Assembly3 ConstraintArcLineTangent

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Assembly3 ConstraintArcLineTangent

Menu location
Default shortcut
Introduced in version
See also


The Arc line tangent command builds a link between two objects of an assembly. The selected elements of each object or more precisely their implicit coordinate systems (ICS) are used to position one object to another.

Since I couldn't get this tool working here's just the statement of the tool tip: 

Add an "Arc line tangent" constraint to make a line tangent to an arc at the start or end point of the arc.


  1. Place two objects into an assembly
  2. Select an arc element of one object
  3. Select a line element of the second object
  4. Press the Arc line tangent button.

Depending on the order of the selected lines following errors appear:

Constraint "ArcLineTangent" requires the 1st element to be a circular edge
Constraint "ArcLineTangent" requires the 1st element to be an arc edge