AfterGlow Bluetooth Speaker

DIY 3D-Printed Hi-Fi Bluetooth Speaker — Big Sound, Maker-Built

This project is about proving what’s possible when great design meets 3D printing. With nothing more than your 3d printer, a few off-the-shelf parts, and some creativity, you can build a portable Bluetooth speaker that rivals commercial units — not just in volume, but in clarity, warmth, and depth.

The secret isn’t software or complicated electronics. It’s smart, printable design. Every curve, chamber, and detail of this enclosure is engineered to get the most out of a single 3-inch full-range driver and dual passive radiators. The result is smooth, balanced sound with bass that reaches into the mid-60 Hz range — verified with real HouseCurve measurements — and mids and highs that stay rich and natural no matter what you’re listening to. With USB-C charging, And Bluetooth 5 
 

3D Printing First
 

The enclosure is the heart of this build. It’s fully printable, with no supports and an assembly process that’s straightforward for makers of all experience levels.

• Main body: Bambu PETG HF for strength and precision
• Accent panels and grille: Bambu Translucent PETG for a clean, modern look
• Feet and seals: Bambu TPU for AMS
• Can be printed in regular PLA

All components are designed to fit together cleanly with a satisfying, professional feel — no post-processing or special tools required.

Bill of Materials

• Dayton Audio PC83-8 full-range 3” speaker driver (8 Ω) https://www.parts-express.com/Dayton-Audio-PC83-8-3-Full-Range-Poly-Cone-Driver-295-156?quantity=1&srsltid=AfmBOopEINXNxkp3f8o6BQxtodplE9L-aTpfw2QVudKU1u2BFbfLGbw_
• Two 3” passive radiators tuned for ~70 Hz response https://www.amazon.com/dp/B0FJ268RHX?ref=ppx_pop_mob_ap_share
• Dayton Audio KABM-30M 25 W mono Bluetooth amplifier https://www.parts-express.com/Dayton-Audio-KABM-30M-1-x-30W-Bluetooth-5.0-Amp-Board-with-EQ-Programing-Port-325-530?quantity=1
• Three 18650 lithium-ion cells with protection board https://www.parts-express.com/Dayton-Audio-LBB-3v2-3-x-18650-Lithium-Battery-Charger-Board-Module-12V-with-Charge-Protect-325-201?quantity=1
• Stainless steel latching pushbutton switch https://www.amazon.com/dp/B0BXPFW69R?ref=ppx_pop_mob_ap_share
• USB-c connector https://www.amazon.com/dp/B0CJQV9KP8?ref=ppx_pop_mob_ap_share
• 17 M3*6 panhead screws
•  6 M4*8 panhead screws 
• 2 M2*4 panhead screws 
• 5min epoxy 
• 3D-printed enclosure (≈1.5 L internal volume)

-Instructions for the build-

https://www.instructables.com/AfterGlow-Hi-Fi-Bluetooth-Speaker/

Why Build It
 

This is a project for anyone who loves the process of making — not just assembling parts, but shaping how something looks, feels, and sounds. It’s an approachable weekend build that delivers results far beyond what you’d expect from a speaker this size or cost. And when you press play for the first time, you’ll hear the difference: deep, controlled bass, balanced mids, and clear highs — all from something you printed yourself.