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No.2 Coaling Plant - Scratchbuilding. - More Practical Help - Your Model Railway Club
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 Posted: Tue Dec 21st, 2010 02:13 pm
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Perry
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I cut the two end panels for the housing from 0.040" plastikard using the design and measurements from the Sketchup plans. I then cut further strips of plastikard to form the side walls and ledges, reinforcing the corners with triangular plates.



The top panel needed a couple of small windows for the winding room wall.

I decided it would be a good idea to carry out a temporary dry assembly, using masking tape, to make sure everything was fitting together OK.



I stood it on the layout to see what the overall effect was. It didn't overpower everything, balanced as it was by the large engine shed close by. The whiteness of the plastikard looked a bit stark, but painting will eventually tone that down.

I'm happy that it's all coming together properly and feel that the hardest part of the build is now over so I can press on and finish the main fabrication.

Perry




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 Posted: Tue Dec 21st, 2010 02:25 pm
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Stubby47
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Given that the real buildings were full of coal and machinery and the overhanging hood was probably of a lighter construction, how stable / top heavy is the model ?



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 Posted: Tue Dec 21st, 2010 02:40 pm
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Perry
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Stability is reasonably good at the moment. I think that when the wagon hoisting gear is added, that will brace it somewhat as well. The small buildings and platform at gound level should also improve matters when they are added.

Perry



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 Posted: Tue Dec 21st, 2010 07:33 pm
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Michael Thornberry
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Hello Perry,
Excellent modelling, mate. This should fit-in to your Lay-out very nicely. Well done,
Kind Regards,
Michael Thornberry.

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 Posted: Thu Dec 23rd, 2010 01:23 pm
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Perry
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I had a little bit of fun 'freestyling' this morning, making up a pair of  'jigger drives'. I've not been able to find a definitive design - or any design at all, for that matter - so I made something that I think looks like a bit of fairly heavy machinery.



I made a mirror-image pair of these from scrap plastikard and sprue. They are about 35mm long, 20mm wide and 15mm high. They will fit on the lower platform with the shafts connected to the coal chutes.

Perry



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 Posted: Thu Dec 23rd, 2010 03:49 pm
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Petermac
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That looks suitably "heavy" Perry - whatever they'ere supposed to do .................:thumbs

p.s. Are you still allowed to say "jigger" drives ?........................:mutley:mutley  I think a "jigger" of rum is a no-no  :roll:.



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 Posted: Thu Dec 23rd, 2010 04:51 pm
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Perry
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It appears they operate the 'jigger feeder' - and no, I'm not kidding; it's actually annotated as such on the plans!  It is something to do with feeding the coal from the bunkers through the chutes. There are a couple of small buildings at the base of the structure which hold the 'jigger feeder controls', so I'm guessing the operator could control the rate at which the coal was fed into the tender.

Perry



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 Posted: Thu Dec 23rd, 2010 08:02 pm
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Perry
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A little more progress has been made with the main platform edged off, plating around the chutes and the exposed 'edges' on the upper part have been added, along with the protruding girders right at the top.

The jigger drives have been put it place and the main bunker has been glued up - hence the tape securing it whilst it dries.

The exposed wood of the legs has yet to be covered in plastikard. Some of the edges and joins still have to be smoothed.

The small cabins at the base will be designed and built next.



The overall height is 342mm.

Perry



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 Posted: Thu Dec 23rd, 2010 08:28 pm
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MaxSouthOz
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That's about 13 1/2" in the old money, Perry.  My coaling tower is over 300.  They look OK when they're in context.  It's great building something big, isn't it?



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 Posted: Thu Dec 23rd, 2010 09:17 pm
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Perry
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MaxSouthOz wrote: That's about 13 1/2" in the old money, Perry.  My coaling tower is over 300.  They look OK when they're in context.  It's great building something big, isn't it?
You're exactly right, Max. 13 1/2" is spot on.

