Spring Winding
This section describes a method for producing coil springs, for cosmetic detailing, from
wire. The example shown uses 0.6mm brass wire formed around the shank of a 1.4mm drill,
other materials, e.g. steel or copper, can be used. Such springs will also work functionally,
though note that steel of the correct scale diameter tends to be too stiff.
The drill, forming the armature around which
the spring is to be wound, is clamped firmly
into the lathe chuck with its shank protruding.
The free end of the shank is supported by the
chuck in the tailstock, lightly clamped.
Start with a bend at the end of the wire to
form an anchor. Catch it either between the
jaws of the chuck (if they are far enough
apart), or (for smaller wire and armature diameters) within the flutes of the drill.
Using a pair of pliers to apply tension, rotate
the lathe chuck by hand to wind the wire
around the armature. Pay heed to the direction
of winding - a surprising number of diesel
bogies were fitted with left-hand wound coil
springs (sometimes with a duplex right-hand
wound coil within).
As you continue to rotate the chuck, vary the
tension and angle on the wire to get as close
as you can to the desired coil spacing (you can
adjust this later, but it's best to get as close
as possible to start with).
Keeping the coil on the armature, you can
stretch or compress the spring axially to get
the coil spacing you need.
General Notes
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(c) PenBits Model Railways, All Rights Reserved
27/09/2021
Содержание BACHMANN CLASS 24
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