1. The document describes the design and development of Safier, a sieve shaker that analyzes aggregate samples like sand by grain size and composition. 2. Safier uses mechanical vibration to separate sand particles by size as they pass through a column of sieves, reducing labor costs and time compared to manual sieving. 3. Testing showed Safier can sieve sand over twice as fast as manual methods and requires half the labor, showing its effectiveness for construction and other industries involving sieving or aggregate analysis.