Creating chamfers between two original curves
To create a chamfer curve:
The NURBS object must contain at least two curves.
A chamfer curve is created. Changing the position or the curvature of either parent curve can change the chamfer as well.
The parent curves must be coplanar. The chamfer is not necessarily connected at the endpoints of the parent curves: you can adjust its position with the chamfer's Length parameters.
The lengths are the distances from the intersection (or apparent intersection) at which the chamfer segment is drawn.
The distance along the first curve you click.
This parameter is animatable.
The distance along the second curve you click.
This parameter is animatable.
Some length values make it impossible to construct the chamfer. If you set the length to an invalid value, the chamfer returns to a default position and is displayed in the error color (orange by default).
These two groups let you control how the parent curves are trimmed. The controls are the same in each. "First" and "second" refer to the order in which you picked the parent curves.
Flipping the direction of a trim
When on (the default), trims the parent curve against the fillet curve. When off, the parent isn't trimmed.
When on, trims in the opposite direction.
Change the U location of the seed value on the first and second curves. If there is a choice of directions, the direction indicated by the seed points is the one used to create the chamfer.
The lengths are the distances from the intersection (or apparent intersection) at which the chamfer segment is drawn.
The distance along the first curve you click.
The distance along the second curve you click.
Some length values make it impossible to construct the chamfer. If you set the length to an invalid value, the chamfer returns to a default position and is displayed in the error color (orange by default).
These two group boxes let you control how the parent curves are trimmed. The controls are the same in each. "First" and "second" refer to the order in which you picked the parent curves.
Flipping the direction of a trim
When on (the default), trims the parent curve against the fillet curve. When off, the parent isn't trimmed.
When on, trims in the opposite direction.
Change the U location of the seed value on the first and second curves. If there is a choice of directions, the direction indicated by the seed points is the one used to create the chamfer.
Let you replace the parent curves. Click the button, then click the curve to replace the original first or second curve.