A little problem with my sheer clamp-deck connect

John Robinson

John Robinson

Well-known member
Now that I know how to post drawings, please look at the attached detail of my sheer clamp to deck joint. I made a mistake when I installed my sheer clamp, I should have set it high enogh to account for the gap created by the difference in camber angle to side hull.

duckboatSHEERCLAMPISSUE.jpg


Instead I set the edge of the sheer clamp even with the top edge of the hull creating that gap if I install the deck. It seems I have two options:

  1. Add a wedge of fir before I install the deck, actually glue on a 1" x 1/2" high along the whole sheer, then plane it to the correct angle after the glue drys, then install the deck with screws through the wedge into the sheer clamp as per Devlin plans. or..
  2. Install the deck now and fill the resulting gap with thickened epoxy.
#1 seems the right way to go but is definitely harder than #2. What do you guys think?

Thanks,
John
 
Absolutely #2. IMO there is nothing to be gained by going through all the work to put in an itty bitty wedge unless you have nothing better to do. That's one of the beauties of epoxy, it's a great gap filler when loaded with stuff like wood flour.
 
What Pete said! It will be stronger and easier. There are plenty of places to make the job harder than it needs to be and this is one of them. Fill w/ peanut butter and paint.
 
To make it even better, put a bunch of thickened epoxy on it as you put the deck down and then smooth it out once the deck is secured.

Trying to completely fill a void like that from the side is not easy and you will be left with small air pockets all over the place.

To control the squeeze out use painter's tape and paper or plastic and mask off the area under the joint on both sides of the hull.
 
I just wanted to add that your drawings rock! You should tutor Harker!

Tom
Click to expand...

Hey, my pics are artistic, not architypical. You could also still taper the sheer to the deck stringers
 
Another good idea!!! I would take a bit off with my belt sander and then butter the deck in. But then I always have put function over form.
 
We'll I've got tons of wood flour left, also micro-balloons, but I think the wood flour would be more structural. I guess I'll make a little tape dam, mix it up pretty thick so it doesn't all run out and use the cut off baggie-pastry decorator bag idea to fill the gap.

Thanks, for the input.
John
 
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