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Assembly3_ConstraintPointInPlane.md

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  • GuiCommand: Name:Assembly3 ConstraintPointInPlane Icon:Assembly_ConstraintPointInPlane.svg Workbenches:Assembly3

Assembly3 ConstraintPointInPlane

Description

This tool builds a link between two objects of an assembly and fixes the distance between them and the orientation to each other. The selected elements of each object or more precisely their implicit coordinate systems (ICS) are used to position one object to another.

Assuming the first object is already locked in place by the Lock constraint then the following object is moved to a position where the point element's origin lies on the planar face element's xy-plane.

Point elements have no stretch in any direction (zero length) and so there's no orientation detectable i.e. their ICS are only to match other elements' settings. The orientation of the ICSs always stays the same as the global coordinate system's orientation and can not be used to reduce any degrees of freedom related to rotation.

Related to the first object the following object can still move along the x- and y-axis and spin around all three axes. This is leaving 5 degrees of freedom (DOFs) for each link unconstrained.

Usage

  1. Place two objects into an assembly.
  2. Select one point element of one object and one planar face element of the other object.
  3. Press the Point on plane button.

documentation index > Assembly3 ConstraintPointInPlane