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Thread: Layout of Arms for 4 Arm Bowl Steady?

  1. #1
    Join Date
    Jun 2012
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    Laurinburg NC
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    316

    Layout of Arms for 4 Arm Bowl Steady?

    I am making a 4 arm bowl steady. I just am making sure I am thinking right. Correct me if I need to adjust this.

    The arms on the 4 arm steady should be 90 deg. apart. Starting with the bowl steady in place on lathe from dead center ,between the ways of the lathe,at bottom go 45 deg to the first arm, mark, and go 90 deg to 2nd arm, mark, then 90 deg to 3rd arm ,mark and then 90 deg to the 4th arm. I know this is elementary but I was wanting to make sure but I started on them...Thanks !!!

  2. #2
    Join Date
    Aug 2008
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    Reno, Nv
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    3,632
    Until someone shows up that knows more, which in this case is 99.999% of the membership, that sounds and looks correct. Checked a couple on Google and thats what they looked like.
    Your Respiratory Therapist wears Combat boots

  3. #3
    Join Date
    May 2011
    Location
    Frisco TX
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    42
    That sounds right to me. Here is the acid test....if you are using a hollowing rig with a laser, can the laser pass between the top 2 arms? Remember the laser goes not really go straight in but is usually off to one side as the walls get thinner.

    Here is one I made for my Jet 1442 which I sold last weekend with this bowl steady. My top 2 arms don't look to be a perfect 90 degrees (and I'm not an engineer so didn't care ) but this work for several years.

    Click image for larger version. 

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    Last edited by Chip Sutherland; 03-09-2013 at 04:04 PM.

  4. #4
    Join Date
    Oct 2006
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    ABQ NM
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    The positions really aren't very critical. As Chip said, it's desirable for the laser to be able to clear the arms (if you're running a laser), but other than that, they can be pretty much anywhere. Case in point: I use two of these, and their placement varies...

    http://www.oneway.ca/steadyrests/bowl_steady.htm
    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

  5. #5
    Join Date
    Dec 2007
    Location
    Tellico Plains, Tennessee
    Posts
    4,351
    Quote Originally Posted by Chip Sutherland View Post
    That sounds right to me. Here is the acid test....if you are using a hollowing rig with a laser, can the laser pass between the top 2 arms? Remember the laser goes not really go straight in but is usually off to one side as the walls get thinner.

    Here is one I made for my Jet 1442 which I sold last weekend with this bowl steady. My top 2 arms don't look to be a perfect 90 degrees (and I'm not an engineer so didn't care ) but this work for several years.

    Chip,
    I saved your picture of your steady rest... I need to put one together for my lathe (1442) also... think I'll try to copy yours....
    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.

  6. #6
    Join Date
    Feb 2011
    Location
    Ladner BC
    Posts
    42
    Here's a photo of how I got around the problem of the arm or wheel blocking my laser.
    It does as well make it easy to install without removing the tail stock.
    If you want more info you can check out my Wordpress Blog.
    http://woodbowlsandthings.wordpress.com
    Sorry it's not the top post but you can quickly scroll down and find it.
    Click image for larger version. 

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