January 5, 2009

Cross sections started

Over the weekend, I worked on getting the cross sections drawn onto foam board. I'm glad that I did, I had to rework a couple of minor things. I found ways to have Paige help - I had the offsets plotted out and we connected them together. Our first session was to get the main outside dimensions drawn up. I squeezed the second session into a small 20 minute window between other stuff; but, we got started on drawing the stringers in-place. My next step is to draw the concave edges and internal cut-out area.

I'm at a place where I have a question about the keel line- in Tom's example pictures, he's using a 1" x 5/8" stringer for the keel. He has a 1/4" overhang off of the bottom of the cross section. I need to find out if I need to have a 1/4" on the Sea Flea's keel (or less, if appropriate).

Update: I posted on the Kayak Building Bulletin Board and got a response from Tom Yost that indicates that a 1/4" is required for skin to cross section clearance. Well, that was easy.

I've also added a chalk line to my list of tools. It was free via our local Freecycle group, so my project total cost stands as it is. Though- I just saw the Veritas cornering tool on Bryan's blog. I'm watching one on ebay that I'll hopefully be able to win. But, we'll see.

2 comments:

Pawistik said...

Hi Douglas,
If you don't win the ebay auction, don't sweat it. I don't think I'd rush out and buy one of these tools just for this purpose. I already had it so that's why I used it. It's nice & worked well, but if your frame is softwood, a sanding block with a realtively course paper would work well. It might take a little longer, but should be easy enough. On the other hand, if you think you might use it again later on the next project or you just want to expand your tool chest .....
;)
Cheers,
Bryan

Doug S said...

Oh, this entire project is turning into an excuse to expand my tool chest (hence the 2 saws). But, I'll probably hold off until kayak #2 (fingers crossed) to buy more of the little stuff.

I've already convered the offsets for the Sea Tour 17-R for me.

Thanks for the comments, though! Much appreciated!