[Above] After the movable stop is on the bar, insert a piece of 1/4 in. dowel into the hole at the end of the bar. This keeps the head from sliding off. The dowel can be glued in, but if it is snug, you may want to leave it be. If left removable, the possibility is open to join two clamps together to make a longer one.
[Above] Take the 1 in. x1 in. x 4 in. piece of wood and drill a 3/8 in. hole down the center about 3 in. deep. Using epoxy, glue it to the end of the threaded rod. After that sets up, your clamp is done. I finished mine with boiled linseed oil.
See the finished project page here [link]
-- Ni faru ion el ligno!