An improved method for the manufacturing of wavy pre-preg material that moves a first group of rollers in a transverse and a longitudinal direction with respect to a second group of rollers, to place a sinuous waveform in a fiber reinforced matrix for the manufacture of a wavy pre-preg material. The fabrication of wavy fiber pre-preg (fibers pre-impregnated with epoxy resin as an example) can be accomplished with an automated control system that permits the creation of non-periodic or mixed waveforms. The improved apparatus for this process allows for a more accurate placement of fibers, production of a wider variety of usable waveforms, and increased quality of pre-preg produced.
CROSS-REFERENCE TO RELATED APPLICATION
This is a division of U. S. application Ser. No. 09/443,232, filed on Nov. 18, 1999, now U.S. Pat. No. 6,453,962, which was a continuation-in-part of U.S. application Ser. No. 08/970,141, filed on Nov. 14, 1997, now U.S. Pat. No. 6,048,426, and also a continuation-in-part of U.S. application Ser. No. 09/238,873, filed on Jan. 27, 1999, now U.S. Pat. No. 6,287,664, which claims the benefit of U.S. provisional application Ser. No. 60/072,975, filed on Jan. 29, 1998.
