thanks for showing the jig...looks like it has a 5/16 nut in it to hold the pencil? Same as eric krewson's tillering gizmo?
Question about your steampipe: is it sealed at both ends? Or are there vent holes to allow steam to escape (and thereby draw more steam in)?
This weekend i plan to make one of those out of pvc piping, with a T in the center, a cap on one end, and a clean-out at the other end. Should i drill a couple 1/4" holes or so? One at each end?
thanks,
radius