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  1. #1
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    Bore a flat-bottom hole with a drill press! (Lux RC Host)

    I just finished boring a 20mm x 11mm flat bottom hole in a piece of 1" x 2" square stock with my drill press!


    Tools needed:
    -Harbor Freight drill press (the cheap one)
    -Cross slide vice (the cheap one)
    -M3 drill and tap
    -M3 machine screw
    -calipers
    -metric ruler
    -4mm 4fl end mill ($6.50 victormachine)
    -center punch
    -graduated drill bits from 1/8" - 1/2"
    -scrap aluminum I-Beam
    -scribe
    -Jigaloo spray lube
    -2x M3 washers

    Find dead center on the square stock with a ruler and scribe.
    Center punch.
    Drill from 1/8" to 1/2" at your desired depth.
    Find center on back side...drill and tap for M3 machine screw.
    Drill a hole in the top of the I-Beam just big enough for the M3 screw.
    Spray top of I-Beam and bottom of stock with lube.
    Thread machine screw through 2 washers, I-Beam, and into stock...snugly.
    Insert I-Beam into vice...now you have your "Rotary Table". (sort of)

    Center 4mm end mill in the 1/2" hole.
    Set depth in VERY SMALL increments to widen hole out to 20mm.
    Manually rotate square stock a full rotation.
    Return to center and increase depth.

    Repeat for approx. 17hrs ( ) or until you reach your desired depth.



    I was told by the neighbor that I could borrow his lathe...but all of his cutting tools and tail stop chuck were stolen. It has a 3-jaw chuck. I accidentally ordered square stock instead of more hex bar, so I figured a 3-jaw chuck wouldn't work. (and I don't have lathe bits)


    Now I got a 1" square stock lamp head to make a face cap for and do some finning!



    I'll finish this one and my little 3/4" hex for the single...and maybe justify sending all of my pieces off to be anodized.



    Pic's tomorrow...I'm tired now.
    Last edited by chelboed; 05-07-2010 at 07:45 PM.

  2. #2
    Dinner for wolves
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    Bad ass
    Responds to gravity

  3. #3
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    Full marks for effort and perseverence .

    you could have spent an hour with a dremel or grinder and made a boring bar from an old allen wrench and then used your mates lathe .

    you would not need the missing tailstock

  4. #4
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    Can you chuck a 4 sided stock into a 3-jaw lathe chuck? (I really dunno)

  5. #5
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    Quote Originally Posted by chelboed
    Can you chuck a 4 sided stock into a 3-jaw lathe chuck? (I really dunno)

    not easily but depending on the size of the chuck and if you have enough spare metal
    you could drill a 25 mm hole in the centre and if the chuck jaws will allow it chuck it up inside the hole to work on the other end with the boring tool .

    though your hex stock will go in great .

  6. #6
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    Pic's:




    And a little face-cap action:


    I may leave the face cap a bit thicker on this one and counter-sink the screws. Do a little beveling too.

  7. #7
    Dinner for wolves
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    Turbo bad ass
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  8. #8
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  9. #9
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    Quote Originally Posted by chelboed
    Pic's:


    You mean to tell me that you bolted the housing to a piece of aluminum and rotated it by hand while you were running the mill in the drill press?!?!?!

    Very ballsy, I love it! Nice work.

  10. #10
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    Thx...yah, it wasn't too terribly with the 4mm mill. If I had tried the 6mm...I may have lost a finger!

  11. #11
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    Damn you Harbor Freight, you might just ruin my marriage afterall!!! I’ve been needing a drill press for quite some time, and that “el cheapo” one pretty much fits the bill on many levels. Thanks for the tip!
    one by nine works just fine but single speed is all ya need

  12. #12
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    Well...pretty-much done with this one too. I decided to give it the longitudinal "jeweled look" like a nice rifle bolt, hahaha.





    Here's a good "glared" image of the jeweling.

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