BE2c
36
7/8”
Page
9
Copyright©
2007
‐
11
M.K.
Bengtson
All
Rights
Reserved
Rev
07/11
Upper
deck
stringers.
Undercarriage
Using
the
plans
as
a
guide
cut
and
shape
1/16”
music
wire
to
form
the
two
UC
supports.
Glue
together
the
ply
UC
sides
and
set
aside,
these
can
be
smoothed/sanded
after
bonding
to
the
wire
legs.
Make
yourself
a
‘jig’
to
aid
assembly,
as
shown
in
the
photo.
Bind
the
ends
of
the
1/16”
music
wire
with
thin
copper
wire
or
Kevlar
thread,
using
the
ply
sides
to
guide
the
shape.
The
‘front’
legs
should
be
vertical
to
the
jig,
use
a
square
to
check.
Some
re
‐
bending
and
tuning
will
probably
be
required
to
get
the
shape
even
and
symmetrical
overall.
When
all
is
as
it
should
be,
bind
and
CA/Epoxy
the
ply
sides
in
place
securing
them
to
the
1/16”
music
wire.
Assemble
wheels
by
sandwiching
the
¼”
balsa
middle
piece
between
the
1/32”
ply
sides.
Use
a
piece
of
3/32”
tube
to
align/centre
the
parts,
then
remove
the
tube
and
‘squash’
the
wheel
under
some
weight
to
make
sure
it’s
flat
as
the
glue
sets.
When
this
is
dry
cut
two
wheel
bearings
about
5/8”
long
from
3/32”
brass
tube.
Using
the
1/8”
ply
hubs
and
a
wheel
bearing,
complete
each
wheel
using
epoxy,
making
sure
no
epoxy
gets
into
the
bearing.
Before
glue
sets,
spin
the
wheel
on
1/16”
music
wire
axel
and
realign
bearing/hubs
as
required
to
ensure
the
wheel
spins
straight.
To
form
the
tyres
massage
one
side
of
the
neoprene
so
it
starts
to
curl,
continue
and
it
will
form
a
circle,
near
enough
anyway.
Use
CA
to
glue
the
ends
together,
but
be
careful
as
CA
and
neoprene
is
a
VERY
sticky
combination
and
if
fingers
get
involved
it
can
get
very
messy.
Place
the
neoprene
flat
on
a
protected
part
of
your
work
surface.
Use
one
small
drop
of
CA
on
one
end,
bring
the
other
end
around
to
mate
with
the
glued
end
trying
to
achieve
a
smooth
join,
you’ll
only
get
one
chance.
When
the
tyre
is
formed
roll
it
onto
the
wheel
and
with
a
tiny
drop
or
three
of
CA
secure
to
the
rim.
Once
again
be
careful
with
the
CA,
if
you
stick
a
finger
or
thumb
to
the
tyre
material
you’ll
likely
tear
a
chunk
out
of
the
neoprene
trying
to
release
it.
UC
and
wheels
The
card
cones
required
to
dress
the
wheels
should
be
cut
from
card
to
the
size
show
on
the
plans.
Score
lines
deeply
into
the
cut
circle
with
a
pen
and
cut
out
one
pie
shaped
section.
Fold
the
shapes
at
each
score
line
to
make
these
‘spokes’
more
obvious.
Draw
the
ends
together
forming
a
cone
and
tape
inside
to
maintain
the
shape.
Glue
the
inside
cone
to
each
wheel
and
install
to
the
UC
structure.
Ensure
it
spins
freely,
some
short
lengths
of
3/32”
tube
may
be
required
to
space
the
wheel
away
from
the
UC
structure.
The
wheel
can
be
retained
on
the
axel
by
a
small
washer
and
CA/binding.
Trim
axel
to
length
and
glue
outer
card
cone
to
wheel
to
complete.
