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Posts: 43 Thanks, IP: Logged Posts: 3 If I were to do it again, I would countersink for the roves that will be on the inside of the sheer clamp when you insert the copper rivets. doing so will allow the coamings to fit flat against the sheer clamps without interference. IP: Logged Posts: 43 Their method is beveling the outside with the top of the clamp horizontal. Then when you fit the deckbeam on top of the clamp, you flattened the faying surface of the beam, supposedly much easier. Trying to visualize and think where that method may give me any problems later on. IP: Logged All times are ET (US)
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Author
Topic: Sheer Clamps
Tom Flatley
Builder
Registered: Aug 2005
posted 04-18-2007 09:03 AM
I need an explanation on beveling the clamps and such. I am reading several sources on installing the clamps and each has a different method. The Haven book says that you bevel the outside edge of the clamp. I assume this is the edge that lays against the frames. What's the top of the clamp like? Is it parallel to the deckbeams so that their curve lies flat against the top of the clamp? If it is, I'd think you'd be beveling the top and not the outside.
Or is the outside beveled to the frame and the top level. This way the deckbeams are flattened at the ends and there is no work trying to fair both faying surfaces (like the McClave/Philbin article).
Also, is it different for the aft section that doesn't take deckbeams and only the thin strip of decking?
Tom
Paul Scott
Builder
Registered: Feb 2007
posted 04-18-2007 05:25 PM
Tom: I oriented the Sheer clamps with the long dimension vertical. I beveled the outside edge (the one that lays against the frames). I had to do a little dressing to each deck beam to get it to lay fair on the top edge of the clamp (not a big deal - I used a belt sander to nibble away at the underside of the beams). Aft of about frame 12, the covering board will rest on the sheer strake and the sheer clamp. Again, a little fairing (or filling) may be required. It is difficult to get the sheer clamp to lay at precisely the correct height.
Tom Flatley
Builder
Registered: Aug 2005
posted 04-18-2007 06:35 PM
Thanks.
Looking at the McClaves Restoration article, they say that the method used in the Haven book is good but time consuming. next newest topic | next oldest topic
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