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3D printed waveguides

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  • Brandon,

    This is Tim Allen, using a different User Name. I've been using the larger version of the tweeter. The face plates I've had were not concentric with the surround. Removing the faceplate solves the problem, but there is adhesive that pulls the connecting wires, risking disconnection and a tricky reconnection. I do like these tweeters, they produce a very nice sound combined with the Peerless NE225W-04 in T/L cabinets.

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    • Removing the face plate on my DA25TX00 caused the edge of the dome to lift. Not completely detached so I was able to reassemble without issues.
      John H

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

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      • Good to hear from you Tim!

        Yeah I wish you could remove the faceplate, but that's a sketchy business as John found. But at least it is flat so not a huge issue to design around. And it's thin. So the throat of the waveguide should be pretty similar to others I've done as far as how the dome "sees" it.
        ~Brandon 8O
        Please donate to my Waveguides for CNC and 3D Printing Project!!
        Please donate to my Monster Box Construction Methods Project!!
        DriverVault
        Soma Sonus

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        • Brandon,

          I did remove the plate, and resolder the broken wires. But, also thought of turning a very thin throat section to make up directly to the surround, just clearing the FP. The section could have been ~.015" in section, no more.

          Depending upon the concentricity of the tweeter you receive, you may be able to print a thin ring at the throat to clear the FP and make up to the surround, but the print resolution will need to be quite accurate, otherwise, you'll need to live with the manufacturer's FP bevel as part of the throat.

          It all worked out well, and the sound is just what I wanted. However, for a few cents more, the manufacturer could have done better, especially given the cost of these tweeters.

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          • Originally posted by TNA View Post
            Brandon,

            But, also thought of turning a very thin throat section to make up directly to the surround, just clearing the FP. The section could have been ~.015" in section, no more.
            Yes that is exactly the feature the next design will have. My printer should print it just fine.
            ~Brandon 8O
            Please donate to my Waveguides for CNC and 3D Printing Project!!
            Please donate to my Monster Box Construction Methods Project!!
            DriverVault
            Soma Sonus

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            • Here is what I had in mind, black is the FP, blue the turned, printed, or milled lip that allows the WG throat to make up to the surround. This allows the WG contour to remain consistent to the surround.

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              • I do not have a Peerless BC25TG around now - can anyone supply a picture with the faceplate off? If not, I'll do it next time I get one.

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