Tampilkan postingan dengan label filler. Tampilkan semua postingan
Tampilkan postingan dengan label filler. Tampilkan semua postingan

Selasa, 27 September 2016

How We Did It


Boys Trip 2006 055
Originally uploaded by OzzyC.
Our construction process was precise yet simple. Engineer-boy took the measurements and did the conversion mainly with things he already had laying around his garage... plywood, 2x4s, wooden dowels, ratchet straps, hose clamps, lag bolts and so forth. About the only parts he needed to buy were the flagpole that we used for the mast, and the tarp that he cut to the shape of a sail.

When we got to the reservoir, we spent the first two hours or so assembling the catamaran. By the time we finished the construction, got to camp, set up the tent and ate, it was time to go to bed. Additionally, the maiden voyage from the landing to the island occurred on a day with almost no wind. We were able to make our way to the island, but it was slow going. Our real test would have to wait for another day.
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Rabu, 07 September 2016

Glassed Rear Transom


Yesterday we glassed the rear transom. After we glass the front transom (which we plan to do next weekend), well be done glassing the exterior. Then comes the fairing.

Weve gotten pretty good at laying glass, and have devised a method that lets us lay two layers at once. The first time we did it was a little tough, but through a little trial and error, weve got it down to a science. By doing two layers at once we are saving time and I think well have a stronger boat, because laying two layers at once will give us a single chemical bond in addition to the physical bond. It also seems to cut down on the amount of sanding we need to do.



Heres a picture of the glassed side (which we did last week). We glassed the side using the aforementioned both-layers-at-once method, and Im quite pleased with the results. Glassing the side took us about four hours using this method, and the rear transom took about two hours.

Our double layer method consists of measuring the glass cloth and laying them in place, and laying a coat of epoxy thick enough to saturate both layers of glass. The horizontal surfaces are very easy, but the vertical surfaces are a little more tricky. Weve found that its best to use a roller to work a thick layer of epoxy into the glass at the top, and then slowly squeegee the excess down the side. Make sure to do this very slowly, so the epoxy has a chance to saturate the cloth as you go down. If the epoxy is rolling down the surface as you use the squeegee, youre moving too quickly.

One note: I do NOT recommend doing this double-layer method unless youve got two people for the task.
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Minggu, 21 Agustus 2016

Fiberglass Filler


Patched Hull
Originally uploaded by OzzyC.
Heres a picture of the fiberglass-filled patch. You see that Greg used epoxy filled with fiberglass particles, which he used to fill the areas he cut out, and blended in with the glass cloth. The strength is solid, and it will undoubtedly work better than the original plan of injecting epoxy into small holes. Its a little more work, but we both agree that its worth it.
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