November 5, 2014 § Leave a comment
It’s hard to believe that I’ve done little with this blog or the build-in-progress for over a year. Ah, well, that’s about to change because circumstance has dictated the need for some wood and fiberglass therapy. When I left off, I was in the process of filling the football. Since then, the canoe has been fiberglassed moderately successfully (only a few air bubbles), and the external gunwales have been attached.
I’ve done the inner gunwales differently in the past. For one boat, the inner gunwale had no scuppers, for another, I used a 1/4″ strip of cedar with 1/4″ blocks every 3 inches or so. For this one, I decided to use another technique designed to justify the acquisition of a drill press. A picture is worth a thousand words, so here it is:
It looks a bit rough, but with a bit of sanding, the suppers came out brilliantly.
This time around, I employed some actual planning and forethought to mark down where the yoke and seats would be attached. If these points occurred where a scupper would be positioned, I simply left the scupper out. In other words, the gunwale has sections where the 3″ scupper – no scupper spacing is broken. I’ll show a picture in the next post. I thought it would look goofy, but it ended up looking more like the builder exercised actual planning and forethought.
March 3, 2013 § 3 Comments
Just a quick post to show how I’m filling the football. Instead of running alternating light and dark cedar strips parallel to the centerline, this time I’m running alternating light and dark strips both along the centerline and the edge of the football to form a continuous dark line that decreases as the football grows smaller. I’ll post a picture when I’m done (it’s hard to explain), but the picture below shows the progress thus far.
February 26, 2013 § Leave a comment
At long last the canoe is at the point of the build called the football. At this point it’s advisable to measure from the edges of the strips to the center of the forms to make sure that everything built up evenly. If something is off, this is the time to adjust for it. Fortunately, this build treated me well and everything was even.
Many builders choose to fill one half of the football with arcing strips, cut along the center line and then fill the other half. The method I prefer, partly because I can’t trust myself to cut a straight line, is to run a pair of strips down the center line and then fill the halves. In the past I’ve used this technique to alternate light and dark strips that run the length of the football. To people who haven’t seen me in a canoe, I call these racing stripes. This time, I’ll try something a little different. Less racing. More zen. Stay tuned.
The following picture shows the pair of strips run along the center line and the use of bungee cords to keep the strips tight against the forms.
February 18, 2013 § 3 Comments
The picture below contains a couple of items that I want to touch on.
The first is the inset of the bird, done in a darker cedar than the surrounding strips. Besides being an attractive feature, the inset effectively integrates joints into an overall design. The fact that grain and color don’t match (a concern when joining strips) becomes desirable. In this way, I’ve been able to do most of the sides of the canoe without obsessing about how good the joins look.
The picture below also shows the use of 1/4″ dowels to protect the coves of the strips when clamping, and the use of both clamps and bungee cords to press the strips together. As the stripping continues, the clamps eventually become too short (or the curve of the hull makes their use impossible). At this point, I use bungees and either wind them around the assembled strips or hook them from the newly-installed strip to the base of the strongback.
January 10, 2013 § Leave a comment
I know that I said that I wouldn’t overdo the posts this time around, but forming the inner stem is always a momentous occasion. Your forms are in place and you’re finally building.
The last few times, I was able to use three standard 1/4″ strips to make the inner stem. This time, I was rewarded by the sound of cracking wood as I bent the strips over the form. Deciding that I didn’t want to hear that sound again, I planed four strips a little thinner and then (as last time) soaked them in the tub in hot water for over an hour.
This time, the strips bent well and the end result was a beautiful inner stem mohawk shown below.
By the way, I use Gorilla Glue for this part. It reacts nicely with the damp wood and gives a good bond.
January 8, 2013 § Leave a comment
After some time away from boat building, it was time to reassemble the strongback and get another build underway. For this build, I won’t give a strip-by-strip account, especially if I’ve already posted on a topic, but I will post on things that I’m doing a little differently this time around.
For this build, I’ve decided to clean up the strongback a little by including a better shelf, which comes in handy for clamps and tools. The shelf is held supported by 1×4 stock into which the forms are screwed. Note the right angles to ensure that the forms are straight.
The shot below shows the forms in place with a string stretched between the end forms to ensure that everything is straight.
The string shows you if the forms are centered, but it won’t show you if the forms are off in other ways. For instance, if you traced the outline of the form onto the plywood a little shy and cut the form a little shy as well, then the form may not be as wide as it should be. While this deviation won’t be obvious just by looking at it, it will certainly become evident when you start stripping the canoe. One quick test is to take a 36+ inch length of cedar and run it along each form. If, for example, you hold the strip against forms 1 and 4, it should touch strips 2 and 3. There should be no gap and the curve of the strip should be smooth. It’s a very easy test and it gives you the peace of mind that the strips will run smoothly when you begin to build.
January 11, 2012 § Leave a comment
There comes a point in any canoe build when the sight of a sander invokes a sigh. You’ve sanded diligently. You’ve gone over the places that you missed the first time around. You’ve spot sanded because, in spite of your best efforts, there were still places that you’ve missed. And you’ve heard your wife complain again about all of the dust that you’ve tracked into the house. It is at this point that you say to yourself: Enough is enough. Time to varnish.
This is an exciting time. It’s the time when the wood that has lain muted beneath a layer of fiberglass and epoxy leaps forth. It’s also a time when the mistakes you’ve made leap forth as well. Finally, it’s a time when the reek of varnish replaces the inconvenience of dust in your house.
Before sanding, I washed down all surfaces and then wiped the hull down using a tack cloth. For this build, I decided not to obsess about lint and dust. I obsessed the last time and still got lint and dust in the varnish. Regrettably, I don’t have a dust free work area and it would have taken the better part of my mid-life crisis years to make it so. So I vacuumed and dusted as best I could and then left the final product to the vagaries of whatever draft happened to waft over my canoe.
For the first coat, I used Epifanes clear varnish, diluted a little with a splash of thinner. Later coats will be diluted less.
The following pic shows how the colors pop under the varnish.
And finally, the finished product.