Monday, November 28, 2011

Mounting the Station Forms

Building a cedar strip canoe is similar to painting in that there seems to be as much work preparing to paint as painting. Here too its all in the preparation of the mold that I will build on.
Once the inner and outer stems are made I could mount the stem mold on the strongback. This involves alot of leveling every way possible and making sure everything is plumb and straight. Here is the completed bow station that is screwed to station mold #6. In addition it is supported at the strongback and two wedges are placed to keep it square. It is very important that these be just right since everything else lines up to the bow and stern.

Here is a string line from the center of the bow and sten across the length of the stronback. This is done with a little building jig that is 1/2 the width of the plywood used for he bow and stern - in other word 5/16". The line provides a top center line to match the centerline scribed on the strongback.

Each station mold is lined up with the center line on the strongback and the centerline of the string. In addition there is a vertical center line on each station mold that must be plumb. You simple adjust or shim the bottom if needed, clamp it to the strips on the strongback and use two course thread drywall screws to attach it. It worked very well. Here are the stations going into place

Once all the stations are attached I covered each with a strip of masking tape to keep the glue from sticking. Then I used a spare cedar strip down the stern, leveled each station form and tacked them to this battan to hold them in place. Unfortunately I did this before I read the insructions to make sure everything was "fair" and as I sighted down the lines I realizd that the one #2 station was just a fraction higher than the #1 station......and that is not a good thing. So..off comes the battan and masking tape and out comes the "surform" to shave off a bit. It all looks good now. The inner stem is clamped in place in order to shave it down as it is shaped to received the cedar strips. Next step is shaping the stems and sorting the cedar strips to decide my pattern.

Saturday, November 26, 2011

Making the Stems

The stems form the bow and the stern of the Canoe. There is an inner stem that you never see again since it is covered with cedar strips and an outer stem that is the final finish of the bow and stern. These stems are made from ash ripped 1/4"x 3/4" so they will bend easier. Each inner and outer stem is 3 pieces or the equivalent to a 3/4"x 3/4" solid piece. The steamer I create was to fit the fryer/steam that I had. Made from a 9" cake pan, plywood and a piece of 2" PVC screwed and epoxied to it.
Now we're cooking. If you look close you can see the steam. It takes only about 15 minutes in here to get the wood fibers soft enough to bend around the stems. Once you pull them out - with gloves by the way- you have about 1 minute to get them clamped before they cool off.


Here they are clamped around the stem form. This step is done before the form is mounted on the strongback so you can let it fly at the ends. Once the stems are epoxyed the ends can be trimmed to size and the stem forms mounted on the strongback. ts a good thing Home Depot had a sale on the 6" squeese clamps or I would have been in trouble. As it was they worked great. You only need to clamp every other hole for this step.


The steamed stems are left to dry overnight on the forms and then once removed given some more air time to be completely dry. I hung them over our furnace where they got lots of warm air.


After about 24 hours or so the stems are epoxied together with thickened epoxy. It is important to keep the inner and outer stem from being glued together - thats what the blue painting tape is for.


I used every clamp I had for the final clamping to the stems. 22 in all and I'm afraid I'm going to need more in the future. ps. gift idea. The clamps are set alternately on the inside and outside to balance the pressure but pulled the stems very tight to the stem mold. I cleaned up the extra epoxy with a painting scraper and a rag with Laquer Thinner. Now they will sit for a day before being removed and shaped. The next step will be to mount the stem molds and the rest of the station molds

Monday, November 21, 2011

Making the Station Forms


Today was my Sabbath Day of rest and I spent it cutting out the Station forms for the Huron Cruiser. I began with two sheets of 5/8" plywood cut in 1/2 ( you can do it for free at Home Depot). The factory ends become the bottom that will meet the strongback. I had to order large size carbon paper on-line to trace the from on to the board and on to the back of the plans. A good idea I just picked up off of the Bear Mt. Boats builder forum was to have a mirror image of the plan duplicated at a blueprint printer and attach it at the centerline. This would eliminate one step. The whole process is timeconsuming in a relaxing way but not difficult. You just have to be very exact on the centerlines, tracings and cutting. I drilled the holes for claiming the stems to the stem station with a 2" bit. The plan called for even more holes than this but the book said 3" on center was sufficient so I went with that.


Here are all the station molds cut out and read to be trimmed and sanded to the cutting line. Its better to cut a little bigger than smaller.

I decided to screw the two twin forms together matching up the bottom and center-lines in order to sand them together. This should get me identical twins.


Finally, I clamped by belt sander to my work vice in order to create a place to evenly sand the twin forms that are screwed together. It works very well but will still require some finish sanding with a sanding block I made copying an idea from Nick Offerman's Canoe Club Journal








Saturday, November 12, 2011

Building the "Huron Cruiser"

This week I began preparations for the construction of a cedar strip canoe. I'm building this for Paterson Habitat for Humanity to auction off at our Spring Fundraising Dinner to help us continue to build homes in the city of Paterson and around the world. The Huron Cruiser is 15ft 9" and designed by Bear Mountain Boats. It is described in this way.
"The lines for this canoe were taken from an original 'Huron' built in cedar/canvas by the Peterborough Canoe Company. It was a second grade model in a series of Cruiser canoes that measured from 16'x33" to 18'x37". "They have good carrying capacity while retaining a light draft, and are an easy paddling craft that can be handled well in rough or swift waters. The gunwale line is straighter in these models and is lowered at bow and stem, thus offering less wind resistance." The rounded bottom shape may reduce carrying capacity but the paddler may expect a quick and responsive craft." ...from the 1929 Peterborough Canoe Co. catalogue.

Bear Mountain Boats is operated by Ted Moores who has written the above book which is basically your guide to construction. He has also written a similar book called the Kayakcraft which I used building the "Spring Run". I purchased the Huron Cruiser as a kit from Noah's Marine Supply in Ontario. The cedar strips come in a 20 ft. tube providing full length western red cedar along with some Alaskian white cedar strips I'm looking forward to creating a beautiful design that will be seen from inside and outside the canoe.

The preparation work begins in the construction of the strongback. In this case I widened and strengthed the one I used for the Sping Run. The renovated strongback provides and 11" area on top to attach the stations to. The challenged part is getting in level both ways on a very unlevel basement floor. The station blocks provide an attachment point every 12" for the 13 stations that will make the form of the canoe. In addition the stems go on the bow and stern.

Here is the strongback ready to go with most of the blocks attached. The next step will be to transfer the exact station mold shapes from the plan to 5/8" in plywood, cut them all out with a jigsaw and sand them all down to the perfect shape. Any mistakes at this staged will lead to a misshapen canoe. For any potential boatbuilders interested in seeing the entire process actor Nick Offerman recently built a Bear Mountain Canoe and did a video of the entire process. This is

For any potential boatbuilders interested in seeing the entire process actor Nick Offerman recently built a Bear Mountain Canoe and did a video of the entire process. This is available for purchase but he also did a 300 page journal of the construction that is available for free by clicking HERE.