Wednesday, February 20, 2008

Erin's first day of carving her paddle


These photos were sent to me by Erin from the first day she worked on he paddle. She reports that it's coming along nicely, and we're currently making plans to have a show and tell (with Kurt's paddle there, too, hopefully)
on Saturday. If we manage to work out the details and get a paddle gathering going, I take some more ics of their progress.

Sunday, February 3, 2008

Second coat


A few rather large bubbles sprang up under the fiberglass, right down the center of the blade. I'm not sure why--it could be I just didn't catch them when I squeegeed, could be that they were beading up in response to some sort of contamination. Regardless, there they were. So I went out to the shop this morning and took the tops off them with a razor blade. I'll sand them lightly with some 220 grit sandpaper and put the second layer of epoxy over them. Maybe they won't be too visible.

Update: I tried to get a good picture of the bubbles, repaired before the second coat, but my camera doesn't do close-ups well. In any case, after I put the second coat on, the trimmed and sanded bubbles were invisible.

Saturday, February 2, 2008

Glassing the power face

Todd Bradshaw (on the WCHA forum) said that I should varnish the epoxy if for no other reason than that the epoxy is not UV-resistant. He suggested I sand it while green and then varnish it. Sounds like a good idea to me. If I get the power face glassed this weekend, I can have the whole paddle sanded and ready for a finish by next weekend. I can put on one coat of varnish/week for three weeks, apply four-five coats of the linseed oil/varnish/turp finish to the shaft and grip in between coating the blade, and have at least a month of cure-time before the trip.

I sanded the front face and cleaned everything up as much as possible with the shop vac. I did it before epoxying the power face because I wanted to make sure the edges were smooth and that I wasn't going to add another layer of epoxy over a rough edge--making it that much harder to clean up later.

Then I put the first layer of epoxy/fiberglass down on the power face. This time, I paid very close attention to smoothing out air bubbles, and the overall layer of epoxy wound up being much thinner. It was still easy enough to smooth out, though, and hopefully any high spots will level. Before I did th second side, I was wondering why I had to do two coats of epoxy. Couldn't I just do one thick coat and let it level out?

Well, the answer is (dope slap), no. You do a first thin coat because that allows you to get rid of the air bubbles. If you leave it thick, you can't squeegee them out.

Tuesday, January 29, 2008

Brazos, after glassing the front face



Here is a photo after glassing the front face. It didn't turn out too badly, though I can certainly improve on my technique in the future.

That cedar is awfully pretty, with some flame thrown in for magic.

I have a question for those of you who have glassed your paddles. Did you then coat the blade with varnish? It seems like the epoxy scratches fairly easily, and perhaps varnish would offer some protection? On the other, wouldn't the varnish just chip off the epoxy?

Sunday, January 27, 2008

De los Brazos de Dios




I've made an epoxy tip and am 'glassing the blade for a bent shaft paddle I made in the fall. I've been looking for a good paddle to use for our annual trip on the Brazos River, which is a slow-moving, shallow and sometimes rocky stream. Because it is shallow and slow, I've gone with a shorter, wider blade. I've made it out of cherry, walnut, maple, basswood, and western red cedar, hoping the combination will give me both strength and lightness. I'm glassing the blade and giving it an epoxy tip in hopes that it will give it some durability in the rocky parts of the stream.

I carved the paddle at the annual Conference for the Advancement of Science Teaching last November. I always take along a paddle blank and shave horse, and sit and carve a complete paddle over the two and a half days I'm there. It draws in people who would otherwise pass by the display touting our degree program.

The river's full name is "El Rio de los Brazos de Dios"--the river of the welcoming arms of God. I've always loved that name, and so have decided that this paddle will be called "de los Brazos."

Here are some photos of the epoxy tip and glassing process.

Thursday, January 24, 2008

Making a blank for the "Loon."


I made this bent shaft after a trip to the Boundary Waters. I saw loons up close for the first time on that trip and was really taken with their very graphic color pattern. A beautiful bird. Anyway, I wanted to make something to honor them, so I came up with this blade pattern. People seem really intrigued by how it was constructed, so I've posted some photos of the process on the sidebar to the right. (I tried to post them in this blog, but it didn't turn out very well.)

This is a much more complicated glue-up than a regular laminated paddle, so I wouldn't recommend it for your first paddle, but I think it would be easy enough once you have a couple under your belt.

This post isn't meant to offer instruction on gluing up blanks in general--I'll do one of those in a later post. This is just to show the steps for this paddle. That is I'm going to assume some prior knowledge, and leave out a lot of commentary on the basic steps.

Probably the only part does need explanation is the photo titled "gluing the cookies," showing what I call "paddle cookies." (They remind me of those refrigerator cookies, with two layers of dough, rolled up and sliced, revealing swirl.) This is made with a thick strip of basswood, cut at an angle to form several "chunks," between which is glued a thin strip of walnut to form a multi-wood strip. This is then sliced lengthwise and laid open in "book matched" pieces of wood. The two pieces of book match are then glued to both sides of a blank as you would any other strip of laminate (shown in "gluing the blade").

Finally, I half-lapped a piece of cherry onto the tip to protect the basswood (not shown here). I also haven't bothered to show cutting the blade to shape, or carving it and the shaft with the spokeshave. That will be part of another post on paddlemaking basics. None of this shows up very well in the post, so I'll probably eventually create a webpage for better demonstrations. (Unless I can figure out how to format this blog a little better...)