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Thread: Dual Lathe Tool Height Setting Aid

  1. #1
    natie123's Avatar
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    Dual Lathe Tool Height Setting Aid

    Another lathe tool height setting aid. Not very elegant, but simple and quick to make. The base was cut off a piece of 30mm bms round bar, drilled and tapped for M6. The two tabs are 22 mm lengths of 20 x 5mm bms flat bar, each drilled through 6mm near one end. The gauge was assembled with 6mm threaded rod, nuts and washers as per Photo 1. The assembly is adjusted until the junction of the two pieces of flat bar is exactly at the lathe center height from whatever datum you choose (mine rests on the lathe saddle).
    The bottom of the top tab is used to set the height of tools held in the front tool post (Photo 2) and the top of the bottom tab is used to set tools mounted upside down in the rear tool post (Photo 3).
    Attachment 24385 Attachment 24386 Attachment 24387
    Attached Thumbnails Attached Thumbnails Dual Lathe Tool Height Setting Aid-hg1.jpg   Dual Lathe Tool Height Setting Aid-hg2.jpg   Dual Lathe Tool Height Setting Aid-hg3.jpg  
    Last edited by natie123; 06-17-2018 at 10:31 AM. Reason: Update photos

  2. The Following 11 Users Say Thank You to natie123 For This Useful Post:

    LMMasterMariner (06-19-2018), NortonDommi (06-16-2018), olderdan (10-17-2018), Paul Jones (06-20-2018), philipUsesWood&Brass (06-17-2018), PJs (06-16-2018), rossbotics (06-19-2018), Seedtick (06-17-2018), sossol (06-16-2018), Tonyg (10-17-2018), Whiteboardwarriors2 (06-16-2018)

  3. #2
    Content Editor DIYer's Avatar
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    Thanks natie123! We've added your Lathe Tool Height Setter to our Measuring and Marking category,
    as well as to your builder page: natie123's Homemade Tools. Your receipt:




  4. #3
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    Inelegant? Not really, a better term is 'functional'.
    Especially when compared to fancy boogers sold by all the supply houses, attracting the gotta-have-it crowd as a conversation piece. This one-ups most center line gauges by representing both upper and lower planes.
    I'll re-recommend finding centerline accurately, procedure that works if decent flat surfaces occupy the carriage.
    Chuck and dial in or turn round stock of stout diameter, measure resulting size, divide that in half and record.
    With height gauge, or depth mic and 1-2-3 blocks, 4-way caliper; find height from flat datum(s).
    Subtract the half diameter from height just measured.
    Centerline found!
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    PJs (10-17-2018)

  6. #4
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    Thank you for this useful tip Toolmaker 51. In the past I relied on the dimensions provided by the lathe manufacturer, but I am sure your method is going to be more accurate as my lathe is 42 years old.


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    Last edited by natie123; 10-17-2018 at 07:01 AM.

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