Full Range Bluetooth speaker 3"

🎵 DIY 3D Printed Bluetooth Speaker

Welcome to my 3D printed Bluetooth speaker project! This model is designed so you can easily print and assemble a fully functional, great-sounding speaker yourself. It delivers crisp audio and tight bass, featuring a carefully designed internal layout for the passive radiators and the full-range speaker driver.

Below is the complete list of parts, materials, and recommended 3D print settings to ensure the strongest and best-sounding build possible.

📺 Assembly Video Tutorial

Need help putting it together? Watch my step-by-step video guide to see exactly how to install the electronics and assemble the enclosure from start to finish: 👉 [Watch the Assembly Video Here]

🎨 No AMS? Pre-Printed Front Cover Available!

The front grill/cover of this speaker is designed to look best when printed in 2-3 colors, which requires an AMS (Automatic Material System) or multi-color printing setup. If you don't have an AMS, don't worry! I am selling pre-printed, high-quality front covers ready to be installed on your speaker. 👉 [Buy the Pre-Printed Multi-Color Front Cover Here] [Link]

🛒 Bill of Materials (Hardware & Electronics)

Speaker & Audio Components You can purchase the following main audio parts from this link: 👉 [Link]

• Full-Range Speaker Driver: 3-inch, rounded square shape (x1) Link
• Amplifier Board: ZK-502L Digital Stereo Bluetooth Amp Module (x1)  Link
• Passive Bass Radiators: (x2) Link

Power, Hardware & Assembly Accessories You can purchase all the necessary hardware and assembly materials from this link: 👉 [Link]

• Power Supply: 12V 3A DC Power Adapter (5.5 x 2.5 mm plug) (x1) Link
• DC Power Jack: Female socket, 5.5 x 2.5 mm (x1) Link
• Anti-Slip Base: Black EVA foam tape / adhesive pad Link
• Adhesive: B-7000 multipurpose glue (for sealing and securing parts)Link
• Threaded Inserts: Brass heat-set inserts M3 x 5 x 4 (x8) Link
• Screws (Enclosure Assembly): M3 x 5 mm Flat Head Phillips / Countersunk screws (x4)  Link
• Screws (Enclosure Assembly): M3 x 14 mm Flat Head Phillips / Countersunk screws (x4) Link
• Screws (Internal/Board): M2 x 6 mm Pan Head Phillips self-tapping screws (x4) Link (Note: Strong double-sided tape can be used as an alternative if you don't have M2 screws) Link

🖨️ Recommended Print Settings

To ensure optimal acoustics and a sturdy structure capable of handling heavy bass vibrations, I highly recommend using the following slicer settings:

• Filament: PETG (Recommended for durability and structural integrity)
• Layer Height: 0.20 mm
• Wall Loops: 5
• Infill Pattern: Gyroid
• Sparse Infill Density: 25% - 35%
• Ironing: Top surfaces only (for a smooth, clean finish)
• Supports: Enable Supports / Tree Slim (Auto)

Watch my step-by-step video guide