Warren Branch

[Andrew P]

See previous page.

Edited August 19, 2020 by Andrew P

[Andrew P]

Just a thought, there are several different loads with these Lorries so by making it removable, you could vary it for Photo Shoots.

[chuffinghell]

1 hour ago, Andrew P said:

Just a thought, there are several different loads with these Lorries so by making it removable, you could vary it for Photo Shoots.

Thanks Andy, whatever load goes on will be permanently attached so I can keep the chains taught

[MrWolf]

Making chains look taut is a real pain. I have cheated in the past by securing one end of a length of chain to the underside of the bench with fine wire and hanging a heavy washer on the other. This pulls the chain tight before brushing very thin superglue along the chain. It then becomes like a bar which can be bent over the item to be lashed down before painting.

[AlfaZagato]

Magnetize the ends of the chain?

[chuffinghell]

18 minutes ago, AlfaZagato said:

Magnetize the ends of the chain?

good idea but in this case the chain is brass and the hooks are plastic 

[richbrummitt]

The real chain for securing would have a tensioner somewhat like a screw coupling. The length can be adjusted here to make it taught. 

[MrWolf]

Either a simple turnbuckle tightened with a pry bar or the tubular type with a ratchet lever of the type still used on HGV lowloaders. 

Cue somebody making a scale one that actually keeps the chains taut! 

[57xx]

21 hours ago, Ponthir28 said:

Load the gear wheel. Gwr might have had specialists wagon for the load. But my guess is they if not available they would use what was.

 

More to the point, it would depend on if the load fitted within the loading gauge. The Morels and Aeros where built with holes in the floor to help keep the prop/screw load in gauge. I think Chris's gear wheel would be fine on his Loriot.

 

Stick with it Chris, you are doing some excellent modelling!

[Bluemonkey presents....]

Agreed if it needed shifting then it got shifted

Edited August 20, 2020 by Bluemonkey presents....
dropped me H's

[chuffinghell]

2 hours ago, 57xx said:

 

More to the point, it would depend on if the load fitted within the loading gauge. The Morels and Aeros where built with holes in the floor to help keep the prop/screw load in gauge. I think Chris's gear wheel would be fine on his Loriot.

 

Stick with it Chris, you are doing some excellent modelling!

 

I'm pretty sure it's within loading gauge?

 

From the top of the rails to the top of the gear is 38.9mm (9ft 8-1/2")

 

2 hours ago, Bluemonkey presents.... said:

Agreed if it needed shifting then it got shifted

 

That's what I hoped but once doubt is cast I go into 'panic mode'

[chuffinghell]

On the subject of doubt being cast, I was looking though my GWR Wagons book and noticed the Loriot L drawing was only showing brakes and DC lever at one end 

 

Apparently The photos I've been looking at are following a later upgrade during nationalisation

 

If anyone knows for sure I'd appreciate the info

 

I'm pretty sure I will be able to cut them off one end without doing too much damage, I'm getting quite good at having to do things more than once 

 

Edited August 20, 2020 by chuffinghell

[57xx]

Had a look in the wagons book and sure enough you are correct, they were built with single ended DCII brakes. I couldn't find anything in the wall of text about when they were upgraded, I presume to meet the BoT requirements of being able to apply brakes from the either right hand end of the wagon.

[chuffinghell]

13 minutes ago, 57xx said:

Had a look in the wagons book and sure enough you are correct, they were built with single ended DCII brakes. I couldn't find anything in the wall of text about when they were upgraded, I presume to meet the BoT requirements of being able to apply brakes from the either right hand end of the wagon.

Altered in 1952.....if I’ve read this correctly http://www.gwr813.org/pagew69.html 

[chuffinghell]

14 minutes ago, 57xx said:

you are correct

That doesn’t happen very often 

[chuffinghell]

I’ve now produced two 3D models

 

The original one with brakes both ends and another with brakes at one end only so once I’ve finished if there is any interest I’ll make both available to buy from shapeways to suit people’s requirements.

