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SPECIALTY TOOLS FOR SHIPBUILDING
There are many tools available to assist you in the construction of your ship
models. Some of them are of little use for anything else as they have been
specially designed with the model shipwright in mind. While not all of the tools on
this list are necessary there are some which definitely belong in your toolbox.
Without them the task of building a model ship while not impossible will be just
that bit more difficult.
Building boards and keel clamps.
For any building to take place you are going to need some sort of building board
or keel clamp to hold the keel assembly while the bulkheads are glued in place.
Building boards are a home made thing and a basic building board is adequate.
The one pictured below (a & b) consists of an accurately cut groove of some 4 to
5mm deep where the ply keel is held firmly in the slot. This type needs to be a
firm fit to prevent undue movement of the keel itself and prevent warping as
bulkheads are glued into place. This groove board is only suitable for deep
keels. Check to see if there is adequate clearance between the board and the
bottom of the bulkheads. If the bulkheads foul the board then you will have
problems with keel and bulkhead alignment. It may be possible to shim up the
keel to overcome this problem just ensure there is sufficient grip of the keel to
prevent the model falling over. To build this board you need a saw bench or a
hand held electric saw and some method to guide the saw to keep the slot
perfectly straight. You also need to check for twist and / or warp to ensure the
board is dead flat before you start building.
When the glue has dried on the keel assembly this board should be retained as a
protective cover for the building bench. The slot is handy to hold the hull in the
upright position during all phases of the building operation including rigging.
(a)
(b)
Another building board is basically the same but with two thin strips of wood
screwed down along either side the keel to securely hold it in place (a & b).
These strips need to reasonably thin so as not to foul the bulkheads when they
are glued into position. Spacer blocks can be used to raise the keel somewhat to
eliminate this problem. To build this board all you need is two strips of thin wood
for the keel clamps, the board itself and a few wood screws. Again the board
must be flat and free of warp or twisting. The strips of wood are screwed to the
board in a temporary fashion, don’t glue them down. When one is screwed down,
the keel is placed against the strip of wood. The other strip is then held / pushed
firmly against the keel and then screwed down to securely hold the keel in place.
As in the above paragraph; after the keel/bulkhead assembly operation has been
carried out and the glue has fully dried the board can be retained as protective
cover for your workbench and to hold the hull upright during most building
phases.
(a)
(b)
Various keel clamps are available on the market and they vary somewhat in price
as well as quality. Home made clamps can be built for a fraction of the cost of
bought clamps. Anything with a swivel base is an enormous help whether it be a
commercial clamp or a home made version. All the pictured clamps are handy
and carry out the required function. Examples of keel clamps; expensive (a),
cheap (b), home made (c), home made using a modified swivel vice and
extended soft jaws (d).
(a)
(b)
(c)
(d)
A distinct advantage of having a movable building board or keel clamp rather
than using the bench top is the ability to safely store your ship out of harms way.
Keeping ships out of the way of little hands and animals is a very big advantage.
It causes a lot less drama in the household.
Any of the two boards (or variations of) mentioned above or the keel clamps can
be used, it’s a personal choice thing.
There are quite a few other building boards and platforms out there for
specialized building method. Some of them are great ideas and others not so
great. These different designs can be seen on the various web sites dealing with
the construction of a particular ship. It’s your decision but you will need
something to build your ship on.
Plan holder; great for holding the vital plans where you can always see and refer
to them. Designs for home made plan holders are available on the net. Even a
piece of appropriate sized dowel and a couple of paper clips as shown in the
photo is an adequate plan holder. Unfolding and re-folding plans will in a short
period of time cause severe tear and wear on the plans.
Proportional dividers; an expensive tool that is not really essential but if you have
them they are one of those very handy tools. They quickly and accurately
calculate on a sliding arm the average plank widths required. The same end
result but a slower method is to use a paper tick strip and average out the
measurement. While not strictly a tool for ship builders only they are popular
amongst the modelling fraternity.
Planking screws; very useful for holding hull planks in position while
measurements are taken or while glue dries. Available in both plastic (a) and
metal (b) construction and while the metal screws are of a higher quality their
price is nearly ten times greater than the plastic variety. These planking screws
don’t work as well when the bulkheads are less than 4mm thick, as there isn’t
enough material for the screw threads to grip and splitting may result. Plastic
headed push pins are the answer for the thin ply. In bulkheads made of 5mm ply
or thicker these planking screws are marvellous.
(a)
(b)
Strip former; to aid in the bending and shaping of planks. Used to put small score
marks in wet planking strips so as to aid in bending the strip. These tools have a
varied reputation, some modellers swear by them while others hate them.
Make the score marks very close together (3mm to 4mm) if made wider apart flat
spots can occur. These flats show up on the outside bend as a series of flat
sections and are very noticeable in the finished hull. These tools are unsuitable
for internal curves as the scores show up on the material.
Plank bending jigs; cheap but also easily made. Great idea for the shaping of
planks. Wet planks are held in the position of the required shape until dry. Great
tool but a cheaper version can be made in the form of a “cribbage board”.
Numerous holes are drilled in a piece of board where the planks are held by long
stout removable nails. (75mm nails are sufficient). If rust marks on the timber are
going to be of concern plastic tubing or masking tape on the shaft of the nails
overcomes this problem.
Electric plank bender; this style of plank bender is really no more than a low
wattage soldering iron with a modified tip. Considered by many to be vital for the
steam bending of planks, the heat of the iron dries the planks as they are formed
into position by either doing it on the ship or pre forming the planks around the
iron. Good idea as an inexpensive and very popular tool.
Plank tapering vice; for the accurate cutting and sanding of planks. The pre
marked plank is clamped between the jaws of this device and the excess
material trimmed or sanded away. One problem with this tool is when the wood
to be trimmed slips in the jaws. This can be overcome by gluing strips of very fine
sandpaper to the jaws. Yet again this is a tool which some find handy while
others deem it next to useless for its intended purpose.
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