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  • Maybe I didn't state it correctly this time. More or less, I want the box to be no larger than 1.25ft^3 volume, and everything has to be inside of it. There aren't maximum dimensions allowed or even preferred, just stating that the enclosure sets the size, and nothing sticks out of it. You are correct in your thinking about how it should be viewed.

    If you alter a driver, the added cost of what you do to it should be added. If you machine your own waveguide in the baffle, then it does not add to the cost because nothing as purchased. If you purchase one, then it adds. If you print it yourself using a 3D-printer, then you are building the waveguide yourself, and it cannot be purchased; however, I would think the cost of the filament might need to be added, due to adaptation/modification. If you farm out the printing process, then the manufacturing/purchase cost should be included. This is indeed where that edge gets fuzzy, as it in effect is "what was done by whom?" rationale. Make sense?

    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

    *InDIYana event website*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

    Comment


    • Thanks Ben.

      I think it's clear on the waveguide and box volume now.

      I'm also talking about making my own driver. Based on the guidelines for the waveguide, you're talking about including material (e.g. 3D printer filament) costs. At low buy quantities, this makes it difficult to "manufacture" a driver at this price point, even with just material costs. Nonetheless, I'm seriously considering it anyway. Thoughts?
      SEC DIY 2014 Speaker Show is on! *November 8th*
      Wanna win a set of Newform Research R30 ribbons?!?!
      SEC DIY 2014 Thread

      SEC DIY 2012 Speaker Show
      SEC DIY 2011 Speaker Show

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      • I don't have a problem with you making your own driver, but with one caveat- the design must be repeatable. If you cannot order more of what you make or machine, or someone else can't get/make one, then it nulls the repeatability factor.

        Later,
        Wolf
        "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
        "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
        "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
        "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

        *InDIYana event website*

        Photobucket pages:
        http://photobucket.com/Wolf-Speakers_and_more

        My blog/writeups/thoughts here at PE:
        http://techtalk.parts-express.com/blog.php?u=4102

        Comment


        • I have focusing on fishing for the past few months so have not posted here. I'm still fascinated with speaker building though, had a truly great time at InDIYana 2018, and think that the Bare Minimum challenge will be super. If the event is in March or April I plan to attend and hope that, just maybe, I'll be able to build a pair that I can ship up. The size and cost constraints of the theme make it a lot more feasible for folks to attend and enter the challenge who live too far away to drive. I'm excited!
          Best,
          Jay

          Comment


          • Jay, nice to hear from you. I thought we ran you off with all the x-o talk...
            John H

            Synergy Horn, SLS-85, BMR-3L, Mini-TL, BR-2, Titan OB, B452, Udique, Vultus, Latus1, Seriatim, Aperivox,Pencil Tower

            Comment


            • Originally posted by Drjay View Post
              I have focusing on fishing for the past few months so have not posted here. I'm still fascinated with speaker building though, had a truly great time at InDIYana 2018, and think that the Bare Minimum challenge will be super. If the event is in March or April I plan to attend and hope that, just maybe, I'll be able to build a pair that I can ship up. The size and cost constraints of the theme make it a lot more feasible for folks to attend and enter the challenge who live too far away to drive. I'm excited!
              Best,
              Jay
              When will be decided in December, but it is normally in April.
              Later,
              Wolf
              "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
              "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
              "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
              "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

              *InDIYana event website*

              Photobucket pages:
              http://photobucket.com/Wolf-Speakers_and_more

              My blog/writeups/thoughts here at PE:
              http://techtalk.parts-express.com/blog.php?u=4102

              Comment

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