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Thread: [UK] Machining Request - Surefire Host Boring

  1. #1
    Flashaholic Matt7337's Avatar
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    Default [UK] Machining Request - Surefire Host Boring

    I know this is a long shot, but is there anyone based in the UK who would be willing to bore a 6P body for me to suit 18650's? I discussed this earlier with a machinist at the plant where I have other small one-off jobs done, but he wasn't confident about being able to grip the battery tube in the lathe without making a custom nylon/delrin holder for it, which would obviously incur more cost than one tube is worth.

    Thanks in anticipation
    I now own too many lights to list in my signature! My current EDC favourites are a Nitecore SRT3 and Olight S1R.

  2. #2
    Flashaholic Matt7337's Avatar
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Nobody? OK, let's open this up a little bit - is there anyone in Europe who would be able to do this?
    I now own too many lights to list in my signature! My current EDC favourites are a Nitecore SRT3 and Olight S1R.

  3. #3
    Flashaholic*
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Suggestion. Ask machinists on CPF how they grip bodies.
    Then ask your machinist to do it that way. Pretty sure I have seen machinists here use cardboard to grip bodies.

  4. #4
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    Default [UK] Machining Request - Surefire Host Boring

    Do what I did...... Use a round file and file it out by hand. A few hours and a tired arm later you a 18650 should fit. No I am not kidding I really did do it on an old surefire 6P!

  5. #5
    Flashaholic* fivemega's Avatar
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Or get a professionally made custom 18650 body and keep the original body intact for future use or resale.

  6. #6
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Quote Originally Posted by fortean101 View Post
    Do what I did...... Use a round file and file it out by hand. A few hours and a tired arm later you a 18650 should fit. No I am not kidding I really did do it on an old surefire 6P!
    Less than 30 minutes and no tired arm.
    Here's how I bore my Surefires.

    http://www.candlepowerforums.com/vb/...-Z2&highlight=

  7. #7
    Flashaholic* Icarus's Avatar
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Quote Originally Posted by Matt7337 View Post
    Nobody? OK, let's open this up a little bit - is there anyone in Europe who would be able to do this?
    I think it would be cheaper to buy a new Solarforce L2P body or even a complete Solarforce L2P.
    Last edited by Icarus; 10-12-2013 at 11:38 PM.

  8. #8
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    Default

    personally seen 2 times;
    one of these times my 6P body, done some years before it got standard in here:

    wrap the body with 2 layers of normal white paper
    + be a bit sensitive at clamping it


    advice when having it done from a machinist, who did not do that yet:
    * the arm holding the cutting blade should be as massive as possible (will start to swing when not)
    * do not take out the slightest diameter that is not needed (take Your fattest cell, keep sticker on. That cell should just fit in, no rattling or something ...)
    (at the back end, where the rubber sealing ring sits, only paper thin material remains - which is my point not to use a hand file)


    PS: +1 for getting a ready made 18650 body ...

  9. #9

    Default Re: [UK] Machining Request - Surefire Host Boring

    I bored out my SUREFIRE FURY myself - here are some tips

    Used a 18v drill, took 2 batteries
    Take the o rings off
    I used a socket wrench extension wrapped in duct tape to get it to the right size
    Cut a piece of 60 grit sandpaper taped (about 1/2 inch bigger on each end than the tube) and wrapped around in the right direction the drill rotates
    Used a heavy leather work glove to hold the body
    It gets kinda hot if run fast so I would rinse with water every 10-15 minutes and try to put a battery in it
    Had to change the sandpaper 3-4 times and add more duct tape
    You might use a bad battery when testing it because the wrapper may get damaged
    Bore it enough so the battery can fall out on its own, the battery should not be a tight fit
    Dont bore it too big, the tube is thinner near the end and where the o rings are
    After it is bored enough I smoothed it out with fine steel wool
    It is important to get the tube smooth so the batteries wont get damaged being taken in and out
    Took about an hour and a half


  10. #10
    Flashaholic* tx101's Avatar
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    Default Re: [UK] Machining Request - Surefire Host Boring

    Buy a cheap P60 head (Solarforce)
    Install on your SF body
    The lathe holds the head leaving your body risk free

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