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Thread: Hollowing Deeper

  1. #1
    Join Date
    Jul 2008
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    Palm Springs, Ca
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    Hollowing Deeper

    Decided to try to see how deep I can hollow with the tools I have today. The turning in the picture below is 12" long and 6 1/2 wide.

    I mounted a pine log and turned it round, created the tennon, reversed it and finished creating the form, mounted my steady rest and using my index tool i hogged out as much as I could but at 10" plus off the rest things get a bit shakey at least for me so I changed over to the hollowing rig to finish the hollowing.

    However, even with the tool rest adjusted up to compenstate for the drift of the tool downward that far off the rest..... it was slow going and probably not the safest thing but i was able to get it less than 1/4 thickness.

    Toward the end of the hollowing when i stopped for a sec to clear chips i noticed that it had cracked bad .....being that far off the rest, using Pine for the project and the cutting probably caused the crack as i got thinner on the walls.......... so i scrapped it out. I think if i would have been turning it out of stronger wood like the mesquite I have it probably would have survived....................ahhhhh well ....some days are good turning days and others not so good but still learning the ropes to....

    Dan
    Attached Thumbnails Attached Thumbnails Steady-1.jpg   Steady-2.jpg  
    Last edited by Dan Mosley; 03-22-2010 at 04:50 AM.
    First you have to learn the rules - Beginner
    Then you have to learn advanced rules - Professional
    Then you disregard the rules - This takes you to the master level................

  2. #2
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    Jul 2008
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    Palm Springs, Ca
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    Hollowing Deeper

    duplicate
    Last edited by larry merlau; 03-23-2010 at 11:01 AM.
    First you have to learn the rules - Beginner
    Then you have to learn advanced rules - Professional
    Then you disregard the rules - This takes you to the master level................

  3. #3
    Join Date
    Dec 2007
    Location
    Tellico Plains, Tennessee
    Posts
    4,353
    My problem with doing anything like this is I don't have a proper steady rest yet... I know after you get out a ways from the headstock, you start to get vibration that can cause lots of problems.... I have plans to build one, but haven't gotten to it yet...

    I like the one you have, but likely my pocket is too shallow for that one...hence a home made one.
    Chuck
    Tellico Plains, TN
    https://www.etsy.com/shop/TellicoTurnings
    My parents taught me to respect my elders, but it's getting harder and harder to find any.
    If you go looking for trouble, it will usually find you.

  4. #4
    Join Date
    Nov 2006
    Location
    Mountain Home, Arkansas
    Posts
    11,833
    Be sure to get a proper rest when you do make your investment.
    I have one of the Grizzly's http://grizzly.com/products/Steady-R...od-Lathe/H5569
    and find it to be pretty wuthless. Opening very small and wheels way too small. I believe I would like much larger wheels.
    Although part of my problems using this may have been self-generated. My woodturning club had a very good demo Saturday on making long stemmed goblets. The demo turner emphasized smoothing the area the steady rest whees will ride on. He skewed smooth then even sanded. This prevents any unevenness or bumps from shaking things up. Good advice.
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  5. #5
    Join Date
    Nov 2006
    Location
    Mountain Home, Arkansas
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    11,833
    You have this posted twice.
    Is that a whipping or shooting offense?
    "Folks is funny critters."

    Think for yourselves and let others enjoy the privilege to do so, too. ~Voltaire

  6. #6
    Join Date
    Jul 2008
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    Palm Springs, Ca
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    Walllllla..............best I can do
    First you have to learn the rules - Beginner
    Then you have to learn advanced rules - Professional
    Then you disregard the rules - This takes you to the master level................

  7. #7
    Join Date
    Oct 2006
    Location
    ABQ NM
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    30,020
    Bummer that it cracked. It was looking promising.

    I think the deepest I've gotten was about 11 1/2". You're right...by the time you get into that range, things start getting a bit chattery and light cuts are vital. The piece I did was an open-mouthed vase, but I still used the hollowing system since my hands can't hack the torque that long. For the same reason, I use the hollowing rig from the start (instead of starting with the Indexer) on pretty much any hollow form. The Indexer is probably a bit faster, huh?
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  8. #8
    Join Date
    Dec 2006
    Location
    Goodland, Kansas
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    I have went about 11" to 12" but it get dicey. I can't hack the torque on my old hands and arms anymore. When doing big HF's I use the rig all the way and then I can turn the next day.
    Bernie W.

    Retirement: Thats when you return from work one day
    and say, Hi, Honey, Im home forever.

    To succeed in life, you need three things: a wishbone, a backbone and a funnybone.

  9. #9
    Join Date
    Jul 2008
    Location
    Palm Springs, Ca
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    Yep your right - the indexer with 3/16 bit allows me to hollow probably faster and hog out easier then i switch to the rig.

    Again right - on this last vase my shoulder was so sore......but usually not that bad on other less large vessels.........The rotational force and the tool drift (even with the rest raised) make this not a safe thing to do really. I think a larger boring bar on the rig may help with stability - that would also mean a larger entry hole to though......not sure but it would work better I would think

    I find that the 3/16 is the best tool all around for hollowing - just my opinion.
    First you have to learn the rules - Beginner
    Then you have to learn advanced rules - Professional
    Then you disregard the rules - This takes you to the master level................

  10. #10
    Hi Dan- i dont belive in useing rigs- i can hollow out to 12 without an internal rest or 14/15" with. A couple of points looking at your pictures is- a longer tool handle would help control the cut(my handles are 28" long) and instead of usinga a steady why not leave some extra wood for support then once the hollowing is done turn the extra wood away. This is how i do it and i find it helps to stop vibration better than a steady can.

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