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3D Printed Voxel finally complete, thanks guys!

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  • 3D Printed Voxel finally complete, thanks guys!

    I finally got around to posting my 3D printed Voxel project, and some cute little BMR satellites to go along with it. A number of people here patiently answered questions along the way, thanks for your help. And of course, thanks to Paul Carmody for the Voxel design!
    Project write-up shared here, including all the stl's for printing it:
    https://www.instructables.com/P-CUBE-Speaker-System/
    (If anyone thinks there are any technical inaccuracies in the write-up, feel free to let me know. )
    Attached Files

  • #2
    They turned out really nice, did you have to do any post processing with these?

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    • #3
      No post processing of the surfaces, just a few glue joints, some blue tack and a shed load of screws!

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      • #4
        Those are really nice looking. How do they sound?

        TomZ
        Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
        *Part 2 *Gluing multiple curved laminations of HDF

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        • #5
          Fantastic!!
          Isn't it about time we started answering rhetorical questions?

          Paul Carmody's DIY Audio Projects
          Twitter: @undefinition1

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          • #6
            They look store bought, meant as a compliment.

            Nice photography too.

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            • zx82net
              zx82net commented
              Editing a comment
              Thanks! I know more about cameras than I do speakers :-D

          • #7
            Originally posted by tomzarbo View Post
            Those are really nice looking. How do they sound?

            TomZ
            The satellites are remarkable for a 2 inch cube. Also, I love the sound of the BMR drivers so I may be slightly biased. The BOM for the satellites is ~$20, including the plastic, which I feel is very good value. In my experiments so far, I like the 35mm BMR even more than this 28mm one, but the larger one is much more of a mid-range unit, I don't think it would be possible to hit 140Hz with the 35mm. I'm going to try doing a slightly larger version of the satellite, something which could cross over in the 110-120Hz range, rather than 130-140Hz. I haven't selected drivers yet, but I'd like to do something with <500ml enclosure, ideally the 300-400ml range. I don't have room for any more large speakers, and it's fun seeing what you can do in a small package. I think it also makes a project more accessible to anyone else who want's to give it a go.

            I was worried initially that the Voxel configuration with the end plates and louvers might mess with the tuning, but the impedance curves are exactly the same with and without them on, and there's no turbulence noise or rattling from the louvres, so it seems I got away with it. :-D

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            • #8
              Originally posted by Paul Carmody View Post
              Fantastic!!
              Thanks Paul, that means a lot.

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              • #9
                So were you able to adjust the tuning of the bass response to your liking?
                Isn't it about time we started answering rhetorical questions?

                Paul Carmody's DIY Audio Projects
                Twitter: @undefinition1

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                • zx82net
                  zx82net commented
                  Editing a comment
                  It turns out my office is kind of "live" at around 50Hz, 3.4m wide by 3.4m high :-/
                  I tried it in a larger room and it was not nearly so boomy. I'm going give the woofer a good break in, then re-measure it and try adjusting the port if it hasn't come down much.

              • #10
                This is great! It looks like you took advantage of the possibilities with 3D printing and really elaborated on the basic Voxel design. I gotta order some more filament now.

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