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Updated materials


posted 2003 Oct 29

Materials I'll need from John R. Sweet. The first section is all the materials from Bram's Swift materials list. The second section is stuff I also will use.

Everything apparently comes shipped on separate spools.

[Update 2006 Nov 9: see also my updated comment here.]

QtyDescriptionURLInfoPriceTotal
22 - 4.35 gallon containers West System epoxy (4.35 gal = 16.47L)go105-C228.00456.00
22 cans - 205-B hardener (27 oz = 0.86 qt = 0.80L)go205-B24.0048.00
22 cans - 206-B hardener (27 oz = 0.86 qt = 0.80L)go206-B24.0048.00
11 can - 207-SB special coating hardener (42 oz = 1.32 qt = 1.24L)go207-SB46.0046.00
1dispensing pumps for epoxy and hardenergo3009.009.00
11 large container (20 oz) WEST 403 microfibers go403-B15.0015.00
11 large container (12 oz) WEST 407 fillergo407-B10.0010.00
11 large container (6.0 oz) WEST 406 colidial silicago406-B8.008.00
14” plastic spreader (dozen)go 4.004.00
 2 dozen 2” disposable paint brushes  12.0012.00
 2 dozen 1” disposable paint brushes  12.0012.00
1100 mixing sticksgo 1.001.00
22 / 50 yard rolls 1” e-glass tapego 9.0018.00
22 / 50 yard rolls 2” e-glass tapego 15.0030.00
1010 yards 10 oz e-glass for cradlegoweave 1800-60"7.4074.00
2020 yards 50” wide 9oz. S-glass 8 harness satin weave
20 yards 50” wide 6oz. (see here) S-glass 8 harness satin weave
goweave 6580-50"7.50160.00
2424 yards 50” wide 5.5 oz. carbon/Kevlar hybrid twillgoweave 94905-50"21.00504.00
11 / 50 yard roll 2” uni-directional carbon tape (for hull, deck and rudder stock)go 70.0070.00

Other materials I'll need
1Blue nitrile gloves: M, L, XL, box of 100go 11.00 
1MSA Ultra-Twin full-face respirator go 75.00 
1#9441, 9½” bent shear sharpened for Kevlargo 11.00 
11 large container (12 oz) WEST 423 graphite powdergo42310.00 

Possible stuff for later
5Tyvek suitsgo 5.00 
1Grooved aluminum roller, 1” x 3” length, straight cylindergo 8.00 
110 plastic squeegees, 6” wide, one dozengo 8.00 

Benchbuilding


posted 2003 Oct 28

I've been building my bench over the past few weeks, and it's great fun. I've been cutting, drilling, gluing, screwing and sanding. I'm having a blast. The instructions are very easy to follow, you only need a saw, drill and screwdriver to build it (no router, like Max's bench would have required), and it's heavy and built like a tank. The bench top is two laminated sheets of 3/4" ply which you can ding up and replace when needed.

Other bits and pieces:

Imperial sucks. Here's some translations for you imperial challenged:


1 quart = 32 fluid oz
1 gallon = 4 quarts
1 pint = 2 cups
1 quart = 2 pints

I've measured the garage bay, it is 10 feet wide, 15 feet deep. The ceilings are 10 feet high. 1500 cubic feet. From that space, it is 23 feet to the door. It will be tight but doable.

