On Sat, 28 Apr 2012, Tim Kirby wrote: > I don't know if it's "morality" as such. Some certainly subscribe to > the idea that these machines are works of art that should not be > sullied. Personally I like machines that *do* things. If it's built > to run then I say it should run... of course, sometimes the museum > quality machine looks pretty and doesn't run worth squat - in which > case display is the only solution :) From my line of work, I see an awful lot of engineering where almost all of the hard work has been put in, but them it has stalled because it fails at the commissioning stage, and the route cause of the problem can't be found. I knew someone in the past who remade the cylinders for his speedy twice (ie made three sets): a brilliant craftsman, but he couldn't understand why the loco wouldn't work...having observed the engine fail when in steam with the third set of cylinders, another friend repudely strolled away from the engine, strolled back and announced that the blast nozzle must be blocked, and sure enough it was, and it was easily fixed!!! I have always thought that many construction articles could do more to help, as they completely neglect this part of the build, which may just be common sense to some, or trained in to engineers, but which I am sure is the direct cause of an awful lot of 'display models'. Also knowing full well how complicated matters can get when there is more than one 'fault' impacting on another, and that in a more complex system, the chance of more than one 'fault' is very high, I feel that a lot of articles could to more to encourage the builder to check that each part works as they go along, and to check that combinations of parts work as they are assembled. Or am I the only person who has observed and thinks this? Yours, Rich. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.