Bed adhesion 3D models (e.g., brims, rafts, skirts) prevent first-layer warping, lifting, or delamination in functional parts—critical for maintaining structural integrity and dimensional accuracy, especially for load-bearing, fitting, or mechanical components (like gears or brackets).
They optimize the first layer’s contact with the build plate to distribute heat evenly and reduce cooling stress. For example, a functional plastic bracket printed with a brim stays flat, so it doesn’t warp and lose its precise fit with a machine.
For warprone materials (ABS, Nylon), a simple brim is ideal—most slicers let you add it in a few clicks without extra design work.