OCD SOUND FREAK BT Mod Box
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Description
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Meet the OCD SOUND FREAK BT Mod Box—where heavy-duty fabrication meets high-fidelity audio.
This isn't just another 3D printed speaker; it is a platform. Designed for makers who demand versatility, this system utilizes a central "Head Unit" housing a powerful ZK-3002T Bluetooth Amplifier and a Milwaukee M18 battery interface.
The true innovation lies in the Quick-Connect Dovetail Rails. The speaker enclosures slide effortlessly onto the main unit, mechanically locking into place while simultaneously making the electrical connection via integrated spring-and-tab terminals. No wires to plug in, no latches to fumble with—just slide, click, and play.
Current Configuration: This release features the "Marine 8" modules, specifically designed to house SKAR Audio 8-inch Marine Full-Range Speakers, printed in durable PETG HF to withstand the elements.
Key Features:
- 🔋 M18 Powerhouse: Runs off standard Milwaukee M18 batteries for portable, long-lasting power. (DeWalt, Makita, and internal battery modules coming soon!)
- 🔗 Cable-Free Modularity: Proprietary sliding dovetail interface with integrated electrical contacts. Swap speaker sizes or configurations in seconds.
- 🔊 Massive Soundstage: Accommodates high-end drivers like the SKAR 8" Marine series for deep bass and crystal-clear highs.
- 🛠️ Heavy-Duty Construction: Designed for PETG HF filament, ensuring heat resistance and durability for outdoor use.
- 🎛️ Integrated Controls: Easy access to the ZK-3002T amp controls for volume, treble, and bass adjustments.
Bill of Materials (BOM):
Electronics & Audio
- Amplifier: ZK-3002T Bluetooth 2.0 Channel Amplifier Board (300W + 300W)
- Speakers: 2x SKAR Audio 8" Marine Grade Full Range Speakers (SK8MB) or equivalent 8" drivers.
Terminals & Connections
- Modular Rails: Battery Terminal Springs (Keystone 209) — Required for the dovetail contacts.
- Battery Interface: 2x 1/4" Male Quick Disconnects (16-14 Gauge) — Slide into the battery housing to act as M18 terminals.
- Speaker Wiring: 4x 1/4" Female Quick Disconnects (16-14 Gauge)
Hardware
- 36x No. 8 Flat Head Wood Screws, 1-1/4" Long (18-8 Stainless Steel) — Main assembly.
- 8x No. 4 Flat Head Wood Screws, 1/2" Long (18-8 Stainless Steel) — Component mounting.
Filament
- PETG HF (Recommended for high strength and outdoor temperature resistance)
Future Roadmap:
This project is alive! I am currently developing:
- Adapters for DeWalt and Makita batteries.
- A dedicated internal battery module.
- Various speaker enclosure sizes for different driver setups.
How to Support:
Boost Me (for free)
Love the Mod Box? A Boost helps fuel the development of the upcoming DeWalt and Makita battery adapters! Your support keeps the prototypes printing and the new modules coming. Let's make this the ultimate speaker platform!
Membership
The Mod Box is just getting started! I am actively designing adapters for DeWalt and Makita batteries, a dedicated internal battery module, and new speaker pod sizes. Hit that Subscribe button so you get notified the second the new modules drop you won't want to miss the upgrades!
If you love this design, please like, boost, and post your makes! This project is a labor of love from the OCD Tool Freak shop.
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License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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