Entre Terras e Mares · video

What this video covers

Edgar installs the propulsion shaft on his Allegro Vivace sailboat, tackling a custom drivetrain layout that required a CV joint (junta homocinética) because the engine must sit horizontal rather than angled to match the shaft.3:10 Fabrication shop Dickman produced the shaft, bearing housing (mancal), and a flange adapting the CV joint to the motor shaft; the bearing mounts in a laminated structure inside the hull, with a Volvo-pattern shaft seal chosen for its compact footprint.4:31 The central problem in this session is a bronze bushing that refuses to seat in the shaft tunnel: welding the tunnel's internal support bracket earlier deformed the tube, tightening the bore.15:56 Edgar spends five to six hours grinding the 51 mm stainless-steel 316 tube with sandpaper, fabricates a wooden sanding tool sized to roughly 49–50 mm using a hole saw, and attempts repeated lubricated hammer-drives.23:12 The bushing stops about one centimeter short of full seating by the end of the session.24:39 Edgar confirms in a closing note that it eventually seated well enough to continue assembly, covered in Part 2.25:52 Welding internal tunnel fittings after final machining risks bore distortion that can block press-fit components.

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