Abstract
In this report, we show the following acknowledgments of present study. The first, IsoTruss grid structures have been formed with carbon/epoxy FRP materials with helically filament-winding (FW) method. The next, influence of the tetrahedron region (pyramidal grid in this structure) on mechanical properties are measured. The third, for the applications of this structure the Christmas tree tower was constructed at campus of Kusiro N. C. T. with connected half a dozen pieces.