On the list, Bram mentioned a few important things:

  • (link) You need a 12 oz can of West 423 Graphite Powder, for the underside of the hull
  • (link) The vang pedestal base has a top diameter of 2" and bottom diameter of 3".
  • (link) The cradle frames sit on stations 6 and 10. It helps to let the glass hang over the front of station 6 a little more (it is not quite centered on the cradle frame by about 2 inches--you can see what I mean in the picture on page 58).
  • (link) The big holes in the bulkheads are 3 1/2 inch diameter and the small ones are 2 1/4. Be sure to seal the edges of the holes.
  • (link) The orientation of the hybrid on the bulkhead material is not critical but it would be better if the carbon ran with the length of the strips (vertically).
  • (link) I just weighed the station 6 bulkhead completed for USA 013. It weighs 1002 grams with all hybrid and epoxy applied.
  • (link) ...your plans will not include a transom bar pattern as indicated in the manual. The transom bar is a simple 72" radius. I decided some time ago not include a pattern for it as it is an additional sheet that is simple to cut. The jig ends up being a piece of 2x6 48" inches long. If you drive a nail in the center of one of your sheets of particle board two feet from one end, you can tack the 48" 2x6 parallel and flush with the other end and use a string to strike the radius. (Here, the 2x6 will be lying on top of the 4x8 sheet, with one long edge flush against the short edge of the 4x8.)

There's an interesting site which came up on the list about building kayaks.

There's another site which talks about sailers on Lake Sammamish; I guess they just held a regatta a few weeks ago. Sounds like fun.

There is a page here which talks about the hazards of a number of woods and how you are sensitized to them.

Sanding done!


posted 2003 Oct 15

Finally, I completed the sanding of all the station templates. I asked the list if I should cut out the holes from the hardboard for the strongback, and Greg indicated it probably wasn't worth it. Instead, I'll drill holes at the corners and on the c/l and w/l, and use either a mechanical pencil or a punch to mark the right spots on the particle board.

Each station took around a half hour, and having exactly 1 mm to sand off made things fast. ;-) By the end I'd started using a dust mask again and brushing off the dust with my brush. Not quite as easy to work, but safer, I'm sure.

(5 images)
img_3258 img_3259 img_3260

Workbenches


posted 2003 Oct 14

Max and I got into a conversation about workbenches, and convinced me a I really needed one, and after thinking about my workflow for the cutting and sanding, he's right (it would have been very nice to clamp those hardboard station molds down to a bench in order to sand them).

It turns out that benches are somewhat of a cottage industry in the world of woodworking. There are the very fancy ones (to me, anyway) and the very basic ones.

I found plans I like here (has a shelf and a couple of drawers, which seems like a good compromise). This site has the same plans for cheaper (you download a pdf) and a number of other bench plans. Popular Mechanics (!) has a well illustrated set of plans for a simple bench. There's a list of more here.

This is the bench Max built, with some commentary so I can figure it out myself:

(12 images)
img_3243 img_3244 img_3245

More sanding of station templates


posted 2003 Oct 12

I realised a few things this weekend:

  • Sandpaper does get dull, and it gets dull fast. It cuts pretty fast when it's sharp. It's like it has a built-in system to control how quickly you remove material.
  • The best edges to sand were the later ones, mostly because by then I was using a lot of adhesive to glue the paper down. That was a good idea. The early stations the patterns separate from the hardboard a bit around the edge, which makes it much harder to sand things down.
  • It's much easier to sand with the straight edge than the curved edge of the sanding block (and forget about putting the sand paper into the slots in the block; when you're changing it every 10 minutes, it's just not worth it). The convex curves were easy to sand down, because the straight edge was usable. The concave ones took more time, especially for the stations close to the bow, where the curves are sharp. For the more gradual concave curves, the straight edge was still faster.
  • When cutting out the templates from the hardboard, a millimeter is about as much as required outside the line, you can take that out quickly.
  • The steps are tricky, and you really need a file to get the edges sanded down enough. The sanding block either takes out too much (usually on the side opposite where you're working) or can't get in close enough to the corner.
  • Wood dust gets all over. Ugh.
(14 images)
img_3186 img_3187 img_3188

Sanding station templates


posted 2003 Oct 10

Next up is to sand the station templates down to the pattern lines. 60-grit is plenty good enough for this, and you'll need a bunch of it; one sheet of 8x10 will do a single large station.

(8 images)
img_3137 img_3138 img_3146
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