Machinery TwinDocs

Closed path object

Motion around a closed loop, carousels, chain conveyors, rotary tables.

A closed path object travels around a stadium-shaped loop: two straight sections joined by two semicircular ends (set the straight length to zero for a pure circle). One variable drives the position around the loop.

Parameters

ParameterMeaning
Movement variableDrives progress around the loop
Linear length 1 / 2Lengths of the two straight sections
Linear directionDirection vector of the straight sections
Radius directionDirection of the radial offset (defines the loop plane together with the linear direction)
Radius lengthRadius of the semicircular ends
Rotation enabledObject rotates to stay tangential to the path
SeriesRender N evenly-spaced copies around the loop

The series field

Set series to the number of carriers and one object becomes the whole circulating chain, every copy spaced evenly, all driven by the same variable. This is the one-object answer to chain conveyors, carousel fillers and rotary tables with tooling stations.

Driving it

The movement variable wraps around the loop, so a MasterTime function with matching min/max gives continuous circulation. In Online mode, map it to the PLC's line-shaft or carousel axis position, see Mapping PLC tags.

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