details of indonesian loom

I love the carved pieces that serve to clamp the circular warp. Beyond the heddles and shed rod, the warps that had been tied and dyed were clamped between two sticks and wrapped. The wrappings seemed to separate the warps nto the sections that had been wrapped. I am wondering if the wraps also serve to squeeze the warp threads into groups and therefore help stop the from moving excessivley.and blurring the design too much.