This lashing is also known as Gyn lashing Tying: Place an item such as a log on the ground to support the spars. Place one spar with the bottom end facing in one direction on top of the item. Then, place the next spar on top of the item, but with the bottom end facing in the opposite direction. Finally, place the last spar next to the middle spar.
Then, tie a clove hitch or timber hitch on one spar on either side. Bring the rope either on top or below of the middle spar; then bring the rope either below or above the last spar (if the rope went on top of the middle spar, it goes below the last spar, and if vice-versa, then the opposite is done). Bring the rope back around in the same alternating manner. After three or four turns, start to frap by wrapping the rope around one section of rope between the first and middle spar three or four times. Bring the rope to the other section and repeat. Then, tie a clove hitch on the last spar. To erect the tripod, turn the spars upright. Then move all spars as far away from each other as possible. Bring them closer to adjust the height and stability of the tripod. To improve stability, one may wish to lash spars to each tripod leg in order to support them better.