Machinery TwinDocs

Line path object

Motion along an arbitrary piecewise path of straight and arc segments.

A line path object follows a route you compose from linear and arc segments, conveyor routes with corners, transfer lines, guided vehicles, cable carriers. One variable drives the distance travelled along the path.

Parameters

ParameterMeaning
Movement variableDistance travelled along the path
Line segmentsOrdered list of segments (below)
Rotation enabledObject turns to follow the path tangent
Flip upFlip the object 180° about its forward axis when following

Linear segment

FieldMeaning
DirectionMovement direction vector
LengthSegment length

Arc segment

FieldMeaning
DirectionFrom the entry point toward the arc's center (radius direction)
NormalRotation axis of the arc (defines the arc plane)
Radius lengthArc radius
LengthArc length to travel
Rotation directionSense of rotation around the normal

Segments chain: each starts where the previous ended, so a path is built by appending pieces in order.

Tips

  • Sketch the route as straights + corner radii, exactly as the real conveyor is built, the segment list mirrors the mechanical layout drawing.
  • The movement variable is in path-length units, so PLC encoder positions (already in mm of travel) map 1:1 in Online mode.
  • For products flowing along the path, parent simple objects to the follower or use several line path objects with offset movement variables (a Copy function with an output offset per product).

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