# make_spur_rack_rsolid ## API Definition ```python def make_spur_rack_rsolid(module: float, n_teeth: int = 10, pressure_angle: float = 20.0, rack_height: float = 6.0) -> Solid ``` *Source: std/gear.py* ## Import Surface - standard library: `import simplecadapi as scad` then `scad.std.gear.make_spur_rack_rsolid(...)`; direct submodule import: `from simplecadapi.std.gear import make_spur_rack_rsolid` ## Description Create a straight-tooth rack. ## Parameters ### module - **Type**: `float` - **Description**: Gear module in mm (tooth pitch = pi * module). ### n_teeth - **Type**: `int, default 10` - **Description**: Number of teeth along the rack. ### pressure_angle - **Type**: `float, default 20` - **Description**: Pressure angle in degrees. ### rack_height - **Type**: `float, default 6.0` - **Description**: Rack thickness along Z in mm.