Parametric Articulated Keychain -Multi-Shape/Color

🔗 PARAMETRIC ARTICULATED KEYCHAIN - MULTI-SHAPE & MULTI-COLOR

Create your own fully personalized articulated keychain! This OpenSCAD model generates a custom name tag with a robust "dogbone" double ball-joint mechanism. Fully parametric, version 1.5 now features multiple geometric shapes, dual-color support.

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KEY FEATURES:

- Four Geometric Shapes (base shape) – Choose between Circle, Square, Hexagon, or Octagon bases.

- Dual-Color Support (dual color enable) – Optimized for AMS or manual color change by adding a pause at the specific layer height.

- Background Plate (text_plate_enable) – Optional letter background plate for better contrast and depth.

- Double-Sided Text – Engrave names or messages on both sides of each link.

- Orientation Control – Choose text alignment for hanging (Vertical) or standing (Horizontal).

- Movement Behavior – Choose between "Free-spinning" (360° fidget-style rotation) or "Fixed-alignment" (keeps the text perfectly oriented and readable).

  - false: Ball Joint (Free rotation 360°)

  - true: T-Bar Joint (Restricted swing, keeps text aligned)

Invert Color: Use this option to highlight a specific letter by swapping its base and text colors. The "invert letter index" follows the letter position (e.g., 1 for the first letter, 4 for the fourth, like in the ARTHUR example).

- Braille Support – Unique mode to generate tactile Braille dots instead of text.

- Print-in-Place – Zero assembly required.

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CUSTOMIZABLE PARAMETERS:

- Text – Enter your name, phrase, or Braille characters.

- Geometric Shape – Select your preferred base geometry.

- Dual-Color Toggle – Enable secondary colors and set the split height.

- Background Plate – Toggle and adjust the height/offset of the letter background.

- Joint Type (Restrict Movement) – Switch between:

- Braille Mode – Toggle between standard text or Braille dots.

- Relief Height – Control embossed (up) or debossed (down) text.

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⚠️ IMPORTANT TIPS:

 FILE FORMAT: To preserve the original color characteristics of this project, always perform the download in .3MF format. The download in .STL format does not maintain color information or multi-object configurations.

MULTI-COLOR: Use the "Dual Color Enable" toggle to see the second color in preview. In the slicer, use the bucket fill tool or layer-based color changes for best results.

 TOLERANCE: The joints are designed with a 0.5mm gap. If they fuse, try reducing flow slightly or using "Exclusive" slicing tolerance.

BRAILLE: Ensure your layer height is 0.2mm or lower (0.16mm recommended) to resolve the tactile dots clearly.

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 PRINT SETTINGS:

- Material: PLA or PETG

- Infill: 15% (Gyroid recommended)

- Walls: 3 loops for joint strength

- Layer Height: 0.2mm

- Supports: Not required

- Ironing: Optional for top surfaces if a smoother finish is desired.

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Enjoy your custom keychain! 🎁