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Internal stem details
By:Ed Valley
Date: 11/1/1999, 5:30 pm
In Response To: Re: Internal stems (Larry C.)

Hi Larry:

> Ed, what did you use for tack glue for the inner stem?

I used Titebond, the same glue I used to join the strips to each other. When I say "tack", I mean that I used the glue sparingly. Additionally, the joint between the stem and the form was.... irregular at best. I freehanded each cut, and then when it came time to fit the stem to the form, I knocked off the high spots in the joint but I was not too careful to make the joint tight throughout it's length. So...

>and how did you
> knock it loose when removing the hull from forms.

when it came time to separate the forms from the hull, the place that "failed" first was the endform-stem joint. Here's why. The area that was glued between the endform and the stem was 1/2" wide by, say, 30" long giving 15" sq. This joint was spotty at best, too. The other glued area was the side of the stem, about 1" wide, 30" long and I had 2 of them, one on each side. 1x30x2= 60" sq. Plus, at the place where the end of the strip touched the stem, I was generous with the glue. No voids. This was a much stronger joint, so as I carefully worked the finished, unstapled hull away from the forms, I could eventually get the tip of a large standard screwdriver in the endform-stem joint. A little twisting, a little cracking, a little moving, a little more twisting... eventually, the form surrendered it's grip on the stem, and the hull, with it's stem, came away.

>Also did you have any
> problem with glue on the inner stem getting into the end form-inner stem
> joint?

I don't really know, the glue I saw in the hull after I removed it from the forms certainly came from the strip to strip gluing process, but as I think about it now, I doubt any of that glue enhanced the endform-stem joint. Here's why. I worked on the hull with the keel upward. This meant that the stem was positioned so that, in cross section, the point of the triangle of the stem was upward and the base was below. I think that the glue that flowed into the strip-stem joint would have kept on flowing downward toward the sheer, and not make a turn and flow or wick into the endform-stem joint. At least not enough to keep me from breaking the joint with a big screwdriver.

I hope this makes sense.

Ed Valley

Messages In This Thread

Newbie Questions
Rick Lowrie -- 10/27/1999, 1:48 pm
Re: Newbie Questions
Rick Lowrie -- 10/28/1999, 3:58 pm
Re: Newbie Questions
Steve in San Diego -- 10/29/1999, 2:33 pm
Internal stems
Ed Valley -- 10/28/1999, 7:43 pm
Re: Internal stems
Larry C. -- 10/29/1999, 9:55 pm
Internal stem details
Ed Valley -- 11/1/1999, 5:30 pm
Re: Newbie Questions
Mike Hanks -- 10/28/1999, 5:52 pm
Old-bie answers
Paul G. Jacobson -- 10/28/1999, 12:20 pm
Re: Newbie Questions
Kent LeBoutillier -- 10/28/1999, 12:01 pm
Re: Newbie Questions
Steve in San Diego -- 10/28/1999, 11:50 am
Re: Newbie Questions
Byron Lawrence -- 10/28/1999, 12:23 pm
tools
Paul G. Jacobson -- 10/28/1999, 12:29 pm
Re: tools
Jon Allen -- 10/28/1999, 7:52 pm
Buying new tools
Paul Lund -- 10/28/1999, 8:42 am
Re: Chair saw
Don Beale -- 10/28/1999, 4:22 pm
Re: Newbie Questions
Rehd -- 10/27/1999, 9:59 pm
Re: Newbie Questions
Larry C. -- 10/27/1999, 9:00 pm