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26th August 2014, 12:26 PM #1Chronic Tinkerer
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- Sep 2013
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- Massachusetts, USA
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- 15
GIS Massachusetts/Maine build (a.k.a. the 'Perpetual July' project)
So after lurking for several months (here, on the WoodenBoat forum and on the Facebook group), I decided that it's time to start my own build thread.
I finally took the plunge and bought the plans for the Goat Island Skiff two weeks ago, collected the plywood (and marked the sides, bulkheads and transom) last week and cut those pieces yesterday. Construction is taking place near Cambridge, MA but, when built, the goat will be spending summers along the coast of Downeast Maine. I'll be using it in waters that I've boated in since I was young, but this will be my first true foray into sailing. Part of my reason for choosing the goat is that it seems to perform well both under sail and (small) motor. My wife is also excited by the prospect of rowing her. I hope to be able to finish much of the construction over the fall and winter, with a first launch in May 2015. So, it looks like the herd of Northeastern Goats will gain another member!
I'm sure I'll have questions as the work progresses (Mik and others have already been helpful on the Facebook group). My next step is to order the epoxy, fiberglass and associated tools so that I can begin to glue up the bulkhead frames. I also need to clean out the garage so that there's actually enough space formagicconstruction to happen.
I'll chronicle the build on the boat-specific section of my blog: http://mixedprotocols.com/blog/category/boats/ and, as Mik suggested, try to cross-post to this thread as well. Looking forward to getting underway!
Cheers,
mxP
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26th August 2014 12:26 PM # ADSGoogle Adsense Advertisement
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27th August 2014, 08:17 AM #2Intermediate Member
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- Aug 2014
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- Massahusetts
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- 25
Hi mxp. I'm just up the road from you in Boxford. I was attracted to the GIS for the same reasons as you. If you'd like to get a sense of it in person, my boat is sitting here in the yard most of the time so you are more than welcome to take a look at it, go out in it, use it, etc. There are a couple small ponds here in Town where it can be launched. I'm nearing completion on the sailing appurtenances and hope to have it rigged soon. I've only read about sailing. I also have a number of tools and a portable planer if you need a hand.
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27th August 2014, 11:48 AM #3Chronic Tinkerer
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- Sep 2013
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- Massachusetts, USA
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Thanks Beaton! I'm really hoping to get quite a bit of work done in the next few weekends (before we begin to feel the fall weather). I might take you up on a viewing of the boat sometime down the line... For now at least, I think I'm set for tools, but we'll see what problems I encounter as I move forward. I'm not a sailor either - I'm building the goat (in part) to learn on, but will likely launch with a small outboard like a 3.5hp Merc (I grew up around small motorboats and bought a kayak some years ago that has seen some limited use).
I'm currently looking at epoxy options -- leaning toward System3's Silvertip line....
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mxP
GIS in Progress
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27th August 2014, 12:09 PM #4
Welcome aboard mxP! The Northeast herd will be happy for the addition. What are your thoughts regarding the sail? Ready made from a reputable source? Sailrite kit? DIY?
I'll be sure to check out your blog as well.
Sent from my iPhone using TapatalkDave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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27th August 2014, 01:06 PM #5Chronic Tinkerer
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- Sep 2013
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- Massachusetts, USA
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- 15
Hi Dave! Heh, Given my extremely limited sailing experience, I afraid I wouldn't know enough about what constitutes a good sail to make my own... I'm thinking that I may go the Really Simple route, but I haven't given it too much consideration yet. With the hull not even 3d, it's sort of a cart-before-horse type of concern right now.
Thanks for the warm welcome! The next few days are filled with non-goat related projects, but I'm planning to spend much of the weekend on it.
--
mxP
GIS in Progress
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27th August 2014, 11:34 PM #6Intermediate Member
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- Aug 2014
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- Massahusetts
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- 25
I used the West System epoxy because it was what I was familiar with. With the fast hardener it works down to 40F. If your garage isn't heated then the lower temp stuff opens up the window a bit to work in the shoulder seasons.
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28th August 2014, 02:15 AM #7
Not necessarily. It's a little circular, but the sail can inform the construction of your spars. I say circular, because you could also provide your spar bend info to a sailmaker to inform their cut and construction of the sail.
The Really Simple Sail is a good way to go for many reasons. Let's assume that's what you end up doing. You would get best results if you made sure your spars flex enough--but not too much--to match the RSS head and foot shapes.
None of this is super-critical of course. But it's good to have future problems to think about when you need a good reason to not do what right in front of you!
keep up the good work and the great blog...Dave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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28th August 2014, 03:47 PM #8Chronic Tinkerer
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- Sep 2013
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- Massachusetts, USA
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- 15
I just realized that I never posted the worklog for last Sunday (8/24). I'd already transferred most of the measurements for the bulkheads, transom and sides from the plans to the plywood, but Sunday was my first day of cutting. First, I needed to draw the curves (the points for which I'd already marked). I used a length of 3/4″ quarter-round molding clamped to 4d nails (which I found had to be driven through the plywood, else they’d pop out under the force of the clamp). My circular saw, with the blade set to extend just below the thickness of the plywood, cut the curves without problem. When cutting the pieces for the second side, I clamped the already-cut piece in place above the uncut piece of plywood, brought the blade down another 6mm, and cut the second piece while cleaning up the edges of the first piece at the same time. I’m happy that my sides (though not yet glued) are virtual mirror images of each other. I didn't take many pictures of the work, but I'm attaching the few that I have.
