Search found 1540 matches

by GTB
Wed Feb 19, 2014 8:47 am
Forum: Rolling Stock
Topic: More TVT Open Trucks
Replies: 15
Views: 8217

BTW,  is that track code 250 rail spiked to sleepers? That's just my photo track, it only sees sunlight when I take pictures. The rail is some locally made brass code 330 and the sleepers were sawn from an off-cut of mountain ash, which wouldn't last very long at all outside in this area. The base ...
by GTB
Wed Feb 19, 2014 8:09 am
Forum: Rolling Stock
Topic: More TVT Open Trucks
Replies: 15
Views: 8217

Keith S:96871 wrote:Very high-quality modelling. Much nicer than my feeble attempts.
I've had forty years practice, plus work no longer interrupts my modelling time....... ;)

Graeme
by GTB
Wed Feb 19, 2014 8:02 am
Forum: Rolling Stock
Topic: More TVT Open Trucks
Replies: 15
Views: 8217

I was thinking for the Accucraft choppers that we both cut down could a belt/disc sander be used on the coupler housing once cut to make it square? I usually use a 4" warding file to clean up after sawing (my standard size file....). I have a small Ryobi combination sanding disc/linisher and h...
by GTB
Wed Feb 19, 2014 7:28 am
Forum: Locomotives - Live Steam
Topic: Repainting Russell
Replies: 57
Views: 27092

I managed to get another hour or two in this afternoon and am still very pleased with the results so far That's the main thing, you will be more critical of it than most viewers and you will be looking at it for a long time......;) Forgot to mention before, but a supply of cocktail sticks is useful...
by GTB
Tue Feb 18, 2014 1:13 pm
Forum: Rolling Stock
Topic: More TVT Open Trucks
Replies: 15
Views: 8217

More TVT Open Trucks

Summer this year has been too hot to spend much time out in the workshop, so I've been inside building rolling stock. Back when I started building wagons for the TVT, I built a batch of three drop-side open wagons. I recently built another batch with some minor changes and finally got around to taki...
by GTB
Tue Feb 11, 2014 11:21 am
Forum: Locomotives - Live Steam
Topic: Rivet detail
Replies: 6
Views: 5356

I have done a bit of googling tonight and found there is a high number of welded tanks out there Depends on when the loco was built and where it was built. Arc welding didn't come into common use until after WW1, but British loco builders often used flush rivets for aesthetic reasons, long before e...
by GTB
Mon Feb 10, 2014 2:59 pm
Forum: Locomotives - Live Steam
Topic: Rivet detail
Replies: 6
Views: 5356

Re: Rivet detail

I could go the press the rivet way but I'll have to make/purchase a rivet punch, probably the former as the later will be too expensive here in Australia Decals look OK in HO, but I've not seen any that are made for SM32/45. Sticking on individual rivets is a sure fire ticket to a stay in the rubbe...
by GTB
Thu Feb 06, 2014 12:57 pm
Forum: Photographs
Topic: Billy with various added details and snow
Replies: 25
Views: 12627

Good point. The Inuit never developed railways though, and Canadian trains from that era bear a closer resemblance to American ones. Aust. Aborigines never developed railways either, but two of my locos have an aboriginal name, as many of their words have entered the local version of English...... ...
by GTB
Thu Feb 06, 2014 11:30 am
Forum: Locomotives - Live Steam
Topic: Repainting Russell
Replies: 57
Views: 27092

Re: Repainting Russell

but there's nothing like the prospect of ruining hundreds of pounds worth of loco to focus the mind. If you are lining over the original Roundhouse paint job, you'd have to try really hard to do any permanent damage. If you use enamel, eg. Humbrol, then all you have to do if it goes pear shaped is ...
by GTB
Wed Feb 05, 2014 12:54 pm
Forum: Projects
Topic: University experiments
Replies: 54
Views: 25845

At the moment, I think that if there is a large heat loss, the majority of it will be due to the hot gases passing through the fire tube to quickly, and so not transfering more energy to the water, and instead heating the smoke box and the front of the locomotive. The boiler tests I did gave much t...
by GTB
Wed Feb 05, 2014 11:27 am
Forum: Photographs
Topic: Billy with various added details and snow
Replies: 25
Views: 12627

