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Author Topic: LMS Beyer Garratt using Fairburn mechanisms  (Read 2592 times)

GrahamG and 1 Guest are viewing this topic.

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #30 on: November 06, 2017, 04:42:09 pm »
Articulation test with full wiring for DCC sound.

I will convert the plastic to nickle silver once I am sure of clearances etc.


Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #31 on: November 08, 2017, 12:37:18 am »



A bit of chopping and milling of the Skytrex castings and whilst still rough the basic shapes are correct.

I have decided to stick with the plastic articulated section, rather than nickle silver, so that will speed things up.  there are four wires from each end that flex under the structure and will meet at the DCC sound chip in the boiler.  So everything is in place and i need to start concentrating on detail.

I am building two and they both run very smoothly.

Online emjaybee

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #32 on: November 08, 2017, 12:41:44 am »
This is looking fantastic bloke. It's a loco I've always liked, quirky and rare. I've absolutely no use for one of these, but it doesn't stop me coveting yours.

Top job.

 :thumbsup:
Sometimes you bite the dog...

...sometimes the dog bites you!

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #33 on: November 08, 2017, 12:55:50 am »
A comparison of the unmodified kit with GF Black 5 mechs.  and the correct articulation with the Fairburn mechs.






« Last Edit: November 08, 2017, 01:00:48 am by Snowwolflair »

Offline Foster

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #34 on: November 08, 2017, 11:04:39 pm »
 What a project.
 Here in South Africa, the Garratts were/are wonderful loco's. The huge GMAM,s were running in Pietermaritzburg in the 1960's and I often went to them hauling heavy goods trains up a steep climb out of the city.
 Good luck, these loco's were special.

 Foster :thumbsup:

Offline Dr Al

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #35 on: November 08, 2017, 11:39:50 pm »
Articulation test with full wiring for DCC sound.

I will convert the plastic to nickle silver once I am sure of clearances etc.



Watch the valve gear on one of them - the eccentric rod has loosened off - visible at 0:09 on the leftmost chassis.

Cheers,
Alan

Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #36 on: November 08, 2017, 11:41:23 pm »
When I was young I grew up in Glasgow and saw some of your Garratts' hauled down to the docks and craned into the holds of ships bound for South Aftrica, Rhodesia and Zambia.

Something you don't forget.

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #37 on: November 08, 2017, 11:42:34 pm »
Articulation test with full wiring for DCC sound.

I will convert the plastic to nickle silver once I am sure of clearances etc.



Watch the valve gear on one of them - the eccentric rod has loosened off - visible at 0:09 on the leftmost chassis.

Cheers,
Alan

Yes I spotted that on the video as well.  A 2mm nut spinner arrived in todays post  :D

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #38 on: November 08, 2017, 11:49:45 pm »
To mill the chassis a complete strip of the valve gear was necessary and the poxy nut spinner they provide with the models do not fit the screw heads, so pliers or tweezers have to be used.  You just cannot get them tight enough.

Anyway Expo 2mm/14BA nut spinners do the job nicely, and that will go for all new Farish using the 2mm head bolts.

Offline Dr Al

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #39 on: November 08, 2017, 11:59:22 pm »
the poxy nut spinner they provide with the models do not fit the screw heads

Farish don't supply these with their models - it was probably a Dapol one you tried, which would explain why it did not fit.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #40 on: November 09, 2017, 12:01:30 am »
They don't fit the Dapol ones either. :smiley-laughing:

I have resorted to proper tools.

Offline Dr Al

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #41 on: November 09, 2017, 12:07:27 am »
That is definitely true about the Dapol ones - they aren't brilliant.

I found one Dapol that has a deeper hex head than most of them do, which works well and is stashed as the go-to; though even it doesn't work on some of them as some of the bolt heads on Dapol aren't crisply formed.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #42 on: November 09, 2017, 08:55:55 am »
The link goes to a test page!

Offline Snowwolflair

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #43 on: November 12, 2017, 02:03:32 am »
A little more progress with the tidying up of the main body panels, screw fitting the boiler, and running in the mechanisms.

The front articulation points are now made of nickle silver rod inside PTFE sleeves, and I have added washers to hold the body square and at the correct height.

The Lychett castings are quite good the only adaption required was to shorten the overlong tank (designed to disguise a Farish black 5 motor blocks) to the correct length and to remove the hinge pinion from the bunker as it is no longer required.

There are holes in the wrong place and a lot of details to add but its taking on the character of the original very well.

Sorry about the fish-eye camera distortion.

« Last Edit: November 12, 2017, 10:16:17 am by Snowwolflair »

Offline Bealman

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Re: LMS Beyer Garratt using Fairburn mechanisms
« Reply #44 on: November 12, 2017, 02:18:10 am »
Looking great! You're right - starting to look like the real deal.  :thumbsup:
Vision over visibility. Bono, U2.

 

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