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Thread: BALANCED LATHE DOG

  1. #1
    Supporting Member natie123's Avatar
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    natie123's Tools

    BALANCED LATHE DOG

    I needed a lathe dog to drive a between-centers boring bar. Not wanting to fiddle with balance weights, I made this balanced version that has two drive pins (Photos 1 - 3).
    The bars are 12x12 mm square bar with a “V” cut in the middle to suit the diameter of the stock to be driven by the dog. Mine should work for diameters of 12 – 50 mm. A 10 mm round bar drive pin was welded on near the end of each bar and the two sections are held together with M6 hex-socket bolts (Photo 4). The design can be scaled up or down as required. In use the lathe dog and boring bar assembly runs smoothly with no discernable vibration.
    Credit for the basic idea to L.H. Sparey (The Amateur’s Lathe), ISHIMURA http://www.homemadetools.net/homemade-lathe-dog-3 , Smitty http://www.homemadetools.net/homemade-lathe-dogs-2 and many others on the Internet.
    BALANCED LATHE DOG-ld01.jpg BALANCED LATHE DOG-ld02.jpg BALANCED LATHE DOG-ld03.jpg BALANCED LATHE DOG-ld04.jpg

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  2. The Following 18 Users Say Thank You to natie123 For This Useful Post:

    bruce.desertrat (Sep 10, 2018), Bullet500 (Sep 26, 2020), Canyonman44 (Sep 26, 2020), Captainleeward (Feb 3, 2019), David Johnson (Sep 11, 2018), drivermark (Sep 12, 2018), HobieDave (Mar 18, 2020), Jon (Sep 10, 2018), marksbug (Dec 27, 2018), metric_taper (Sep 10, 2018), NortonDommi (Jun 18, 2021), Paul Jones (Sep 11, 2018), PJs (Sep 12, 2018), rossbotics (Sep 10, 2018), Seedtick (Sep 10, 2018), Stevohdee (Sep 10, 2018), Toolmaker51 (Sep 10, 2018), Tule (Dec 28, 2018)

  3. #2
    Supporting Member Christophe Mineau's Avatar
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    Nice! Simple and nice, and seems quite scalable

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  4. #3
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    Stevohdee's Tools
    Brilliant!

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    Supporting Member old_toolmaker's Avatar
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    natie123,

    Another one of those "Why didn't I think of that?". A very cool and nifty idea. Thanks for sharing!
    Dick


    Links to some of my plans:

    https://www.homemadetools.net/forum/...965#post105972 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  6. #5
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    Thanks natie123! We've added your Balanced Lathe Dog to our Lathe Accessories category,
    as well as to your builder page: natie123's Homemade Tools. Your receipt:






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  7. The Following User Says Thank You to DIYer For This Useful Post:

    David Johnson (Dec 28, 2018)

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