🥸 Sewing Machine Anatomy: How a Stitch is Made 1️⃣ Penetration of the fabric: - The needle, carrying the upper thread, moves downward and pierces the fabric. - As the needle descends, it creates a loop of the upper thread on its backside due to the interaction of the needle’s eye and the tension system. 2️⃣ Loop capture by the hook: - Beneath the fabric, the rotary hook rotates to intercept the upper thread’s loop. - The hook pulls the upper thread around the bobbin case, where it interlocks wi