Quote:
Originally Posted by FLexpat
Absolutely right if the columns get put in after the core is laid up - if you put columns in after the core gets laid up then you need to make sure not to drill through the exterior skin and also make them smaller in OD than your washers on the inside. If you are going down that route you can also use fiberglass washers or plate glassed in on the inside (if there is enough room) and still keep larger diameter columns. You would still need the metal washers though.
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I think you are right about embedded columns of fiberglas/garolite, although the transition from column oriented fibers to in plane might be interesting to think about. I am a fan of a channel as a washer to spread the load under the less stiff glass and core.