Llwyndrissi Halt.

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PinkNosedPenguin
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Re: Llwyndrissi Halt.

Postby PinkNosedPenguin » Sun Jan 14, 2018 9:43 am

A bit of déjà-vu here - isn't this the same film you posted on 28th Dec . . . ?
Good though :D

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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Tue Jan 16, 2018 7:21 pm

Probably. :lol: You can tell how much I enjoyed it!

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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Thu Jan 25, 2018 4:17 pm

While the work in the workshops has been slow, some workmen and the local minister have decided to take a look at the internal features of the coach, in preparation for its return into traffic in the near future. There has been much news about this on the railway as it will make quite a suitable coach for the line that is being built..
The workmen were converted toy soldiers and do well in their new civilian role!
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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Sun Feb 04, 2018 11:13 am

It now has wheels! Pictures also show what it used to look like along with their origional chassis, which is wider and used to be longer when it had its balconies!
It is still not quite finished yet as needs to have the chassis adapted ready so I can fit couplings and then the underneath needs painting.
I had to use cast resin axlebox assemblies which have had Romford (Now Makits) top hat brass bearings fitted and Romford 10.5mm wheels were used rather then using a ready made 00 gauge chassis, as I needed to reduce the height of the coach to a more acceptable level. If I had used a Dapol or Hornby (Or any other make) ready made chassis it would be a cm higher which would mean its steps would be high and its roofline would be towering above the other coaches.
So from an 0 gauge toy to a 0-16.5 gauge toy (Uhm.. I mean model) for the price, I can't go wrong. (The green one is how it used to look. The red is how it looks now).
All I need now is to fit some centre buffer type couplings and paint the underneath...
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PinkNosedPenguin
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Re: Llwyndrissi Halt.

Postby PinkNosedPenguin » Sun Feb 04, 2018 5:44 pm

Another nice addition to your fleet - and one with 'character' . . . :D

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Bufferstop
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Re: Llwyndrissi Halt.

Postby Bufferstop » Sun Feb 04, 2018 8:51 pm

Pity Faller never stuck with the format. A toy range that was basically 0/16.5 should sell reasonably well, when you look at what people pay for LGB.
Growing old, can't avoid it. Growing up, forget it!
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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Sun Feb 04, 2018 9:16 pm

Well. The coach had to be reduced in width by around 1.5 to 2 cm, and had to be reduced in height a good 4 to 5 cm. The length I reduced as I could have either used it as it was, but convert it to a bogie coach to get round my tight curves, but I wouldn't have been able to get the height sorted, so I decided to make it as a 4 wheel coach so I could make it work with my loading gauge. If you look at the chassis, it used to fit inside the coach so the coach width was another 0.5 cm wider, and the roof would be wider again. If you take a look at the edge of the roof, the little lip at the edge used to be on the inside of the coach body.
While some narrow gauge lines did have a wider loading gauge like the Vale of Rheidol and the Talybont and Hafan, my issue is that I already have at least one coach and a brake van which are quite narrow, so the differences would be a bit to great had I not reduced the width to be more inline with my other coaches.
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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Thu Feb 22, 2018 10:26 am

Nowworking on some bufferbeams for the coach ready to fit some central buffers... :)
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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Fri Mar 02, 2018 3:02 pm

My next project has forged ahead as an answer to an issue I have found. My panel controller works fine on 18V AC as an input, but trains run a bit slow if I try using a 12V DC input. Though I did expect a slight reduction like I had when testing many years ago with a handheld controller, I have found that it is a bit too slow fore my liking. Ideal speeds to slow the 0-4-0's down a bit, but other locos it is not ideal.
The answer to this is to start building my own controller designed to be as simple as possible so I can get the full advantage of the battery power without the controller sapping any of the performance as the current goes through rectification etc.
Fortunately I have the remains of an old Triang controller which consist of the speed knob part to work with. I will use a bulb as a form of overload protection.

So here is a start to my PCB which has been cut to size ready for use.
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PinkNosedPenguin
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Re: Llwyndrissi Halt.

Postby PinkNosedPenguin » Fri Mar 02, 2018 5:28 pm

Hmmm not too sure what I'm looking at in those pictures (!) but I expect all will become clear in the fullness of time :lol:

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TimberSurf
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Re: Llwyndrissi Halt.

Postby TimberSurf » Fri Mar 02, 2018 5:28 pm

It would be easier to get a step up Buck converter from china for a £1! :lol:
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Lumsdonia <--- Hit link to go to my website for full story and wiring advice!

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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Fri Mar 02, 2018 5:40 pm

Here are a few more pictures. (Do buck converters run on 12V batteries? Do you mean transformers? The plan I have is to run the layout on my little 12V battery. I actually have 12V DC transformers built into plugs which were being thrown out. They were used as battery chargers for kiddies 12V scooters I believe).
This will be a centre off type controller. You can see the Triang origions!
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PinkNosedPenguin
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Re: Llwyndrissi Halt.

Postby PinkNosedPenguin » Fri Mar 02, 2018 5:54 pm

You're making your own potentiometer :?:

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Mountain
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Re: Llwyndrissi Halt.

Postby Mountain » Fri Mar 02, 2018 7:26 pm

The parts are already made. All I'm doing is giving them a new frame to house them. The next bit I'm making are the spacers (I'm using wood) to house the resistance wire part.

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TimberSurf
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Re: Llwyndrissi Halt.

Postby TimberSurf » Fri Mar 02, 2018 7:53 pm

Mountain wrote: Do buck converters run on 12V batteries? Do you mean transformers?

Yes 12v in - any voltage out! (variable from 12 - 40v) the trade off being they draw more current to supply higher voltage. Ebay example

It is NOT a transformer, it is a sophisticated inverter which is very efficient and uses BEMF of an inductor.
A transistor between the input and output of the Buck Converter continually switches on and off at high frequency. To maintain a continuous output, the circuit uses the energy stored in the inductor, during the on periods of the switching transistor, to continue supplying the load during the off periods.
Image
Lumsdonia <--- Hit link to go to my website for full story and wiring advice!


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