Sampson Boat Covideo
Building Boat Frames using Traditional Tree-Nails - Rebuilding Tally Ho EP28
August 11, 2018 · 23 min · 564K views · Sequim, Washington
What this video covers
Leo Goolden cuts and assembles the first sawn frames for Tally Ho, a 108-year-old British gaff cutter undergoing full rebuild in the Pacific Northwest. Each frame is built up from multiple futtocks of Oregon white oak, rough-cut on a ship saw with continuously varying bevels; volunteer Ruben operates a hand-cranked tilt mechanism to match bevel angles called out by Leo as the piece feeds through.▶ 6:17 Futtock faces are primed before assembly to block rot at joints, with roofing tar applied over checks and small knots.▶ 9:04 Tally Ho's original frames were fastened with iron pins, which contributed to their decay; Leo replaces them with 7/8-inch black locust trennels (tree-nails), driven through holes bored with a ground-down auger bit and locked with cross-grain wedges.▶ 10:14 Black locust is chosen for its hardness, rot resistance, and straight grain, which allows clean dowel production using a modified tenon cutter.▶ 11:01 A centreline datum is established by measuring to the keel centerline and projecting it upward with plumb bobs to two independent string lines — one fixed to the shed, one to the boat — so frame placement can be checked against the keel regardless of any movement.▶ 3:35 Ferrous fastenings in wooden frames accelerate rot; non-ferrous trennels also allow planking fastenings to be drilled anywhere without risk of hitting hidden metal.▶ 10:44
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