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Posted: Sun Oct 11th, 2015 02:28 am |
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41st Post |
Ray Dunakin
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Truly brilliant work! Did you make the portable turntable, too?
____________________ Visit http://www.raydunakin.com to see photos of the rugged and rocky In-ko-pah Railroad!
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Posted: Sun Oct 11th, 2015 11:35 am |
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42nd Post |
Helmut
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@Ray
No. That friend with the metalworking firm devised a portable system years ago and made all the necessary gadgets you need to operate it properly. So I am the lucky one who can always rely on his friend's almost endless stocks of equipment.
That interoperability also is the reason why I did not choose 10 1/4" but 9 7/16" gauge. Interesting enough, in the 60's there was a large operation with 2inch-scale models open for the public using the same gauge in the US. Read here.
Last edited on Sun Oct 11th, 2015 11:42 am by Helmut
____________________ Regards, H.
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Posted: Mon Oct 26th, 2015 07:15 pm |
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43rd Post |
Posted: Thu Oct 29th, 2015 10:05 pm |
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44th Post |
Salada
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Top job Helmut !. I've somehow overlooked your thread since your summertime posts.
Very elegant solution to fixing the track across the yard - running rail & hole drilling template at the same time, clever.
The need to run with cylinder drain cocks partially open : Looks like a flat slide valve from the loco photos ? :-
Is the valve body lifting off the cylinder port face slightly ?
Is the valve body face absolutely true ?
Is the admission lead/lag calculation & position of cylinder ports slightly wrong ?
Some "steam cushion"/cylinder back-pressure is necessary.
Have you tried temporarily fitting a valve manifold recording pressure gauge ? (your friends seem very well equipped, might have one ?).
I'm impressed that a B.Sc. Mech Eng undergrad actually has to MAKE something - they mostly seem to be 'paper theory &/or computer user only' graduates over here.
Regards, Michael
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Ray Dunakin
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Perhaps I missed it, but what fuel does that thing burn?
How much maintenance does a small loco like that require?
____________________ Visit http://www.raydunakin.com to see photos of the rugged and rocky In-ko-pah Railroad!
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Posted: Wed May 25th, 2016 02:38 pm |
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46th Post |
Posted: Wed May 25th, 2016 02:49 pm |
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47th Post |
Helmut
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To answer some of the questions:
The loco burns athracite coal briquets about the size of an egg.
Maintenance is the same as for the big ones:
Clean out the flues, shake the grates, remove cinders and ashes from the smokebox, oil round before each trip, keep your cylinder oil pump well filled, blow down the boiler properly after each session, and last but not least watch that gauge glass!
____________________ Regards, H.
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Posted: Fri May 27th, 2016 09:23 am |
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48th Post |
Posted: Fri May 27th, 2016 12:28 pm |
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49th Post |
Helmut
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@Si
much less, and my run is only some 400'
BTW, did anyone consider the amount of detrimental exhaust generated by our beloved lorries/trucks?
____________________ Regards, H.
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Posted: Fri May 27th, 2016 07:38 pm |
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50th Post |
Herb Kephart
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Switches look almost identical to the ones that I made for our 7½ gauge line (when we had one) except that I didn't have to make the points (tongues) so sharp--but that might have been a factor of the flange contour (SMEE std) and the fact that the rail was rectangular bar, set on edge.
I like the pin locking the points, simple, and positive. Well done! I owe you a beer!
Sooner or later, someone is going to ask how you are going to insulate the steel ties so that they don't short the two rail power <G>
Herb
____________________ Fix it again, Mr Gates--it still works!"
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