Prometheus        
Page 1 of 3 123 LastLast
Results 1 to 30 of 87

Thread: WIP: Tungsten Flashlight

  1. #1
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default WIP: Tungsten Flashlight



    That little block of Tungsten, which is 1" x 1" x 2 3/16", weighs 1 pound, six ounces.

    Question is, what should I do with it? Make a not-pocket-friendly flashlight, or cut it into a couple of 1" squares and make two decorative paperweights?

    Maybe I'll go see how good W is at conducting heat first, before deciding.

    EDIT:

    Not that bad:

    W: Thermal conductivity 173 W/mK−
    6061AL: Thermal Conductivity 167 W/m-K
    Last edited by PhotonFanatic; 03-03-2013 at 11:32 AM.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  2. #2
    Flashaholic* Moddoo's Avatar
    Join Date
    Nov 2008
    Location
    Minnesota
    Posts
    1,243

    Default Re: Tungsten Flashlight, or something else?

    "1 pound, six ounces."

    Very exciting man,

    My vote is for you to make a light out of it.

    I will be watching this for sure

  3. #3
    Flashaholic* samuraishot's Avatar
    Join Date
    Jul 2009
    Location
    NY
    Posts
    839

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by Moddoo View Post
    "1 pound, six ounces."

    Very exciting man,

    My vote is for you to make a light out of it.

    I will be watching this for sure
    +1

  4. #4
    Light11's Avatar
    Join Date
    Nov 2009
    Location
    The Great Northwest
    Posts
    1,655

    Default Re: Tungsten Flashlight, or something else?

    I would like to see what a non-pocket friendly flashlight looks like

  5. #5
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    OK, I'll make a light from it.

    Next question: Should I work to minimize the weight, or to maximize the weight?
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  6. #6
    Flashaholic*
    Join Date
    Mar 2011
    Location
    SF Bay Area, CA
    Posts
    672

    Default Re: Tungsten Flashlight, or something else?

    Hi Fred,
    Paperweights would be such a waste...

    I think you have your conductivities backward. My sources tell me it's slightly lower than AL, not slightly higher - though, realistically, they're within experimental error of each other. Still just under 1/2 as good as copper, and 10 times better than 300-series stainless or Titanium. All of which have been used successfully in flashlights. So I think you're covered there.
    I've seen a thread where a couple people requested a tungsten light - you'd probably have no trouble selling it.
    With W's intrinsic hardness and strength, you could make it barely larger than the battery it surrounds. Which would keep weight down a bit, and could be its claim to fame.
    Any idea how hard it is to mill?
    Looking forward to seeing what you come up with.
    Last edited by tjswarbrick; 02-27-2013 at 06:35 PM.

  7. #7
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    I'll let you know re the machinability real soon--I think I'll turn it down to a cylinder tomorrow.

    I pulled those thermal conductivity numbers from Wikipedia--usually fairly reliable, but certainly not the authoritative source.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  8. #8
    *Flashaholic* StarHalo's Avatar
    Join Date
    Dec 2007
    Location
    California Republic
    Posts
    10,360

    Default Re: Tungsten Flashlight, or something else?

    You'd probably get more profit from it making bezels, but the advertising power of a solid tungsten light can't be denied..

    And it has just fine thermal characteristics, bearing in mind Al is always coated in something which reduces its heat conductivity:


  9. #9

    Default Re: Tungsten Flashlight, or something else?

    How about an area lamp along the lines of the Jillite Constel or Maratac TLL? I see a nice clear white dome on it with some great machining designs on the sides of the cube. Maybe a pressure switch on the bottom to activate it. You could keep the most mass, that's for sure.

  10. #10
    Flashaholic* samuraishot's Avatar
    Join Date
    Jul 2009
    Location
    NY
    Posts
    839

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by PhotonFanatic View Post
    OK, I'll make a light from it.

    Next question: Should I work to minimize the weight, or to maximize the weight?
    Maximize the weight

  11. #11
    Moderator
    archimedes's Avatar
    Join Date
    Nov 2010
    Location
    CONUS, top left
    Posts
    13,390

    Default Re: Tungsten Flashlight, or something else?

    I'd be very interested, depending on price ...

    My vote would be for a "Tungsten CR2 Fatty" -

    Weight is not a concern
    Last edited by archimedes; 02-27-2013 at 07:05 PM.
    ... is the archimedes peak

  12. #12
    Flashaholic* KuanR's Avatar
    Join Date
    Jan 2012
    Location
    Macau S.A.R.
    Posts
    1,802

    Default Re: Tungsten Flashlight, or something else?

    I am pretty excited to see this one evolve, would be cool if it took 18350 cells and aleph light engines. That would give power and upgrade ability in the future
    I'm Ryan.

  13. #13
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by KuanR View Post
    I am pretty excited to see this one evolve, would be cool if it took 18350 cells and aleph light engines. That would give power and upgrade ability in the future
    Not a bad idea--but it might have to be a mule since the bar is only 2" long. I think that I might already have an Aleph LE on hand, too.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  14. #14
    Moderator
    nbp's Avatar
    Join Date
    Dec 2007
    Location
    Wisconsin
    Posts
    9,404

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by PhotonFanatic View Post
    Not a bad idea--but it might have to be a mule since the bar is only 2" long. I think that I might already have an Aleph LE on hand, too.

