This steam locomotive cylinder is being machined in brass on an Emco F1 mill fitted with the WELmill controller. The part was drawn and coded with MasterCAM. A carbide 16mm BAP cutter is being used at 2000rpm, feed rate 150mm/min and 5mm depth of cut.

The picture is provided by Paul Smith of Milton Locomotive Works (MLW) and Milton Light Railway (MLR): see the South of England's Garden Railway site.