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  1. #1
    rossbotics rossbotics's Avatar
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    Hand Tapping Machine

    I built this little tapper for the sole purpose of tapping a hole at 90 deg. Everyone knows how easy it is to tap a hole by eye and be a little out of perpendicular, I don't do a lot of hand tapping but this will take the guess work out , Most of the holes I tap (about 90%) are drilled and tapped in the mill or lathe.

    I put a 0-3/8" Jacobs chuck on the spindle to accommodate taps up to 3/8" but I seriously doubt I tap anything larger than a #10, In fact I built it for smaller taps specifically, You can also put a countersink in the chuck and chamfer holes, you can put reamers in as well.

    There are 3 rows of .257" holes for inserting 1/4" dowel pins to rest the work against while tapping, There is a 7/16" hole in the center for chips to exit and tap clearance and two 1/4" counter bored holes for mounting purposes.

    Click here to purchase a set of these plans Tapping Machine

    Below are some photos

    Thanks for looking and happy machining

    Doug


    Hand Tapping Machine-100_0669.jpg

    Above photo shows all the parts machined and ready for assembly

    Hand Tapping Machine-100_0671.jpg

    Above photo shows the column attached to the base by means of a 1/2"-13 SHCS, The base is fabricated from a piece 1" X 5" X 9" 1018 CRS which after I precision ground, The column was made from a piece of 1" O.D. 303 stainless steel.

    Hand Tapping Machine-100_0672.jpg

    Above photo shows the yoke mounted on the column with it's locking knob in place. The yoke was made from a piece of 1 3/4" O.D.X 7/8" I.D. D.O.M. tubing 2 1/4" long, this piece fits over the column, the other piece which supports the spindle was made from a piece of 1 1/4" O.D. CRS 2 1/2" long, the flat piece was made from a piece of 1/2" X 2" X 2 1/2" CRS

    Hand Tapping Machine-100_0673.jpg

    Above photo shows the spindle in the yoke with the Jacobs chuck and it's locking knob, Both locking knobs have a piece of 3/16" round delrin under them to prevent scoring the shafts, The spindle was made from a piece of 5/8" O.D. 303 stainless steel

    Hand Tapping Machine-100_0674.jpg

    Above photo shows the handle fully assembled and installed on the spindle, There is custom made acorn nut on top of the handle along with two custom made flat washers, one washer under the handle and one under the acorn nut, the two washers and acorn nut have been blackened

    Hand Tapping Machine-100_0675.jpg

    Above photo shows the machine fully assembled with a piece of material drilled and ready for tapping resting against a dowel pin

    Hand Tapping Machine-100_0676.jpg

    Above photo shows another view of the machine ready to tap

    Click here to purchase a set of these plans Tapping Machine
    Last edited by rossbotics; 09-10-2016 at 03:12 PM.

  2. The Following 4 Users Say Thank You to rossbotics For This Useful Post:

    Christophe Mineau (12-02-2014), kbalch (12-01-2014), Paul Jones (04-14-2015), PJs (06-16-2015)

  3. #2
    Hotz's Avatar
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    Wow. High quality finishing. congratulations.

    Friend HomemadeTools.Net

    Sorry my mistakes in english.
    to share your tip >>> http://www.homemadetools.net/forum/tool-tips-tricks/ <<<

  4. #3
    Content Editor Altair's Avatar
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    Nice work Doug. Looks store-bought.

    Al
    Last edited by Altair; 11-30-2014 at 10:22 AM.

  5. #4
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    Thanks rossbotics! I've added your Hand Tapper to our Tapping and Threading category, as well as to your builder page: rossbotics' Homemade Tools. Your receipt:


  6. #5
    Content Editor DIYer's Avatar
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    Wow, that's amazing work!

  7. #6
    Christophe Mineau's Avatar
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    Very nice and well made !
    Cheers !
    Christophe
    ________________________________________________________________
    Visit my Website : http://www.labellenote.fr/
    Facebook : La Belle Note
    All my personal works, unless explicitly specified, are released under
    Creative Commons BY-NC-SA license.

  8. #7

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    Lookin' Good!

  9. #8

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    Hand Tapping Machine-m6-open.jpgHand Tapping Machine-rifling-machine001.jpgHand Tapping Machine-ririling-buttons-bits.jpgHand Tapping Machine-ririling-maching2.jpgneed somthingm like that for my barrel reamer wana help me on my Rifiling project maybe we could come up with a new tool
    Last edited by Jamman; 04-03-2016 at 12:43 PM.

  10. #9
    rossbotics rossbotics's Avatar
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    Hi Jammin
    You want to make a barrel reaming tool or a rifling tool ? or both ? Anything can be made, what caliber is it ? how long is the barrel?
    Comments are always welcome

    Doug

  11. #10

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    got a .22 home made barrel its 1/2 od and 5/16 id x 18in long see my rifiling machine build I want to make a home made button thinking of using a spiral end mill and either pulling it through or pushing into the barrel using your set up or a modified verson I think it could work I am new at this and I figgure you would have some Ideas???
    Last edited by Jamman; 04-03-2016 at 01:26 PM.

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