    Tungsten Mule...

  15. #15
    Flashaholic* shado's Avatar
    Join Date
    Jul 2010
    Location
    Wild Rose Country
    Posts
    1,223

    Default Re: Tungsten Flashlight, or something else?

    How about .............a bunch of La Petite Killers
    My Lights__________________________________________________ ___________________________________________

  16. #16
    Flashaholic* Mattaus's Avatar
    Join Date
    Mar 2011
    Location
    Brisbane, Australia
    Posts
    1,765

    Default Re: Tungsten Flashlight, or something else?

    Looking at those numbers tungsten seems like one hell of a metal. Harder to machine than titanium? Or am I reading it wrong?

    Make a mule...I saw an interesting design around here somewhere

    lol

  17. #17
    Flashaholic
    Join Date
    Jul 2011
    Location
    Toronto, ON
    Posts
    422

    Default Re: Tungsten Flashlight, or something else?

    Make me a La Petite Killer with it...

    [edit] oops... Shado and I think alike, obviously.

  18. #18
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by persco View Post
    Make me a La Petite Killer with it...

    [edit] oops... Shado and I think alike, obviously.
    I can buy smaller diameter stock for an LPK version. We'll see how machining this goes first.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  19. #19
    Flashaholic
    Join Date
    Jul 2011
    Location
    Toronto, ON
    Posts
    422

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by PhotonFanatic View Post
    I can buy smaller diameter stock for an LPK version. We'll see how machining this goes first.

    Yessssss.....

  20. #20
    *Flashaholic*
    Join Date
    Jan 2012
    Location
    NJ
    Posts
    7,491

    Buttrock Re: Tungsten Flashlight, or something else?

    Too bad milling wastes a lot of material. Maybe make several small square (or long cube) lights.


  21. #21
    Flashaholic* samuraishot's Avatar
    Join Date
    Jul 2009
    Location
    NY
    Posts
    839

    Default Re: Tungsten Flashlight, or something else?

    Quote Originally Posted by TEEJ View Post
    Too bad milling wastes a lot of material. Maybe make several small square (or long cube) lights.

    I second this!

  22. #22
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    Turns out that Tungsten machines a bit like Titanium, so it isn't impossible to work with.

    The sad news is that there isn't enough length to the bar to make an Aleph mule, so I will make my own LE, most likely with a Nichia 219 and a mini FLuPIC three level driver. Had to drop down to a CR2 battery to get the light short enough. As a result, I'll take the diameter down to be more in tune with the diameter of the battery and LE--21mm to be precise.

    I'm also going to put a labor-intensive square checkered pattern on the surface--very similar to raised square knurling. I'll post a rendering soon.
    Last edited by PhotonFanatic; 03-02-2013 at 02:44 PM.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  23. #23
    Flashaholic* Mattaus's Avatar
    Join Date
    Mar 2011
    Location
    Brisbane, Australia
    Posts
    1,765

    Default Re: Tungsten Flashlight, or something else?

    So what's the intended maximum length of this light? I'm personally very interested to see how this turns out

    Sent from my Galaxy Nexus using Tapatalk 2

  24. #24
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    It will be around 56-57mm, give or take a couple mm's. I'm not trying to minimize the length, just get i down to fit the bar.

    Here are a couple of renderings. Not that I expect the W to be this shiny.


    Last edited by PhotonFanatic; 03-01-2013 at 05:33 AM.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  25. #25
    Flashaholic* Mattaus's Avatar
    Join Date
    Mar 2011
    Location
    Brisbane, Australia
    Posts
    1,765

    Default Re: Tungsten Flashlight, or something else?

    awwww....broken links

  26. #26
    Flashaholic* jamesmtl514's Avatar
    Join Date
    Oct 2009
    Location
    Montreal, Canada
    Posts
    1,841

    Default Re: Tungsten Flashlight, or something else?

    Links don't work, but i like where this is going. I'll take it!
    My lightsWTB: Surefire: New/Used/Rare. Currently looking for everything Crosshairs + D2. Interesting trades available.Everybody, just send your lights directly to James - he'll end up with them anyhow, lol. -Kestrel

  27. #27
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    I hosted the images on my website, instead of Photobucket--hopefully they will show now.
    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  28. #28
    Flashaholic*
    Join Date
    Dec 2003
    Location
    western Massachusetts
    Posts
    2,336

    Default Re: Tungsten Flashlight, or something else?

    Changed my mind--those squares were too small and would have taken an eternity to machine, so I've made them larger:


    PhotonFanatic—fanatic@photonfanatic.com
    CPF Custom Builders and Modders
    My Blog

  29. #29

    Smile Re: Tungsten Flashlight, or something else?

    Fred I'm drooling again! You know that saying is true: "You can't own just one PhotonFanatic Light" Studies have shown that your lights are addictive! Is their something your putting in them?

  30. #30

    Default Re: Tungsten Flashlight, or something else?

    tungsten CR2 fatty!

    A tungsten flashlight, has it been done before?


Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •