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Thread: Stuck spur centre

  1. #1
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    Feb 2012
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    Stuck spur centre

    I went to gently tap the spur centre out of my lathe headstock, and it won't budge. I have tried hitting the rod with a wooden mallet, and twisting with a wrench, and have squirted a little WD-40 on it. I cannot continue my learning process if I can't get that centre out! I may have to give up and do some flatwork until I figure this out.

    Help me, O Family Woodworkers; you're my only hope!
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  2. #2
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    Quote Originally Posted by Roger Tulk View Post
    I went to gently tap the spur centre out of my lathe headstock, and it won't budge. I have tried hitting the rod with a wooden mallet, and twisting with a wrench, and have squirted a little WD-40 on it. I cannot continue my learning process if I can't get that centre out! I may have to give up and do some flatwork until I figure this out.

    Help me, O Family Woodworkers; you're my only hope!
    You need a bigger hammer, Rog! Try a steel one, seriously.
    Mack C. in Brooklin ON
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  3. #3
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    You should have a knock-out tool. Run that through the headstock and smack the sucker.
    Your Respiratory Therapist wears Combat boots

  4. #4
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    Quote Originally Posted by Jim Burr View Post
    You should have a knock-out tool. Run that through the headstock and smack the sucker.
    I assumed he was using a knock-out tool!
    Mack C. in Brooklin ON
    It feels great to sell a pen,
    It feels even greater to give one to a friend!

    If your presence doesn't make an impact;
    Your absence won't make a difference!


    I am a proud supporter of
    "Pens for Canadian Peacekeepers"!

  5. #5
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    Thank you! I just needed reassurance that I could whack it really hard. I have a home made knockout tool, as the seller couldn't find the one that came with the lathe. I am also using the safety key from my drill press in it, because they couldn't find that, either.

    I will let you know...
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  6. #6
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    Dumb thing is OK now...

    I picked up my son's 6 lb. mallet that was lying around, and gave the knockout bar two whacks. The first whack shattered the nice wooden knob I had made for the knockout bar, the second sent the spur centre and the knockout bar flying the length of the lathe, and now I can get on with my work.

    Thanks again!
    Cheers,
    Roger


    The other member of Mensa, but not the NRA

    Everyone is a self-made person.

    "The thing about quotes on the internet is that you cannot confirm their veracity" -Abraham Lincoln

  7. #7
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    Glad you got it out!

    Use a green scrubby pad to clean the spur center off and the inside of the MT on the headstock, and I bet this won't happen again.

    Cheers!
    The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
    William Arthur Ward

  8. #8
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    Quote Originally Posted by Stuart Ablett View Post
    Glad you got it out!

    Use a green scrubby pad to clean the spur center off and the inside of the MT on the headstock, and I bet this won't happen again.

    Cheers!
    this is why I read threads , get all these little helpful hints from experienced woodworkers/turners
    Human Test Dummy

  9. #9
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    Quote Originally Posted by Stuart Ablett View Post
    Glad you got it out!

    Use a green scrubby pad to clean the spur center off and the inside of the MT on the headstock, and I bet this won't happen again.

    Cheers!
    I'll echo this. It's also important to ensure both the center and the inside of the MT on the spindle are good and clean before inserting the spur center into the spindle. The inside of my spindle got chewed up to the point where I had to use a reamer to clean up the galled metal, simply because I didn't make sure things were clean first.

    Also, don't put the spur center in the spindle, then attach the workpiece by whacking it with a mallet into the spur. This forces the spur center in too tightly, and can cause it to get stuck. Instead. drive the spur center into the workpiece off the lathe, then mount the spur and workpiece onto the lathe at the same time. Even if the spur doesn't stay "stuck" to the workpiece as you're mounting it all, the workpiece will have the indentations from the spur, and it'll be easy to match those up with the spur when you bring up the tailstock to hold everything in place.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
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  10. #10
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    http://www.woodturnerscatalog.com/p/122/3651/TaperMate-Morse-Taper-Cleaner

    I don't have one, but wished many times that I did have one!
    Mack C. in Brooklin ON
    It feels great to sell a pen,
    It feels even greater to give one to a friend!

    If your presence doesn't make an impact;
    Your absence won't make a difference!


    I am a proud supporter of
    "Pens for Canadian Peacekeepers"!

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