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Charles,
There shouldn't be any gap between the rings and
the hull. I'm sure if you have a 1/16 inch gap in
some places there wouldn't be a problem but remember, problems can
multiply. Filing gaps means more welding in that section, more heat and
more distortion.
It's best to start with
things as true as you can. The hull should be rolled as close as possible
and so should the frames. If the frames are out of round, they can be
trued up after rolling either by machining, if you left extra material on it OD,
or by force in a jig. Either way, they should be with in a 1/16 inch true
before you start. As you fit up and as your welding them in, you can jack
and clamp the entire hull assembly to true it. Also, you can do some
trueing of the assembly during welding by watching where you weld and how
much you weld in any one place.
If your having someone else do the welding, talk it
over with him before committing.
If your not using grade 70 steel for the hull,
there isn't any need to use it for the framing rings.
Dan H.
----- Original Message -----
Sent: Sunday, September 30, 2007 10:53
AM
Subject: [PSUBS-MAILIST] K-350
Reinforcing Ribs
Hello
Group,
I
know this has been talked about on the list before, but I figured it would be
ok to start the thread again.
The
K-350 reinforcing rips are two pieces welded together to form a ?T? I
have a machine shop that can roll these pieces out of ?T? stock leg out.
I would assume it would have the same purpose as what the original design
calls for. Does anyone have any feedback on this?
Also,
for those who have built a hull, did you actually machine the OD true?
Or just weld the gaps between the rings and the hull?
Thank
you for your help.
Charles
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