Monday, March 21, 2011

Shaping the thwarts

March 21, 2011
Today is the first day of spring and we got three or four inches of wet snow--a nice day for boatbuilding. I reread the manual and realized that I didn't glue the supports for the thwarts on dory before I put on the three coats of epoxy.  In order to do that step, I needed to cut out the thwarts.  Since I had already glued the boards for the thwarts together, I thought it would be easy to cut out the slots and shape them.  This seemed like a good job for the band saw I inherited from Dad.  Unfortunately, I never learned how to adjust the saw.  I spent quite a bit of time with the manual trying to fix the blade guides, and I went through the tool box in the garage looking for a thickness gauge and allen wrenches.  I never did find the gauge, but I did find a thin metal ruler that seemed about right.   When I started using it, I had trouble with the curves and cutting along the line.  I abandoned the band saw and used the miter saw to cut the ends off.  To cut the slot I drilled a hole at the end of the slot and then used a router with a 3/8" bit.  The wood was soft enough that I could cut the whole thickness of the board in one pass.  To round off the end of the slot I used my old saber saw.  Finally, I used a router to round off all the edges.  By the time I was done, I had used every tool in the shop.  I decided I really need to figure out that band saw.  Since I spent most of the day on just the thwarts, never did get the blocks shaped or epoxied in place.

I have the basic shape of the thwarts done, but I still need to put a chamfer on the bottom edges and then sand them.

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