Sven Yrvindvideo
Making parts for the crank
January 10, 2026 · 5 min · 1K views
What this video covers
Sven Yrvind fabricates custom hardware for the re-wing system on his small, shallow-draft boat intended for a 14,000-mile nonstop Southern Ocean voyage.▶ 0:15 He constructs long mounting screws from threaded rods, using washers as spacers to compensate for varying lengths and material thickness.▶ 0:45 To ensure a precise fit, he grinds down the wood mounting surface to accommodate the screw length.▶ 1:21 He removes the plastic coating from the aluminum extrusions, noting that the protective layer is unnecessary for his specific mast design.▶ 3:53 To secure the crank lever to the extrusion, he installs two screws per side and plugs the bottom with glass fiber.▶ 4:29 He then pours epoxy into the assembly to create a permanent, structural bond between the lever and the extrusion.▶ 4:37 Each custom-fitted screw is marked for its specific hole to maintain alignment during final assembly.▶ 2:01
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