formed fabric is determined by the pre selected array of the warp yarns in fig1 7 a 5 u00d7 5 square array has been selected for this array six yarn guides are positioned in both x and y directions in general for an n u00d7 m array n 1 yarn guides are needed in one direction and m 1 yarn guides are needed in the other in this manner the warp yarns are woven to both the x and y yarns alternatively the last guide yarn in either the x and y direction may be omitted the warp yarns may be formed into any desired array for example they may be arranged to form a fabric having a square rectangular l shaped u shaped or h shaped cross section these various alternatives are shown in fig8 a h of course the former bed yarn guides and needles must be laid out accordingly a drive mechanism 90 is provided preferably underneath 12 as a motive means for operating the different members of the device as shown somewhat schematically in fig9 the mechanism 90 comprises a motor 90 which turns shift 94 at a continuous speed mounted on the shaft are a plurality of cams 92 for activating each element the cams are mounted on the shaft at a predetermined angle so that each element is operated at the proper time cams 92 are operatively connected by rods such as rods 96 in fig1 to the respective elements such as the yarn guide assembly 26 to convert the rotational movement of the cams into corresponding translational i e horizontal or vertical oscillational movement of the respective elements for the x and.