I made the mistake of not allowing sufficient space for buildings on my previous layout and was determined not to do the same again. By physically having most of the buildings to hand when I start tracklaying, I will be sure that everything will look as I want it to (I nearly said 'right' :shock:) and that clearances, etc., will be OK. Part of the initial plan was to include this beastie in a layout because they have always fascinated me. I also want an ash plant. This is currently in the design stage. Apart from wanting plenty of room for several big locos, I felt that a large loco shed would be needed to visually balance such large structures as the coal and ash plants. A small shed would have looked lost.

Perry



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 Posted: Thu Dec 23rd, 2010 09:49 pm
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ddolfelin
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I think it's looking very good.
You'll enjoy the painting too.



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 Posted: Fri Dec 24th, 2010 09:57 am
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Perry
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ddolfelin wrote: I think it's looking very good.
You'll enjoy the painting too.

I'll probably need a 4" brush! :mutley

Perry



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 Posted: Fri Dec 24th, 2010 11:37 am
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How many rivets will be needed?



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 Posted: Fri Dec 24th, 2010 11:40 am
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Wayne Williams
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That is looking great Perry! It looks top heavy or should I say tippy? How do you intend to anchor it so it will be solid or the layout?

My luck I'd just keep knocking it over every time I worked around it.

Wayne



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 Posted: Fri Dec 24th, 2010 01:02 pm
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Perry
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Wayne Williams wrote: That is looking great Perry! It looks top heavy or should I say tippy? How do you intend to anchor it so it will be solid or the layout?

My luck I'd just keep knocking it over every time I worked around it.

Wayne

Thanks for the kind comments, Wayne.

A six-inch nail or two driven in with a 3-pound hammer at an angle through the legs should hold it! :mutley:mutley:mutley

Actually, it is surprisingly stable. The plastikard construction is quite light and it doesn't appear to want to fall over by itself. The truck rails should make it even more stable - when I get around to making them. I think the real solution will be to glue a small square of plastikard beneath each of the legs and to secure them - probably with double-sided tape or pins -  to the baseboard, before hiding them with scenic materials. The trouble with making it too rigidly held in place is that a slight nudge may cause damage. I'll just have to be careful!

Perry



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 Posted: Fri Dec 24th, 2010 01:04 pm
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Perry
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ddolfelin wrote: How many rivets will be needed?
Er, none - it's plastic!!!! :mutley:mutley:mutley The prototype was concrete, so that probably had the same amount. :doublethumb

Perry



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 Posted: Fri Dec 24th, 2010 04:45 pm
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Michael Thornberry
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Hello Perry,
A brilliant model, mate, and very well designed/engineered. Perhaps 4 x L brackets secured to "concrete footings" and the leg-uprights. Your Lay-out is looking GReAAAAT,
Kind Regards,
Michael Thornberry.

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 Posted: Sat Dec 25th, 2010 10:06 am
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Perry
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I glued up the bottom half of the structure last evening, then cut and fitted all the leg shrouds from 0.040" plastikard - 32 pieces in all! :shock: I haven't glued the jigger drives in place yet, because I want to paint them before they're fitted, and I want to spray the entire structure with primer and a base 'concrete' colour first.

I've sneaked off to my 'modelling suite' (spare room) to do a bit more filing and sanding this morning before anyone misses me - not that that's likely to happen. Apart from my youngest son, who's watching TV, there's no-one else here - not even SWMBO.

Have a good day, guys.

Perry :cheers



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 Posted: Sun Dec 26th, 2010 08:50 am
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Perry
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I was looking at the jigger drives this morning when I discovered that one of them had suffered from 'creep' - similar to, but on a much small scale than Max's problem, but a damn nuisance all the same. One of the drive shafts had slipped when the glue was drying and was noticeably out of alignment. I had to carefully cut the front end apart and remake it. It was probably only a millimetre or two out, but it stuck out like the proverbial sore thumb. I have a very keen eye for things being level and this certainly wasn't! :thud

Perry



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 Posted: Sun Dec 26th, 2010 10:53 am
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I'm with you, Perry.  exclam:



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