The original kit comes with a white metal roof, but it didn't sit quite as accurately as I wanted, so I filed the detail off and added a brass overlay. This gives a slightly sharper and less fragile edge. The brass is really thin, i'm not sure about the exact thickness but still required heating to soften it. I held the brass over the gas ring on the cooker until it went straw coloured and then left to cool. Once this has been done the brass can be rolled over the white metal base without effort.
I used epoxy resin to bond the two together. The lintels over the cab sides were made by soldering on brass handrail wire. This still requires a little more filing down as the lip is quite subtle on the prototype. The ventilator comes from the body etch but isn't used in the original build instructions.
Pictures of Welsh Pony show the engine looking quite battered during the period I am modelling and I wonder if the edge of the cab roof shouldn't be rather more uneven! I'm not sure I can bring myself to spoil it.. But then again I chickened out on modelling the mangled dome cover too. All that remains now is to add the central band and rivet detail….
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