The Tesseract Sub Build - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 13 Old 06-04-2019, 08:33 AM - Thread Starter
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The Tesseract Sub Build

Here is my first DIY sub! The bracing on the inside is a bit over-engineered, but it should at least be well braced and I think it looks cool. I was going for the window-pane style bracing, but required some of the portions to be circular to fit the subwoofer. I also added extra bracing to make sure no portions of the outer panels had too much surface area without bracing, in case there were any resonance issues. I designed the box in Solidworks and then had the pieces CNC'd. Unfortunately I goofed the tolerancing a bit, so some of the datums and grooves required a bit of sanding to fit. It uses a ton of wood glue and I sealed the inside seams with epoxy.

The subwoofer used is a SI HST-18 MKIII. It's a beast of a sub! The weight of the box was ~80 lbs and the sub is another ~80, giving a total weight for whole thing at 160+ lbs. The dimensions of the box itself are 22" x 22" x 22" and there is a neutrik connector in the back.

I'm calling it "The Tesseract" because it's a complicated cube structure that is blue (and I love the Marvel movies). Hope you enjoy seeing it!
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post #2 of 13 Old 06-04-2019, 08:43 AM
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Looking forward to seeing it. Make with the pics!
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post #3 of 13 Old 06-04-2019, 08:44 AM - Thread Starter
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Here is the CAD image and some initial fitting pics.

EDIT: The CAD pic is an older version, it's missing the circular window-pane style brace nearest to the sub opening.
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Last edited by Chris Maxey; 06-04-2019 at 08:49 AM.
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post #4 of 13 Old 06-04-2019, 08:45 AM - Thread Starter
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Some painting pics.
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post #5 of 13 Old 06-04-2019, 08:47 AM - Thread Starter
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Pic of the sub and final assembly.
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post #6 of 13 Old 06-04-2019, 10:22 AM
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Damn, I thought I was going to find a glowing blue glass sub when I opened this thread... but still, great work, especially the intricacy of the bracing.

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post #7 of 13 Old 06-04-2019, 10:28 AM - Thread Starter
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Quote:
Originally Posted by Stephen Hopkins View Post
Damn, I thought I was going to find a glowing blue glass sub when I opened this thread... but still, great work, especially the intricacy of the bracing.
That would be awesome. Next build perhaps!
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post #8 of 13 Old 06-04-2019, 10:32 AM
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That's some excellent and intricate woodworking! Nice job!
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post #9 of 13 Old 06-04-2019, 11:17 AM
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Would it be possible to use plexiglass on a few panels? Throw a few blue LEDs in there for effect

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post #10 of 13 Old 06-04-2019, 12:26 PM
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Looks great! That's some intricate stuffing work.

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post #11 of 13 Old 06-04-2019, 08:21 PM
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Quote:
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Would it be possible to use plexiglass on a few panels? Throw a few blue LEDs in there for effect


Hah that would be awesome! But that thick of plexi would probably cost as much as the sub


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post #12 of 13 Old 06-06-2019, 05:24 AM
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I was thinking some printed "veneer" to look like the tesseract would be the easy way. like a vinyl wrap. Ive actually seen a way with epoxy counter tops with fiberoptic lights embeded that had a really cool effect.
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post #13 of 13 Old 06-07-2019, 07:16 PM
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I was thinking more like glow-in-the-dark radioactive-blue mixed with 2-part clear epoxy for a high-gloss look.


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Last edited by BassThatHz; 06-07-2019 at 07:20 PM.
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