Professional modular enclosure box designed specifically for 18650 lithium-ion battery packs, DIY power banks, and electronic projects. Featuring a smart interlocking dovetail joint system on the sides, this box allows you to easily connect multiple units together to expand your storage or power capacity.​Designed with precision for seamless 3D printing and hassle-free assembly. Perfect for makers, electronics hobbyists, and DIY enthusiasts.​Key Features:​Optimized Dimensions: Tailored specifically for 18650 cells and compact electronic components.​Interlocking System: Side dovetail joints allow you to lock multiple boxes together securely without extra hardware.​Secure Fit: Designed with tight tolerances and structural alignment lips for a clean, professional finish.​Versatile Use: Ideal for DIY power banks, battery storage, sensor enclosures, or small workshop accessories.​Printing Recommendations:​Layer Height: 0.2 mm​Infill: 15–20% (Grid or Gyroid)​Supports: Not required (optimized for clean orientation)​Material: PLA, PETG, or ABS