By March 2006 it was time to start with the framing. First of all the backbone had to be scarfed and glued before installation. One of the lessons learned by now was that one must not use epoxy that is thickened too much. This will produce a so called "dry joint" and will not produce a strong bond into the wood. Furthermore, once clamped, be sure to leave the clamps on for at least 48 hours. And if the clamps are to be removed before 7 days, do not place the joint under stress for at least 7 days. The epoxy reaches maximum strength only after 7 days.
The backbone, from the raw wood to finished and installed took 20 man-hours.
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Scarfed and ready for the glue |
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Clamping while epoxy is setting. |
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Tapering the backbone to fit into the bulkhead slots. |
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Backbone glued onto the bulkheads. |
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