The process begins with spreading a thin layer of powder, such as metal, ceramic, or sand, onto a build platform. An inkjet printhead then deposits the binder in specific areas to adhere the particles together according to a digital 3D model. This process is repeated layer by layer until the part is complete. Once printed, the part, known as a “green part,” is typically fragile and must undergo post-processing, such as sintering or infiltration, to enhance its strength and durability. One key advantage of BJT is that it does not require support structures during the printing phase, as the surrounding loose powder acts as a natural support. However, if sintering is required to strengthen the part, which is the case with metals, external supports may be needed during this post-processing stage. These supports are typically separate from the printed part and can be removed afterwards. BJT is widely used in industries such as aerospace, automotive, and consumer goods for creating detailed, complex parts and molds.

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