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aluminum extrusion connectors for 3D printer frames

Aluminum extrusion connectors join 2020–4040 T-slot profiles to build rigid frames for 3D printers, CNC machines, and robotics. Made from high-strength 6063/6061 alloys with anodized or sandblasted finishes, they ensure precise 90° alignment, easy assembly, adjustability, and long-lasting stability for industrial or DIY projects.