 

I’ve had a quick look and I’m confident I can modify the one I’ve already had printed.....when I get chance because we’re both off work next week and I suspect I’ll be helping in the garden  I’m not keen though

[FoxUnpopuli]

How about modelling up some heavy machinery castings? 

 

 

This looks like a lathe bed being machined, it seems about 8 feet long, but I'm sure some Googling will find you some interesting other big castings.  Loco machine shops muct have had some whopping lumps of metal.

 

Edit: Wrong country, but check these out! 

 

Edited August 21, 2020 by FoxUnpopuli

[chuffinghell]

On 18/08/2020 at 20:40, Ponthir28 said:

Trying not to be negative but I think it would look a lot better with more gear teeth.

I managed to update the drawing before it went to the printer so I changed the gear to have more teeth as you had suggested and it looks much better. Hopefully it will arrive towards the end of the week

 

It should hopefully look less like a Tecnic Lego cog 
 

Edited August 21, 2020 by chuffinghell

[Rowsley17D]

On 20/08/2020 at 18:31, chuffinghell said:

we’re both off work next week and I suspect I’ll be helping in the garden  I’m not keen though

 

I shouldn't worry too much the forecast is not all that good.

[chuffinghell]

I purchased another two Alan Gibson 10.5mm wheels in the hope that these would be better.....

 

.... I was wrong. The hole in the wheel is off centre on all of them causing the eccentric cam like movement up and down

 

So I had an idea

 

What if I crossbreed Romford bogie wheels....

 

....with Gibson Wheels...

 

....Congratulations it’s a Romgibfordson wheel set that runs concentric

 

I've also looked at removing the brakes from one end, looks worse in the photo than it actually is, difficult to see on the photo but the rivet detail remains untouched 

 

You can’t make an omelette without breaking eggs

Edited August 22, 2020 by chuffinghell

[MrWolf]

I can understand your frustration. As an engineer I can't see what is so difficult about mass producing a wheel that is concentric. We don't seem to have come so far in that respect from the days of Tri-ang split axles. 

As Rowsley said, I wouldn't worry about spending much time in the gardening punishment detail next week. I do sometimes miss being able to grow veg, but our "garden" consists mainly of ancient cobblestones, half a dozen plant tubs and the old rusted out doors from Miss Riding Hood's Triumph Herald.

[chuffinghell]

8 minutes ago, MrWolf said:

I can understand your frustration. As an engineer I can't see what is so difficult about mass producing a wheel that is concentric. We don't seem to have come so far in that respect from the days of Tri-ang split axles. 

As Rowsley said, I wouldn't worry about spending much time in the gardening punishment detail next week. I do sometimes miss being able to grow veg, but our "garden" consists mainly of ancient cobblestones, half a dozen plant tubs and the old rusted out doors from Miss Riding Hood's Triumph Herald.

I suppose the main problem with mass production is once the equipment is set up wrong it makes them all wrong. They will manufacture hundreds/thousands until the error is corrected (if at all) by which time all those hundreds/thousands have already gone to suppliers and consumers
 

I’m an engineer myself everything I draw up for manufacture has a tolerance of +/- a gnats co*k (or I reject it!) although it’s low volume not mass produced

[sb67]

I never realised you could have so many problems with wheels, I've always took it for granted and thought they all run true, hope you sort it out Chris.

[chuffinghell]

38 minutes ago, sb67 said:

I never realised you could have so many problems with wheels, I've always took it for granted and thought they all run true, hope you sort it out Chris.

I’ve not had this problem with their 12mm wheels, it might just affect the 10.5mm wheels?

 

I’ve emailed them about the issues but I don’t expect a reply

[MrWolf]

I was used to working to aircraft tolerances, which would also apply to the moving parts of model trains. I suspect that the problem lies with the manufacturer's QA procedures.