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Thread: Tapping Stand or Hand Tapper

  1. #1
    jjr2001's Avatar
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    Tapping Stand or Hand Tapper

    Inspiration for this one is from Projects In Metal book 3. It was not meant to be an exact duplicate
    but rather a build using materials that I have on hand.

    The tapper includes two tapping spindles at present and more could follow. Either spindle can be driven
    by the tommy bar or the knurled aluminum knob.

    The knurled knobs were made from round bar stock and some flat head screws I had on hand.
    The cotters are made with 3/8 aluminum and differ from the method used in Projects in Metal.
    Cotter details are here:
    Machine a Cotter to lock a sliding part to a shaft

    In addition to the two spindles for tapping there is a hole locator also. It should work for most
    material thicknesses with the two ends. If not then I will just make another.

    The Post is 14" long 3/4 inch in diameter drill rod. One groove helps retain it in the column support with
    the addition of two locking knobs.

    The Rails are 5/8" drill rod by 9 1/4" long.

    Spindles are 1/2" diameter drill rod and vary in length.

    I still need to wind a new spring for the spindles, the one from stock is not strong enough.

    The base plate is 6 1/8" x 9" and 5/8 inch thick aluminum plate. The only steel parts are the parts from drill rod.

    Drilling 72 holes can be fun if you have a power tapper. Check out this thread for an inexpensive power tapping system.
    Tapmatic power tapper for 10 bucks. Not quite but close.

    Cheers, JR
    Attached Thumbnails Attached Thumbnails Tapping Stand or Hand Tapper-img_2403.jpg   Tapping Stand or Hand Tapper-img_2402.jpg   Tapping Stand or Hand Tapper-img_2401.jpg   Tapping Stand or Hand Tapper-img_2404.jpg   Tapping Stand or Hand Tapper-img_2398.jpg  

    Tapping Stand or Hand Tapper-img_2399.jpg  

  2. The Following 13 Users Say Thank You to jjr2001 For This Useful Post:

    Harvey Melvin Richards (02-19-2019), high-side (02-19-2019), johnsmachines (02-24-2019), Jon (02-18-2019), Metallurg33 (02-18-2019), old_toolmaker (02-18-2019), Paul Jones (02-19-2019), rossbotics (02-18-2019), Scotsman Hosie (02-19-2019), Seedtick (02-18-2019), Shanty (02-18-2019), that_other_guy (02-18-2019), Tule (02-19-2019)

  3. #2
    rossbotics rossbotics's Avatar
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    Nice clean looking job JR.
    Nice work as usual

    Doug
    Comments are always welcome
    Doug

    Subscribe to my you tube channel

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    Tool Plans for Sale by rossbotics






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    jjr2001 (02-24-2019)

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    old_toolmaker's Avatar
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    jjr2001,

    That is one very nicely made and versatile piece of tooling. Also great looking knurling job!
    Dick


    Links to some of my plans:

    http://www.homemadetools.net/forum/f...6068#post65876 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

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    jjr2001 (02-24-2019)

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    Wow. That sure is purdy......

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    jjr2001 (02-24-2019)

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    Thanks guys for all the nice comments. It is "purdy" and I hope it works as good as it looks!

    Cheers, JR

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    Great looking tapper! I do have one question that may be related to my inexperience. What is the "jam" plate on the vertical adjustment screw for?
    Dave

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    jjr2001 (02-19-2019)

  12. #7
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    Hi Dave and thanks for you comments. The plate in addition with the knurled knob are the locking/unlocking
    mechanism for the two "cotters" that lock the horizontal rod assembly to the vertical post. You can get a better idea
    of the system in this post:Machine a Cotter to lock a sliding part to a shaft

    You can see the cotters have threads on both ends. The front threads were removed after the 3/4" diameter
    hole was drilled thru both of them. The forward threads were only needed to get the cotters drilled. The yoke or
    jam plate will pull the cotters tight when the knurled knob is tightened.

    Cheers, JR
    Back to the shop.

  13. #8
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    Thanks jjr2001! We've added your Tapping Stand to our Tapping and Threading category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:




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    jjr2001 (02-24-2019)

  15. #9

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    wizard69's Tools
    wow - too pretty to use. Seriously it would likely remain on the shelf simply for fear of damaging the fine workmanship in my shop.

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    jjr2001 (02-24-2019)

  17. #10
    jjr2001's Avatar
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    Thanks wizard69, Nope, I will use it. Sometimes it will be weeks or even months before I use some of my shop made tools.
    However, I use them all eventually, try not to mess them up and if they get scratched, Oh Well!

    Can never have too many tools in the Shop!

    Cheers, JR


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