Chassis and bogies

• The bogies and chassis have been welded using a mig welder. This uses a 0.6mm wire to create an arc. Take care to check for weld splatter of mig wire ends as these can be very sharp.

• 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 before proceeding with assembly.

• Check that all holes are clear and components fit together. This should include fitting the spring support plate and axle box guides and associated bolt holes. Use a file to ease any components that you have trouble assembling. Start and end points from the laser cutting process may also leave slight raises lumps. Clean these off with a file.

• 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 spray based zinc or red oxide primer. Spray paints are readily available from most car accessory shops.