Subscribe to Make Magazine Today!
  • JD

    this method is in the improvised munitions handbook for the army.

  • Stunmonkey

    I never had a consistent success with it, but it does work if you have no other easy options, or have a surplus of bottles in case you screw one up.

    JD is right, they used to teach using the punt on the bottom of a wine bottle for forming field-expedient shaped charges. Funny stuff.

  • mikeisbored

    Thanks for posting my video and the link to my page.

    I can tell you for sure it is not by anymeans a precise method but it is a fun one. If I am cutting bottles well I use my dremel tool and a diamond cutting blade.

    http://mike-is-bored.blogspot.com/2009/10/how-to-cut-wine-bottles-with-dremel.html

  • Todd

    You should try a combo of your acetone method with the scoring. Just use your acetone (or try denatured alcohol) string in place of the torch.

  • Jim McCorison

    Acetone is absorbed through the skin quite readily. Please wear gloves when handling it.

    Also, it should be noted that acetone vapors are also flammable.

    Not saying that you shouldn’t do this. Just saying to exercise appropriate caution.

  • mikeisbored

    for a while i would score lightly before doing the string but i did not find it made a big difference. I did often score too low back then though. I find the break is usually just a bit above the string. maybe ~3mm higher where the heat is highest.

  • krs

    and what about a thin copper wire used as resistor to heat up the bottle? Could produce more precise break.

    • mikeisbored

      Yeah I like that system. I think it does a very clean break. Never tried it. I think you do it with a little spray bottle of water. Something strikes me as odd about water+electricity but I would love to try it.

    • mikeisbored

      Yeah I like that system. I think it does a very clean break. Never tried it. I think you do it with a little spray bottle of water. Something strikes me as odd about water+electricity but I would love to try it.

  • Tiffany Eaton

    Tried that this morning; didn’t work. Just bought a $6 glass cutter at a craft store, and about to attempt that instead!

  • http://www.jordonglass.com/ Nancy Weaver

    This is a very nice glass cutting tutorial. I really love do it yourself projects and that one I haven’t tried doing it yet, but I will definitely give this a try. Thank you so much for sharing this video.