## Design Concept The roller is designed to resemble a simple cylinder with an inner hole, making it suitable for various mechanical applications where rotation is required. ## Purpose This roller can be used in mechanical devices, tools, or DIY projects that require smooth rolling components. ## Printing Recommendations Use a standard PLA or ABS filament with a medium infill density for durability. A layer height of 0.1 to 0.2 mm is recommended for a smooth surface finish. ## Assembly Instructions Ensure the hole is clean and free of debris before inserting any axle or component for seamless rolling action. No further assembly is required.