1 in mini blind bottom rail end cap (rounded 1 x 3/16 in rail)

Printable replacement. Model size: Rail opening 26.0 x 5.4 mm (0.3 mm clearance), 9 mm deep, 1.2 mm walls, 4 mm pin hole. **Verified against published specs:** Sized from the published rail size. (Fits around a rounded rail 1 x 3/16 in, with a hole for the hold-down bracket (FixMyBlinds). Some rails are 3/8 in high (BlindParts)) **Estimated / please check:** The pin hole size (4 mm) is estimated. For 3/8 in-high rails, set `rail_h` to 9.5. Files: STL, STEP and a FreeCAD .FCStd with a Params spr…

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