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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
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  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
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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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    Reputation: Leopold Porkstacker's Avatar
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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!
    QUOTE from MTBR.COM: You have given Brewtality too much Reputation in the last 24 hours, try again later.

  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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