If you have a number of stringers which form a regular pattern on the hull, it may be easier to duplicate an existing stringer rather than drawing or generating stringers.

To duplicate a stringer or stringers

Ø        Select the stringer or stringers to be duplicated

Ø        Choose Duplicate Stringer from the Stringer menu

A dialog box will appear with fields for the number of stringers and their spacing

Ø        Enter the number of duplicates and the spacing

Ø        Click a radio button to indicate how the stringers are to be spaced

Ø        Click the OK button

The spacing of the duplicated stringers may be different at the forward from the aft end of the stringer. This allows you to taper stringers or fan them out as the girth changes.

You can duplicate the stringer by position, offset, height (longitudinal, transverse and vertical directions respectively) or girth. You may enter a negative spacing to space in the reverse direction.

Duplicating by girth means the stringers will be spaced around the girth of the currently visible surfaces.

The highlighted stringer has been duplicated 8 times with a girth spacing of -0.3m at each end.

Duplicating by position means the stringers will be spaced in the longitudinal direction.

The highlighted stringer has been duplicated 8 times with a position spacing of 0.45m at each end.

Duplicating by offset means the stringers will be spaced in the transverse direction.

The highlighted stringer has been duplicated 4 times with a offset spacing of 0.3m at the aft end and 0.15m at the fwd end.

Duplicating by height means the stringers will be spaced in the vertical direction upwards from the original stringer.

The highlighted stringer has been duplicated 5 times with a height spacing of 0.3m at each end.