GIS-20140824-IMG_0182-1024x768.jpg
Marking the chine-edge of the side with a fairing batten
GIS-20140824-IMG_0184-1024x768.jpg
Preparing to cut half of a side panelGIS-20140824-IMG_0185-1024x768.jpg
The back (stern) half of one side panelGIS-20140824-IMG_0189-1024x768.jpg
Clamping sides together for tracing and cuttingGIS-20140824-IMG_0191-1024x768.jpg
Preparing to cut both stern edges at onceGIS-20140824-IMG_0192-1024x768.jpg
All cut: bulkheads, sides, transom and two buttstraps
GIS-20140824-IMG_0194-1024x768.jpg
The workarea (a.k.a. “Driveway’s End Boat Yard”).GIS-20140824-IMG_0200-1024x768.jpg
All cleaned up.GIS-20140824-IMG_0201-1024x579.jpg
Boulter Plywood’s Lloyds Register Stamp
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mxP
GIS in Progress
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29th August 2014, 02:30 PM #9Chronic Tinkerer
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- Sep 2013
- Location
- Massachusetts, USA
- Posts
- 15
I ordered System Three's Silvertip Epoxy, fiberglass tape and a few associated tools from Chesapeake Light Craft yesterday; the shipment should be here by Tuesday. I also bought a couple extra yards of 4oz cloth for added bottom protection near the bow (before the skid-runners start). As I won't have glue for this weekend, I'm planning to cut the bottom panels, pre-cut much of the edge-framing for the bulkheads and, if I have the patience , start to shape the stem.
Looking forward to the long weekend,
mxP
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30th August 2014, 12:12 AM #10Intermediate Member
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- Aug 2014
- Location
- Massahusetts
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- 25
I've seen the system 3 stuff around but have never tried it myself. Looked it up and the page I found said the silver tip is for wetting out glass, coating etc. and down to 35F without blushing which wound be great! Are you using another type for glueing up?
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30th August 2014, 07:04 AM #11Chronic Tinkerer
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- Sep 2013
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Most of what I've read suggests that the System3 Silvertip epoxy is slightly thinner than others (which is why it's better at wetting out glass), but it can be mixed with fillers (silica, wood flour, etc...) using the same basic proportions as other epoxy systems and cures to the same strength. Duckworks "Premium" epoxy kit for the GIS includes Silvertip resin, hardener and silica. My plan is to use it with MAS Cell-o-fil.
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30th August 2014, 09:24 AM #12
I used Silver Tip for the coating but went with System Three's adhesive product for the gluing, including a couple tubes for the caulk-gun dispenser. I used their filleting goop too. I bought but never used the fairing product.
The one thing that's inconvenient is that the ratio is 5:1. It makes it tougher to mix small batches. I strongly recommend buying a small kitchen scale. I used a cheapie plastic dial scale because I had one already. But a digital is not crazy expensive and if not ruined with epoxy is actually a good kitchen tool.
Sent from my iPhone using TapatalkDave
StorerBoat Builder, Sailor, Enthusiast
Dave's GIS Chronicles | Dave's Lugs'l Chronicles | Dave's StorerBoat Forum Thread
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30th August 2014, 10:11 AM #13Chronic Tinkerer
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- Sep 2013
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- Massachusetts, USA
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- 15
Yeah -- I have a small digital scale (this model) that I bought when I got into homebrewing (to measure hops, grains, etc...). It has a 1000g limit (~2lb), but I think it should be okay for mixing up small batches of epoxy. I was planning on lightly draping some plastic wrap over the scale for protection...
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mxP
GIS in Progress
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1st September 2014, 11:16 AM #14
Howdy,
There shouldn't be any trouble wetting out glass in the sizes and weights we use with any well known resin.
And the goat has so little glass anyhow.
The comments about wetting out are aimed at much heavier cloths such as the heavy and separate layered stitched cloths like biaxial and triaxail, where the resin tends to stall on the way through all the layers.
MIK
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2nd September 2014, 11:09 AM #15Chronic Tinkerer
- Join Date
- Sep 2013
- Location
- Massachusetts, USA
- Posts
- 15
Labor Day weekend passed too quickly. As the epoxy I ordered won’t arrive until tomorrow, I spent this weekend doing prep work for the goat: cleaning the garage, precutting the frames for bulkheads 1 and 2 and, perhaps most importantly, staining the exterior of the side panels. For this, I chose Minwax’s water-based stain (after reading West System’s test of epoxy adhesion over a variety of stains). My plan is to lightly sand the stained panels with a fine sandpaper and precoat with three coats of tinted epoxy before assembling the hull (masking the top and bottom edges of the sides to allow for the gunwales and bottom tape).
Cutting a part of BHD1′s frame
GIS-20140830-IMG_0205-1024x768.jpg
Cleaning up the edge of BHD1 with a planeGIS-20140830-IMG_0207b.jpg
Cleaning up the edge of BHD1 with a planeGIS-20140830-IMG_0208-1024x768.jpg
Preparing to stain the exterior of the side panelsGIS-20140830-IMG_0209-1024x768.jpg
The side panels after the first coat of stain (the color is darker in reality)GIS-20140830-IMG_0211-1024x768.jpg
The side panels stacked for drying (I later painted the edges where the sides will be butt-joined)
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mxP
GIS in Progress
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