The height position of the heald (i.e. the heald tolerance) is adjusted according to the different weaving patterns and different wire mesh specifications.
(1) General requirements for the location of the heald height:
1) When weaving plain wire mesh, high weave is generally used, which means that the warp position line is higher than the warp straight line when joining strands (i.e. the heald tolerance is negative).
2) The height of both ends of the same page of the heald must be the same.
3) When weaving twill or satin wire mesh, generally use flat heddle weaving, that is, when the merging stranded warp position line overlap in the warp straight line (i.e., heddle tolerance is 0).