raygeo.ops.assembly.thread_mill

ThreadMillSpec

Parameters for the thread_mill assembler: one internal thread.

center

center: tuple[float, float]

handedness

handedness: str

"RH" or "LH".

nominal_diameter

nominal_diameter: float

Nominal (major) diameter of the thread (mm).

pitch

pitch: float

Thread pitch (lead): axial travel per revolution (mm).

safe_z

safe_z: float

tool_diameter

tool_diameter: float

Diameter of the thread mill cutter (mm).

z_bottom

z_bottom: float

Z of the bottom end of the thread.

z_top

z_top: float

Z of the top end of the thread (milling runs bottom-up).

Functions

generate_thread_mill()

generate_thread_mill(
    part: ops.part.Part,
    center: tuple[float, float],
    nominal_diameter: float,
    pitch: float,
    tool_diameter: float,
    z_top: float,
    z_bottom: float,
    handedness: str = 'RH',
    safe_z: float = 5,
    state: ops.state.State | None = None,
) -> ops.assembly.AssemblyResult

Generate one internal thread-milling cycle.

The tool plunges at the bore center to z_bottom (the pilot bore is assumed pre-drilled), swings out on a 180° tangential lead-in arc to the orbit radius, climbs the thread as a helical interpolation (one pitch per revolution), and swings back to the center on a lead-out arc. The thread length must be an integer multiple of the pitch. A right-hand thread climbs counter-clockwise, a left-hand thread clockwise.

Parameter	Type	Description
part	ops.part.Part	part owning the face the cycle is assembled on.
center	tuple[float, float]	(x, y) of the bore.
nominal_diameter	float	nominal (major) thread diameter (mm).
pitch	float	thread pitch (lead) (mm).
tool_diameter	float	thread mill cutter diameter (mm).
z_top	float	Z of the top end of the thread.
z_bottom	float	Z of the bottom end of the thread.
handedness	str = 'RH'	"RH" (default) or "LH".
safe_z	float = 5	safe rapid height (default 5).
state	ops.state.State | None = None	optional machine state (feeds, spindle, coolant).
Returns	ops.assembly.AssemblyResult	An AssemblyResult with the cycle's moves.

Thread-milling cycle: tangential lead-in, helical interpolation at one pitch per revolution.