
I do like a tank engine, here is the latest to add to the collection a Stroudley LBSCR D1, which is a larger version of a Terrier.
Whilst 3D printing is useful for more complex shapes and multiples, it is satisfying to use traditional ways to build locos. The engine was built using a CNC milling machine, the wheels were cut from 8mmm plate ali, frames 1.5mm steel and brass for the body. Powered by a home brewed motor /gearbox with nylon bevel gears.
Mike

but those wheels look first class !