Mechdesign98 on Instagram: "Best Door Hinge Ever?✨🚪 360° Rotation #engineering #mechanism #3dprinting #machine #automation #mechanical #mechanic #automobile #3ddesign #manufacturing This video demonstrates a gear-driven door hinge mechanism. Unlike standard butt hinges, which are mechanically limited to about 180° due to overlapping knuckles and leaf thickness, this design allows full 360-degree rotation. The hinge uses intermeshing helical gears to guide and support the rotation of a single mo

MST. AMINA on Instagram: "- This 15-second video showcases a clever and resourceful “Native Hack” for creating a functional door hinge using a bicycle chain and a wooden frame. The Process: The creator demonstrates the step-by-step assembly, starting by drilling a segment of a bicycle chain directly into the wooden door frame. This serves as a durable and flexible alternative to traditional metal hinges. - The Construction: Using simple materials like wood and wire mesh, the DIY project comes to