< Platework 1 >
I prepared 1.5mm brass sheet for platework.
The side plates were cut with fretsaw. Note
the cutting direction. In this case, the
blade was set in opposite direction.
Fretsaw can cut exact lines but it needs
much time. So the other rectangle plates
were cut with a hacksaw and finished by milling.
Plates for the cab and side tanks, without
roof and spectacle plate.
The side window beading was made from brass
angle. The photo shows how to cut and bend
the angle to trace the window profile.
I joined our club's 2004 autumn meet. For
this second test run, I had done some modifications
as follows.
In the last run, I found the oil pump latch
sometimes slips. Then I intensified the coil
spring and replace the phosphor bronze spring
plate with a SUS304CUP (stainless steel spring
material) plate.
When the train starts or stops, a great vibration
of water comes to the water-column in the
cab, and makes it overflowed. Therefore I
added 'orifice' to control water flow into
the column.
The autumn meet was held at a public park
with OS combination trucks. I was riding
my loco for four hours and it took 2.5kg
Welsh steam coal. I had no problem during
the run. However, after the run, I found
that almost of cinder was not drop into the
ashpan but stocked in front of the firebox,
like a beehive! Maybe I have to make the
slits of the grate wider.
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