Tampilkan postingan dengan label prep. Tampilkan semua postingan
Tampilkan postingan dengan label prep. Tampilkan semua postingan

Sabtu, 12 Maret 2016

Skeg prep

Some prep work was the next task, before attachment of the skeg. After being glued together, the skeg has sat untouched. Before attachment, it needed to be sanded to remove drips of epoxy that has squeezed out from between the two layers, as well as evening up slight mismatches between the halves. Next, the edges were finished off with a router and roundover bit. A brief check showed that the mating surface contour fit the curve of the hull fairly closely. Tomorrow, woodscrews will be countersunk ahead of the final installation of the skeg. Total hours 64.25.
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Sabtu, 05 Maret 2016

Glassing prep

With my increasingly busy schedule, time management is important to allow reasonable boatbuilding progress. After a commute home that is slower and more frustrating every day (a disadvantage of living in the fastest growing county in the state), a return to a workout regimen, a quick dinner, and some household administration, perhaps an hour or so is left every evening to further the Passagemaker dinghy boatbuilding. Now that the next step of glassing the hull has arrived, I needed to finish some prep work tonight in order to complete the glassing in one evening. First was a return to the tedious job of sanding. Filled stitch holes, stray drips of epoxy, and previously unsanded bottom panel scarf joints needed to be tended to. Since only the bottom panel is glassed on the exterior, the adjacent #1 strakes needed to be sanded smooth so they could be masked with tape. This prep work took the better part of tonights effort. And while doing it, I was reminded of an old TV commercial. Readers of a certain age might remember the sudafed commercial that featured Apollo astronaut Wally Schirra. While holding up a space suit helmet he asks, "Ever sneeze in one of these?" I seem to have acquired a mid-winter sniffle, and my nose continued to drip inside my respirator as I sanded.

After the sanding, I masked of the border of the bottom panel to prevent epoxy runover tomorrow. I then test fitted the fiberglass cloth, and it turned out to be a simple matter to lay it over the hull and smooth out the wrinkles. The cloth is a very loose weave, and is easily smoothed, with only a little care required to avoid snags and runs on the few remaining stitches that hold the bulkheads in place for now. Thus, all is in readiness for tomorrow. If I get an early enough start, I can apply the epoxy to the glass cloth (which will make it clear) and let it partially cure so that late in the evening, I can trim the cloth to its correct dimensions and remove the masking tape. Thats the plan, anyway. Total hours 39.75.


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Senin, 29 Februari 2016

Interior glass prep

Once back from a morning in the lab, I turned to the task of preparing for glassing the interior. As for the exterior, this involved some sanding. Actually, considerable sanding, in order to clean up some drips of epoxy that had worked through the stitch holes from the exterior. Also, I hadnt yet sanded the scarf joint on the center panel, so that got smoothed out. Once the bottom panel and first strake were clean and ready for glassing, I vacuumed out the interior (I have got to get a shop vac). Then the joint between the first and second strake was masked with packing tape to protect from epoxy overruns.
I also prepared some other parts for tomorrow. With any leftover epoxy from the glassing operation, I can glass the interior of the daggerboard trunk. Since I had already coated these parts with epoxy, I sanded in down and left a rough finished surface. I trimmed some glass cloth scraps to size. I plan to lay the cloth on the parts, then when the epoxy has reached gel stage, Ill use the daggerboard spacers as a template to trim the edges. Thus, the glass will only be on the interior trunk face, while the overall dimensions of the assembled trunk wont be increased by the thickness of the glass. I also have on hand some other parts, ready to be assembled with excess epoxy. Mainsail boom, mast joint and masthead cap, daggerboard handle, and skeg are ready to go.
Finally, I checked out the sails: 77 square feet of Dacron (?) cloth, complete with grommets, telltales, and battens. They look great- I cant wait to try them out! Total hours 44.00.

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