Twisted Laminated Frame

[chuckm]

In the clamping process of one frame with six laminates (technically a hard bend); it twisted. It stayed in the blocks to long, and or wet weather related, external factors, don't know. Any way it has a twist. It will straighten out to correct position when mounted to mold pattern, and onced planked it should not be a problem. I'm i thinking staight?

[Bill Perkins]

I produced a big stem lamination with a slight twist . I rubbed line chaulk on a piece of plywood , then rubbed the piece back and forth on it a few times ; flipped it over and planed down the blue spots ; repeating the process untill I had a flat face to gage the other 3 sides from .

[Jay Greer]

Well, yes and no. A laminated frame has a lot more resistance to "nudging" into alignment than a solid steam bent one does. You will know what is needed, once it is clamped up to the molds and ribbands. You might find yourself doing a bit of shimming and shaving to make the frame fair. At worst, you will end up making up a new one.
JG

[chuckm]

Jay: if it does allign up which i think it will because a lead brick layed on top of it will bring it in straight on the floor, it won't interfere with building process will it?

[Jay Greer]

Many boats built with steam bent frames end up with frames slightly out of plumb alignment if that is what you mean. I was thinking of axial twisting in relation to the center line of the hull. In that case, some shimming or planing will, most likely be called for as the planking should lay fair to the bevel of the frame.