Jason you are right – I think the 6″GMT that was highlighted in ME a month or so ago is Edwards.
I had just though in my own mind that 6″ was a bit big, but then I suppose it depends on the size of the prototype. Also most firms supplying castings offer machining., which can get one out of a hole.
Perhaps also for Kerbtrawler, – you might satisfy your family interest by making any TE, and then naming it (various firms do custom nameplates) after which ever family member seems to offer the best advantage? This could offer a good balance between cost, convenience and personal survival?
Edward is cheap (very) on castings and (most important) P&P. Also drawings, and the drawings are sound.
The Little Samsons in any scale are very simple engines, and with the cast wheels, and cast differential and bevel gears (cheap!!) they are not difficult to build.
The down side is that once you get into 3″ engines really you are looking at a steel boiler, and you have to start to manipulate 10mm/1/2″ plate. Which means for most of us getting a boiler built. Which is going to cost £1500 plus the vodka and tonic. The advantage is that someone is making a bit for you over the 1 year delivery so you can save while tackling other castings and fabrications, and it is all properly EU certified and made to drawing so it all fits. (Bell boilers usual disclaimer) That’s what I did.
On the smaller engines, yes you can make your own (satisfaction) boiler, but there is the fiddle factor, and the horsepower factor when built. Boiler cost – I’d doubt, if you bought a copper flanged kit, and took in the cost of the rods and gas, that there would be as much in it as you might think.
I can say for sure that a 3″ LS can be made on a 1237 spinning 17″ in the gap. All of it, including machining the cast rear wheels. I did all my milling, including cutting all the drive gears on a Dore Westbury mill and a GHT versatile dividing head. (The setup doing a 9″ 8DP final drive pinion was a bit creative but it worked and its accurate) You could do a 4″ LS on a 12xx lathe, but you would have to get the rear wheels machined (18″ dia) or make spoked versions which are in the drawings.Flywheel will fit. Smallest thread – probably 4mm. I’ve used 3mm extensively on the 3″LS.
And a 2″ sized engine in a 6″ lathe. You don’t think that might be a little brave. Some of those bits could be a little tiny compared with an 8″ chuck. You might have a little difficulty actually finding the bits after parting off.
So there is a quite a lot of cogitation in there. Look at the Little Samson site, and also Live Steam Models, and Brunel and Blackgates. MJ of course. Bridport Castings (Foundries?) – they do the Plastow Burrells. A lot of them have been made
Be nice to know what you finally decide.
Edited By meyrick griffith-jones on 15/09/2009 12:45:18
Edited By meyrick griffith-jones on 15/09/2009 12:52:06
Edited By meyrick griffith-jones on 15/09/2009 12:53:18