bridging test (rectangular)

This is a set of 3D printing bridging test models, based on a minimalist rectangular frame, using 0.2mm filament to construct spiraling and interlaced bridging structures in hollow areas. It focuses on rapid prototyping.

Its core function is to verify the bridging performance of 3D printers: when the print head moves in unsupported suspended areas, whether the filament can uniformly and stably 'bridge' to form continuous structures, testing both the precision of the equipment and the fluidity and adhesion of the filament.

By observing the lines

1. Filament continuity: whether the printed filament can complete the bridge continuously and without breaks in unsupported suspended areas;

2. Structural stability: whether the bridged part sags or deforms, and whether it can maintain its designed shape and tension;

3. Precision and uniformity: whether the spacing and thickness of the bridged lines are uniform, and whether they meet the model's dimensional requirements;

4. Filament adaptability: whether the fluidity and cooling speed of different filaments (e.g., PLA, PETG) during bridging match the equipment parameters.

Printing more can serve as interesting splicing and stacking ornaments, which are also aesthetically pleasing.