This is a thin blade held at tension by a pair of vertical frame bars and horizontal cross beam and kept at tension by means of a cord or other tension device. These can be packed in lightly (just the blade) to remote locations and then assembled from localwood once there.
To get certified for this BB provide photos or video (less than 2 minutes) showing the following:
- Your chunks of wood and the blade that you are starting with
- Progress about halfway through, not yet assembled, with the hand tools you have decided to use for this
- Final product fully assembled