Parametric Mudguard Extender (SKS Raceblade XL & Custom)

A fully parametric mudguard extension to reduce road spray. The default .3mf perfectly fits the SKS Raceblade XL, but the included OpenSCAD file allows you to generate a custom fit for any wheel size and mudguard width.

It features an integrated, recessed cutout section designed to overlap seamlessly with your existing mudguard for a clean mounting surface (glue, tape, or drill).

Print Instructions:

• Material: PETG or ASA/ABS.

• Orientation: Print standing up with brim.

• Supports: None

• Layer Height: 0.2 - 0.3 mm

Customizing with OpenSCAD

This model is fully parametric. You can adjust the dimensions using OpenSCAD's built-in Customizer or via the command line. Note: This script requires the BOSL2 library.

Parameters

• WIDTH: Total width of the mudguard (mm).

• THICKNESS: Total wall thickness (mm).

• R_WHEEL: Wheel radius + desired clearance (mm).

• SWEEP_ANGLE: Total length of the extension (degrees).

• OVERLAP_THICKNESS: Thickness of the recessed mounting step (mm).

• OVERLAP_ANGLE: Length of the mounting overlap (degrees).

Method 1: OpenSCAD GUI

1. Open the .scad file in OpenSCAD.

2. Enable the Customizer panel (Window -> Customizer).

3. Adjust the sliders and values to fit your bike.

4. Press F6 to Render, then F7 to Export as a .3mf or .stl.

Method 2: Command Line (CLI) You can generate a custom model directly from your terminal by overriding the default variables: openscad -o custom_mudguard.3mf -D WIDTH=50 -D R_WHEEL=360 mudguard.scad