Creo Interactive Surface Design (Style) > Surfaces > To Establish a Connection while Creating a Surface
To Establish a Connection while Creating a Surface
1. Make sure that the Style > Surface tab is open.
2. To select a connection type, do one of these things:
Move the pointer over a connection symbol, right-click, and choose a connection type from the shortcut menu.
On the Constraints tab, select a connection row, and then under Condition, click the arrow and select a connection type from the list.
These are the connection types:
G0 - Position
G1 - Tangent—Available only when the boundary has a neighbor.
G2 - Curvature—Available only when the boundary has a neighbor.
G3 - Acceleration—Available only when the boundary has a neighbor, and when the surfaces are boundary surfaces or loft surfaces.
Normal—Available only for a planar boundary.
Draft
If you choose G0 - Position or Normal, the connection is created.
3. If you choose Draft:
a. Select a draft reference. The connection is created with a default draft angle of 10 degrees.
b. To change the draft angle, double-click the value, type a new one, and press ENTER. The draft angle is modified.
4. To add or change the reference for a surface connection:
a. Click the Constraints tab.
b. In the Connection table, select the row of the connection to edit.
c. Click the Connection reference collector to activate it, and select a surface or plane reference.
d. If needed, click to reverse the connection:
G0, G1, G2, and G3 connections—Switches between the follower surface and the leader surface, so the leader will be the follower, and the follower will be the leader.
Normal connections—Reverses the normal direction.
Surface connections cannot be edited in Reparameterization mode.
5. For loft surfaces, to define a stretch coefficient value for the connection, do one of these things:
Drag a handle
a. To display the stretch handles, do one of these things:
On the Surface tab, click Show Stretch Handles.
On the Constraints tab, select the Show stretch handles check box.
b. Drag the stretch handle.
Define a value
Do one of these things:
Type a stretch value in the graphics window.
Use the Constraints tab:
a. On the Constraints tab, under Connection, select the row of the desired connection.
b. Next to Stretch value, enter a stretch coefficient value.
c. Optionally, to expose the stretch coefficient parameter value so it can be edited outside of the Style environment, click .
A stretch value of 1 means no stretch to either direction.
A negative stretch value flips the stretch direction.
The stretch value cannot be 0.
Examples
The stretch value is being applied to the connection between the left and the middle surface.
Stretch value 1 (no stretch)
Stretch value 3
The middle surface follows the tangent direction longer.
Stretch value -3 (negative)
The middle surface goes in the opposite direction of the tangent, folding under the left surface.
6. Click OK.
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