Guides
Choosing basic modelling tools
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Always
safety first!
Modelmaking
is an enjoyable hobby but, like any activity that involves tools
and chemicals, it can present dangers if precautionary advice
is ignored. Always follow directions, instructions and health
and safety advice given.
When the need arises, protect your eyes with safety goggles.
Dust from cut materials and fumes can be harmful if inhaled.
Work in well ventilated areas and use a protective mask. When
using cutting tools always cut away from the body, keep fingers
clear of cutting direction and store old blades in a dedicated
sharps bin. After using toxic materials such as modelling compound,
wash your hands thoroughly and clean underneath your fingernails.
Many materials are flammable. Do not use or store them by a
heat source. |
The
types of tools that you use will depend on the type of model that
you are building. Generally, the tools involved in modelmaking are
cheap, rarely costing more than a few pounds. Below is a guide to
most of the basic tools you are likely to encounter…
Scalpel
A
very fine and very sharp knife used for cutting and trimming components.
A scalpel can be used to cut items from sprues, trim away excess
flash, trim off sprue runner feed points, scrape excess dried glue
from a join or to open up holes. The blades are replaceable and
come in a variety of shapes; with a selection of straight, curved
and hooked blades you can deal with most things. A number of manufacturers
make scalpels but the most common brand to be found in shops is
the Swann-Morton.
Craft
Knife
A sturdier general purpose knife that can
tackle heavy duty jobs. Like the scalpel, craft knives can have
a selection of replaceable blades. One of the more popular varieties
is the Stanley knife.
Clippers
Used mainly for basic preparation work. Basic
or electricians clippers are far better than knives for removing
plastic components from sprues as they don't put any stress on the
components. There are a variety of clippers available for a number
of different jobs.
TOP
FROM LEFT: Razor saw blade, mitre block, paint brushes, scalpel,
multi-functional handle, craft knife, needle files, steel
rule
BOTTOM FROM LEFT: Tweezers, pin vice, clippers, clamp, mini
vice
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Tweezers
Tweezers are very useful for handling and
placing small parts and transfers. Self-closing and normal are the
two basic types available and they come in various shapes and sizes.
Self-closing tweezers hold themselves closed and only open when
pressure is applied to the handles.
Abrasive
Paper Abrasive
paper is good for achieving a very smooth finish to a surface. There
are many different types and grades available and it's good to have
a variety for different tasks. Stockists include hardware stores
and car repair shops.
Files
Fine metal working files and needle files
are ideal for modelmaking. They are used to clean up components
and remove excess material. Rough pattern files tend to leave marks
in plastic, so it's best to use the finest grade you can get away
with.
Cutting
Mat
Available in various sizes from model, craft
and art shops, cutting mats provide a surface to work on that is
smooth and stable and enables the modeller to use knives safely
without ruining the surface beneath. Most varieties are 'self-healing'
which means they don't leave evidence of where a cut has been made.
Model
Compound
There are lots of different types of modelling
compound available from a number of manufacturers, with the most
common being straight-from-the-tube form or two-part.
In
the UK one of the best known putties is Milliput which, like epoxy
adhesive, comes in two parts, one of which is a hardener and which
has to be mixed well, in equal quantities. It is of a consistency
similar to Plasticine, and while it can be carved and sculpted in
the same way, it also sets rock hard at the end. When fully hardened,
it can be painted, sanded, filed, drilled, tapped, screwed, etc.
It is very popular with modellers who make their own figures, as
are other compounds such as Kneadatite and Fimo.
Fillers
such as Revell Plasto, Humbrol Model Filler and again Milliput,
can be used to repair surfaces that may be damaged or defective.
Adhesive
What type of adhesive to use depends upon
what type of kit you are building. For example, polystyrene cement
is normally used on injection moulded kits, super glue or two-part
epoxy adhesive is used on resin and white metal kits and vac formed
kits often use a combination of polystyrene cement, super glue and
two-part epoxy adhesive.
Polystyrene
Cement works
by melting the plastic it touches, mixing with it to form a secure
bond when dry.
One
problem with polystyrene cement is that it can be quite thick, oozing
out of joins and spoiling the surface detail of the model. Excess
cement can also melt a component too much, resulting in distortion.
Sometimes the adhesive can be 'stringy', in other words, leaving
a fine string of glue as the applicator moves away from where the
cement was being applied. This can break at any moment across your
model, again damaging the detail. Even so, used with care it is
still an extremely useful adhesive.
Its
thickness can actually be an advantage, as it has a degree of gap-filling
potential. Cement that oozes out from a join line can also be advantageous
because it can be cut off when dry with a scalpel to leave a neat,
strong join.
Liquid
Poly
is a polystyrene cement but it is very thin.
Applied by brush, it can be used on plastic kits but tends not to
give a reliable join. However, it proves very useful on plastic
card when building vac formed kits or scratchbuilds and conversions.
CLOCKWISE
FROM TOP LEFT: Two-part epoxy adhesive, super glue, super
glue gel, PVA glue, two-part modelling putty, tubed polystyrene
cement
CENTRE: Needle dispensed polystyrene cement
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Cyanoacrylate
super glue actually started off as a development
for the space programme! There are two varieties of super glue:
One has a thin consistency and tends to run, the other is thicker
and stays where you put it. Both provide almost immediate strong
bonding between most materials, human skin included, so please exercise
great care when using it. It's particularly good when used on resin
and white metal kits.
Two-part
Epoxy
comes
in two separate tubes, one being the adhesive and the other being
the hardener. The two have to be mixed in equal quantities to form
a very powerful adhesive paste. Some brands take a while to dry
whilst others can set within minutes. The problem with a long drying
time is keeping parts together in the desired position while the
adhesive sets.
Clear
Glue
is a general-purpose adhesive that's useful
for bonding cards and papers. There are plenty of manufacturers
out there producing this type of adhesive, such as Bostik and UHU.
PVA
Wood Glue
is a white glue that can be diluted in water.
It has the advantage of drying clear. It's great for scenic work
such as fixing scatter, sands, gravel and foliage. Drying can take
a while but once set it is very strong.
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