Boat Building

Making Scarph Joints in Plywood Panels

When your plywood sheets aren't long enough, they must be joined end-to-end.

Butt joints aren't strong enough. Backing blocks can cause problems when you try to bend the panels. CNC-cut puzzle joints work great – if you have a CNC cutter. So the good old scarph (scarf) joint is the standard solution.

Here's how to make one.

Crossbeam bits & pieces

Progress on the Starwind 860 prototype continues. It does seem, however, that I've fallen behind in posting updates about the boat.

The aft crossbeams are nearly done; they still need the fibreglass tape on their outer edges and a final fairing coat before painting.

The front crossbeams now have their upper mid-beam structure installed and are ready to be closed in. That task will probably take place tomorrow.

Back On Track

Our little hiatus is over. We're settled in, the essential work is done, and it's time to get back to the boat.

The next thing on the Starwind 860 build schedule is to finish up the crossbeams. Today, with perfect weather and (for the first time ever) plenty of space to work, we laminated the lower flanges of both forward beams.

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