The processes employed in constructing and finishing the models are many and increasingly varied. Where possible, the models all start as a general arrangement drawing and as many photos of the prototype as possible. Detail variations specific to the model being built are identified at this stage.

If a complex part is needed, or a new part needs to integrate properly with existing kit parts, then often this original data is transferred to a draughting program on my computer and worked up to produce accurate drawings.

Sometimes transfer of works drawings to the computer evolves into designing a complete locomotive or chassis which is then laid out for etching. This process is particularly suited to 4mm scale valvegear where fabrication would be extremely laborious, time consuming and unlikely to produce a better result.

Turning, machining and pantograph milling of any part as necessary can be undertaken.