Place Cross-Sections

3-D FFS > From c-edges > Framew. > Place cross-sections

Placing cross-sections on up to three guidelines creates frames from which freeform surfaces or polyhedral surfaces can be derived. This also enables several cross-sections with the same or a different number of composite edge points to be placed. The guidelines are 3-D composite edges, while the cross-sections are 2-D polylines.

Generally, both guidelines and cross-sections will exist as continuous lines, as only the points of the frame, but not the curves between the points, are used to generate the freeform or polyhedral surfaces. However, it may make sense to use 2-D cross-sections, e.g. with circles, in order to rework the created frame body. Curves on a guideline, however, are pointless.

When you select the function, the Place cross-sections dialogue window will be displayed. This window is divided into 5 areas. The selected setting is indicated by means of a coloured symbol.

Proceed as follows:

1. Select the number of guidelines.
2. Select the required scaling option.
3. Select the construction method for 3-D guidelines.
4. Select the construction method for 2-D cross-sections.
5. Select a method for the setting of cross-sections.

Once you have selected the method, the actual function dialogue starts. This depends on the settings you have selected in the dialogue window.

Notes:

• Each frame is created as a general dummy part called CKOMPnn, where nn is a consecutive number that is automatically assigned by HiCAD. This part contains the sub-parts:
• FRAME (with the placed cross-sections)
• C1 (the first guideline)
• C2 (the second guideline)
• C3 (the third guideline).
• If the active part already contains a frame generated using the Place cross-section function, this will be indicated by an appropriate message. You can then delete the existing cross-sections and place a new cross-section or enhance the frame by placing a further cross-section.

Working with Cross-Sections (3-D FFS) • Interpolate Cross-Sections (3-D FFS) • Polyhedral Surfaces (3-D FFS) • Overview of Functions (3-D FFS)