Jerry
63 lines
1.6 KiB
Markdown
63 lines
1.6 KiB
Markdown
# make_herringbone_gear_rsolid
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## API Definition
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```python
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def make_herringbone_gear_rsolid(n_teeth: int, module: float, pressure_angle: float = 20.0, helix_angle: float = 32.0, gear_height: float = 10.0, *, addendum_factor: float = 1.0, clearance_factor: float = 0.25, backlash: float = 0.0) -> Solid
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```
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*Source: std/gear.py*
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## Import Surface
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- standard library: `import simplecadapi as scad` then `scad.std.gear.make_herringbone_gear_rsolid(...)`; direct submodule import: `from simplecadapi.std.gear import make_herringbone_gear_rsolid`
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## Description
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Create an involute herringbone (double-helical) gear.
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Each half uses a continuous twisted sweep with opposite handedness. The two
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halves share the rotated center profile and are fused into one solid.
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## Parameters
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### n_teeth
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- **Type**: `int`
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- **Description**: Number of teeth (>= 3).
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### module
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- **Type**: `float`
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- **Description**: Gear module in mm.
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### pressure_angle
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- **Type**: `float, default 20`
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- **Description**: Pressure angle in degrees.
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### helix_angle
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- **Type**: `float, default 32`
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- **Description**: Helix angle of each half in degrees.
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### gear_height
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- **Type**: `float, default 10.0`
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- **Description**: Total gear thickness along Z in mm.
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### addendum_factor
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- **Type**: `float, default 1.0`
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- **Description**: Tooth addendum as a multiple of module.
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### clearance_factor
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- **Type**: `float, default 0.25`
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- **Description**: Root clearance beyond the addendum, as a multiple of module.
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### backlash
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- **Type**: `float, default 0.0`
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- **Description**: Circumferential tooth-thickness reduction at the pitch circle in mm.
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