retired computer programmer/engineer, spent many years working on hardware and software support on a range of systems from Burroughs, Digico and Perkin Elmer (Concurrent) systems, used in banking, commercial systems, and flight simulation. Now spending my time on getting our house and garden back together after a huge and seemingly never ending flood relief scheme, the plan is to (among other things) set up an 0 gauge garden railway, steam powered, using 3 D printed track,