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Chassis and bogies
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The bogies and
chassis have been welded using a mig welder. This uses a 0.8mm wire to
create an arc. Take care to check for weld splatter and/or mig wire
ends as these can be very sharp.
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All the laser cut
steel components have been treated with an oil/wax coating to stop it
rusting. This coat should be removed using white spirit and a solvent,
before proceeding with assembly.
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A lot of laser
cutters use a system of tagging parts so they stay in the sheet once
cut. The sheet is then lifted off and the parts pushed out. The result
is a small tag on the sedge which can catch or look unsightly. A quick
rub with a file will remove the tag.
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Check that all
holes are clear and components fit together. You may have to drill the
5mm holes as sometimes they can come up slightly undersized. When
drilling, use a sharp drill bit dipped in oil and if using a hand
drill, start with the drill bit engaged in the hole.
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Check the fit of
the spring support plate and axle box guides and associated bolt holes.
Use a file to ease any components that you have trouble assembling.
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To avoid the
frustration of waiting for paint to dry and delaying assembly it is
worth painting the underside of the chassis at this stage. Making sure
the chassis is grease free, prime the chassis, spring support plates
and axle box guides using a good primer. Spray paints are readily
available from most car accessory shops. Do not build up too much paint
around the axle boxes as this could affect the operation of the loco.
  
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