retractable projection bracket 3d model

Create a detailed 3D model of a retractable/foldable bracket for a portable projection screen, compatible with a standard 1/4"-20 UNC tripod screw mount, with the following specs: — Bottom: female 1/4"-20 threaded hole on a ~50mm circular base plate (8mm thick, ABS plastic). — Vertical post: ~25mm diameter, 80–120mm tall. — Retractable horizontal L-shaped arm (~60mm long) that folds flat against the post for transport and locks at 90° for use, with a spring-loaded pin or side clip latch. — Arm tip: hooked clip/channel (~22mm opening) to grip the top aluminum rail of a roll-up projection screen without tools. — Style: matte black ABS with internal ribbing; isometric technical render with dimensions; output as STL for FDM 3D printing with 0.3mm tolerance.