It looks very nice. I do like a red loco..... I've never seen that much snow. I hope the clanking noise in the background was a brass monkey passing by and not worn side rods........... ;)  But seriously I should look up head codes and figure out what they mean. I simply have the lanterns like that ...
by GTB
Tue Feb 04, 2014 12:10 pm
Forum: Locomotives - Live Steam
Topic: lynton and Barnstaple manning wardle
Replies: 58
Views: 34890

INJIN:96454 wrote: This pic give a better view..........
Thanks. I couldn't see the correcting link, or the fork in the vibrating lever, in the other view.
by GTB
Tue Feb 04, 2014 1:49 am
Forum: Garden Railway Technical Help & Advice
Topic: Roundhouse cylinders and valve gear
Replies: 3
Views: 2181

I have the older cylinders. According to the paperwork I found out for them they have valve travel of 6.4mm. Thus my offset for the eccentric should be 3.2mm. I'm just trying to establish how much lap there is on the valves now Sounds like very long valve travel by current R/H standards, so it woul...
by GTB
Mon Feb 03, 2014 12:20 pm
Forum: Locomotives - Live Steam
Topic: lynton and Barnstaple manning wardle
Replies: 58
Views: 34890

When Roundhouse built there L&B loco's they avoided the frame cut outs by splaying them out at the front & rear to allow the trucks to swing. That's a good idea. I take it the brake cylinders disguise the dog leg in the frames at the rear, the same way the cylinders do at the front? What's ...
by GTB
Mon Feb 03, 2014 8:08 am
Forum: Garden Railway Technical Help & Advice
Topic: Roundhouse cylinders and valve gear
Replies: 3
Views: 2181

Re: Roundhouse cylinders and valve gear

Does anyone have drawings of slip eccentric valve gear to operate roundhouse cylinders? Or can someone provide me with the relevant sizes for me to design my own? Which R/H cylinder type do you have? Current production cylinders have valve travel of 5/32" and have a steam chest that is square ...
by GTB
Wed Jan 29, 2014 10:49 am
Forum: Locomotives - Live Steam
Topic: Inside Cylinders
Replies: 20
Views: 10665

What kind of valve gear is that utilising though? I've ever seen it before... Allan straight link gear. Basically works the same as Stephenson link, but the link is straight, so the lifting links are suspended from a rocker and move the valve rod and expansion link in opposite directions to keep th...
by GTB
Tue Jan 28, 2014 9:24 am
Forum: General Garden Railways
Topic: 16mm 00 gauge?
Replies: 19
Views: 9406

Do you know of any non attraction-esque railways running with this gauge track? Not in the UK, but a friend is building an example of this sort of garden railway on his property. It's a private line, not open to the public. Gauge is 12" and the scale is 6in/ft using 2' gauge prototypes. In SM3...
by GTB
Mon Jan 27, 2014 11:54 am
Forum: Rolling Stock
Topic: Australian Log Bogies
Replies: 9
Views: 6614

So far a background search has not provided much actual detailed build info for scaling. In particular how the bell brake gear linkage actually worked and if there were any draw chains at all fitted to the trucks. From the pics it seems that the motive power unit just buffered onto the cross bars a...
by GTB
Fri Jan 24, 2014 9:15 am
Forum: General Garden Railways
Topic: 16mm 00 gauge?
Replies: 19
Views: 9406

Am I right in thinking Gn15 would be a little under scale for 16mm scale? Not underscale, just a smaller prototype. 00 gauge works out to 12" gauge in 16mm scale, which is one of the ride in scales, just not as big as 15" gauge. Gn15 seems to be used mainly to model estate railways in the...
by GTB
Fri Jan 24, 2014 8:30 am
Forum: Locomotives - Live Steam
Topic: Inside Cylinders
Replies: 20
Views: 10665

Re: Inside Cylinders

I am curious: is there an example of anyone attempting to create a locomotive with inside cylinders (à la LMS Jinty, for example) in 16 or 15mm scale, without resorting to using a motor with oscillating cylinders? There aren't a lot of 2' gauge prototypes with inside cylinders, as the narrow frame ...