How to use the Tabby Jack as a warp tensioner
Place the Tabby Jack beside your loom with the heddle placed in neutral. Align the Tabby Jack so that it is level with the top of the heddle.
Insert the dowels in the holes and place the washer on the other side.
Secure the Tabby Jack with rubber bands
Direct warp your loom. Tie a bow several inches away from the peg.
Take the warp off the peg and form a chain. Place this chain over the top of the heddle towards the warp beam.
Place the rods so that the warp goes over the heddle, under rod 1 and over rod two. Spread warp out evenly. Secure with a band on the Tabby Jack ears
Wind on your warp. The heddle and rods will apply an even tension. When you get to where you tied a bow, stop. Remove the rods and Tabby Jack and continue to setup your loom as needed for weaving.
Video demo of how to use the Tabby Jack as a warp tensioner