|Make your selections in the Snap
Align: You can increase distance
between the two resources, but if you change the alignment the slave will
snap back to the original alignment. In the image below the distance is
increased but the alignment remains the same.
Face: The two resources
will maintain the face if you move one of them. In the image below the two
maintain the same face, though the alignment has changed.
Orientation: The two connectors
will maintain the same orientation if you move them, i.e. the red arrows
visible in the connectors will align. It is therefore important to make
sure that the red arrows in the connectors are pointed correctly and
oriented correctly with reference to the part. The red arrow is usually set
to the "Up" position of the resource, which means that on both resources
they should point in the Up direction. If the red arrow points "down" in
one resource and "up" in the other, then the resources will snap together
incorrectly. You can toggle the position of the red arrow by clicking on
the green arrow that is parallel to the plane.
Fix in space: If you select this
option the position of the master resource is fixed - if it is moved it
will snap back to its original position.
Attach: Checking this option allows you to
attach the two objects.
Place manipulator at snapped location: Check this if you want
to rotate the snapped object after placing it. The manipulator is placed on
the object if you check this. You can then click on the bottom curve of the
manipulator (see image below) and rotate the object. It will rotate in
increments, based on the value entered in the Snap Angle field. In the
image above it is 45 degrees.