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Parametric Tented Split Keyboard Palm Rest

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Mrcymstr

@Mrcymstr_222673

Split palm rests printed in 2 parts with FreeCad - customizable interchangeable tenting base and simple soft palm pad.

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Model information

Source
Printables
Category
Computers
License
Creative Commons — Public Domain
DetailsFiles (9)Makes & comments (Makes: 0) (Comments: 0)Remixes (0)Collections (7)Related

Parametric Split Keyboard Palm Rest

A two-part, free-floating palm rest system designed specifically for split mechanical keyboards (Lily58, Corne, Sofle, and similar). Because the units are free-floating, they adapt to any desktop setup.

The top pad is optimized for low-infill TPU for a soft, cushioned feel, while the interchangeable tenting bases attach via rigid locating pins—requiring zero tools or hardware.

Key Features

  • 100% Support-Free: Print easily without support material on both parts.

  • 0 degree Tenting Option: Palm Pad can be used standalone directly on the desk for 0 degree.

  • Toolless Keyed Interlocking: Tent Base can be swapped using integrated locating pins that fit the underside of the Palm Pad.

  • Universal & Free-Floating: Designed for Lily58 and Corne keyboards, but floats freely for compatibility with other setups.

  • Fully Parametric: Includes STLs for Palm Pads and common angle Tent Bases (Left & Right). Custom angles can be generated via FreeCAD.

  • CC0 Public Domain: Free and open source—modify, share, sell, or remix without restrictions.

Recommended Print Settings

Palm Pad (TPU)

  • Material: TPU (95A or softer)

  • Infill: 10–15% (Gyroid recommended for optimal cushioning)

  • Walls / Perimeters: 2

  • Supports: None (Place the flat face containing the locating pin holes directly on the build plate)

Tenting Base (PLA / PETG)

  • Material: PLA, PETG, ABS, etc.

  • Infill: 15–20% (Grid or Cubic)

  • Walls / Perimeters: 3 (ensures strong, rigid locating pins)

  • Supports: None (Place the flat bottom face opposite the locating pins directly on the build plate)

Pro Tip: Glue a thin piece of shelf liner or adhesive rubber feet to the bottom of the Tent Base (or directly to the Palm Pad for 0° mode) to prevent sliding on smooth desks.

Customizing in FreeCAD

Created with FreeCAD v1.1 (compatible with FreeCAD v0.21+ / v1.0+).

  1. Open palm_rest.FCStd in FreeCAD.

  2. Select VarSet in the Tree View.

  3. In the Data tab below, adjust TentAngle to your target value.

  4. Select TentBaseLeft or TentBaseRight in the Tree View, then go to File $\rightarrow$ Export (or Ctrl + E) to generate your custom STL/3MF files.

Tags

parametricmultimaterialsupportlesscustomizabletpukeyboardfreecadnosupportergonomicpalmrestwristrestsupportfreenohardwaresplitkeyboardcrkbdcornetentinglilly58