Thanks Mark - I definitely need many many more clamps.
To your health,
Rob
-----Original Message-----
From: Mark White [mailto:Mark@xxxxxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, December 06, 2005 8:21 AM
To: Rob DesMarais, D.C.; swiftsolo@xxxxxxxxxxxx
Subject: Re: Bulkhead 8 and CB Trunk alignment
to Rob, and any at this stage, in addition to Roger's ideas, to keep the
inside of the trunk from bowing in, stand a couple of 2x4's vertically in
the trunk, if you have one tall enough you can use it to measure out to
drill the chainplate holes in the blocks between stations 7 & 8. After
marking your chain plate holes, cut the blocks down to fit inside the well
and leave them there, you can remove them after cutting the hole thru the
deck, just leave them short enough so you don't bond them in place. Here
are some pictures of how I kept everything aligned while bonding, although
you may have a better idea, it worked with no problems.
Mark
----- Original Message -----
From: <ROWR@xxxxxxxxx>
To: "Rob DesMarais, D.C." <drrld@xxxxxxxxxxx>
Cc: <swiftsolo@xxxxxxxxxxxx>
Sent: Monday, December 05, 2005 7:34 PM
Subject: Re: Bulkhead 8 and CB Trunk alignment
> Rob and others at this stage, I may have posted this before, if so, I
> apologise, but it saved me a lot of time.
> I found a simple way of lining everything up, maybe others (Bram and
anyone
> past this stage can comment)
>
> Before I installed my bulkheads and CB trunk, I cut the CB hole in the
hull.
> Laterally, you can see where this hole should lie, i.e. you should be able
to
> see the centre line of the hull, and then use a combination of the class
rules
> and station 6, 8 and the CB trunk, to see where the longitudinal position
of
> the hole should be. Once I cut the hole, I had a clear position for the
bottom
> of the trunk. I then cut a 2" high block which fitted perfectly into the
CB
> trunk and another one that fitted perfectly into the hole in the hull. By
> gluing these together, you get a top hat section. You can then place this
> assembly into the hole in the CB trunk and the other side into the hole in
the
> hull. Voila! Your CB trunk is perfectly aligned on the bottom, now all you
> need to do is get the vertical right, and station 8 and 6 pretty well take
> care of that.
>
> Another thing..... get the CB trunk perfectly square before you install,
DONT
> install it if it has any bow to it or the sides cannot create a PERFECT
> rectanglur hole where the CB blocks are going to fit. If these holes are
not
> perfect, or the sides are bowed, you are in for a nightmare every time you
try
> to fit the blocks and CB. If it is out, take your time and make another
> one!!!!!! It will be worth the effort in the long run.
> Also, make sure that your measurements on the trunk are correct before you
> install this sucker. If the CB trunk hole is too small, there is NOTHING
you
> can do to repair it once the deck is on. PRO-SET is for good!
>
> Of all the methods that I tried for getting the fit of the hull to deck,
the
> best was the playdough. Easy and cheap to make by the bucketload. Once
made,
> you make little "mountains" of the stuff on as many points as you have
time
> for on the bulkheads, then lower your deck. Remove the deck and see where
the
> mountains have been compressed and remove some bulkhead, then repeat, and
> repeat and repeat. The more time you take here, the better your boat is
going
> to perform and last.
>
> One other thing. It may be usefull to come up with a way of locating the
> centre bolt of the chainplate before you start, because every time you
lift
> the deck up, you are not sure if you replace it in exactly the same place
> again when you lower it.
>
> Hope that helps.
> Roger
>
> Quoting "Rob DesMarais, D.C." <drrld@xxxxxxxxxxx>:
>
> > I have a ¼" difference with CB trunk and Bulkhead 8 lining up. The
bulkhead
> > is higher. 6 lined up nice and flush. I don't know whether to cut down
8
> > or raise the trunks aft end?
> >
> >
> >
> > Yes, I did cut down # 8 as Bram indicated.
> >
> >
> >
> > Rob
> >
> >
>
>
>
>
>
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>
>
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