Keep your important A4 documents, blueprints, certificate sheets, and artwork completely safe, clean, and uncreased!This Modular A4 Hard Case is designed specifically to protect your rolled paper files on the go. Whether you're carrying plain sheets or documents inside plastic sleeves/sheet protectors, this compact cylindrical case ensures max protection against bending, moisture, and crushed edges. Key Features:• Perfect A4 Fit: Engineered specifically for rolled A4 sheets (fits both bare paper and paper inside standard plastic sleeves).• Modular Assembly: Simple, clean multi-part print designed for easy glue assembly.• Durable & Rigid Design: Strong outer shell protects contents inside backpacks or bags.• Smooth Operation: Includes tolerances for smooth opening and closing. What’s Included in the Download:• STL Files: High-resolution STL files ready for any slicer.• 3MF Files: Pre-configured settings and ideal print orientation for Bambu Lab / OrcaSlicer users. Recommended Print Settings:• Material: PLA, PETG, or ABS/ASA.• Layer Height: 0.2 mm• Infill: 15–20% (Grid or Gyroid)• Supports: Not required (optimized for easy 3D printing)• Assembly: A few drops of superglue (CA glue) for joining the inner core parts.PLEASE NOTE: This is a DIGITAL DOWNLOAD (STL/3MF files). No physical product will be shipped.Assembly Instructions : https://youtube.com/shorts/-nrnylVyVGc?feature=share