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Universal Roller Shade Pin-End L Bracket
L-shaped replacement bracket for the idler (pin) end of a roller shade, replacing cracked or discontinued brand brackets without changing the tube ends. A closed tapered slot (4.6 mm at the bottom widening to 10.8 mm at the top) self-seats any round spring-loaded idler pin from 5 to 10 mm diameter; the pin axis stands 30 mm off the wall plate so tubes up to 38 mm OD clear it. Four 4.5 x 14 mm vertical slots take #8 pan-head screws for outside mount (wall leg) or inside mount (pin leg) and give 10 mm of height adjustment to level against your existing clutch bracket. 60 x 24 x 56 mm, 4 mm plates with a 6 mm corner web, printed standing so load runs along the layers.
Print-In-Place Shade Chain Loop Tensioner
This print-in-place tensioner for roller and cellular shades has a 40 mm V-groove pulley (8 mm wide, 4 mm deep). The pulley turns on a 9 mm pin and is held in place by an overhead bridge, with 0.5 mm clearance on every mating face. Two #6 screws (4.5 mm holes) hold it to the frame: one goes through the hollow pin and one through the tab. It keeps a loose bead-chain or cord loop (up to about 5 mm) taut and close to the wall, so a worn clutch is less likely to let the shade droop and children can't pull the loop out.