Well it has been a hell of a long time since my last post. Finally I took the two planks that I made down from the shelf. Having decided that i would not be making anything longer that a 19 foot canoe the planks that I had made 18 feet long I shortened to 17 feet.
Gil suggested that a cross brace could be added to prevent warping. I decided to cut 15 3/16 inch cross braces out of a piece of 2x6 and inserted them at 34 inch intervals between the two planks. This allowed me to clamp the planks together as I went to make sure that they were 18 inches wide on the outside the entire length of the strong back. I had previously cut the supports for the forms at 18 inches wide, but when I measured them out at 18 inch spacing I did so from the end of the planks. This meant that I had very little end of which to mount one of the end pieces of the forms. Therefore, I unscrewed the 2x4s and then found the center of the planks and worked from there making sure that the 18 inch spacing was correct.
I will take a couple of pictures the next time I am out in the garage to show you the strong back. Then I will have to pick up some plywood to start drawing out the forms before getting them ready to cut.
Cheers until next time, hopefully not such a long delay between inspiration this time.
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