get some help?

  3. #3
    Join Date
    Sep 2012
    Posts
    1543
    It's all fine, hit it with WD-40 and metal (maroon)scotchbrite.

    Probably was never polished and deburred when it was made, once clean make as many surfaces as you can flat, by using some known flat surface and 320-600-1200 grit wet/dry sand paper, then adjust and fit everything, I think it will be better than new.

  4. #4
    Join Date
    Oct 2012
    Posts
    0
    Quote Originally Posted by BAMCNC.COM View Post
    It's all fine, hit it with WD-40 and metal (maroon)scotchbrite.

    Probably was never polished and deburred when it was made, once clean make as many surfaces as you can flat, by using some known flat surface and 320-600-1200 grit wet/dry sand paper, then adjust and fit everything, I think it will be better than new.
    Thanks for the response. I'll give that a shot.

  5. #5
    Join Date
    Dec 2003
    Posts
    24260
    Also look for Naval Jelly.
    Usually no abrasive polishing is required.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  6. #6
    Join Date
    Sep 2012
    Posts
    1543
    I disagree, these are known for not being square and smooth.

  7. #7
    Join Date
    Dec 2003
    Posts
    24260
    You could always dissolve the rust with the Naval Jelly first and then polish them up smooth afterward?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  8. #8
    Join Date
    Sep 2012
    Posts
    1543
    Oh, I see what your saying, ill have to look into that stuff.

  9. #9
    Join Date
    Mar 2004
    Posts
    1306
    That rust is pretty irrelevant. Check out this guys lathe...
    South Bend lathe in Hungary


    A razor blade is also good for scrapping off surface rust.

    There is not that much rust on the sliding surfaces. Most of it is only cosmetic. As others have said, these chinese machines are not that great out of the box. If you blue up the sliding surfaces, you will probably find their is little contact, and they should be scrapped into alignment.
    Regards,
    Mark

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