Re: G1 class 22 build

[Simon Dunkley]

G1 class 22 build

Well, there seems to be a degree of badgering going on here, so I may as well report on the progress made 6 years ago...

Fred has designed the bogies to have enclosed gearboxes (good idea for outdoors) with one (driven) axle fixed, and the other sliding up and down in slots, with a wire spring. The real thing has the wheels fitted into outside bearings, of course, and no unsightly square boxes showing behind the wheels. Needless to say, I had other ideas, for 3 reasons:

1) I was not planning to run in the garden, so did not need the enclosed gearbox showing behind the wheels;
2) I had other ideas about motorising the loco;
3) All axles would be sprung.

As I had already ordered the wheels from Mark Wood, albeit to ScaleOne32 proportions* (the first wheels made thus!) and they had 3/16" diameter axles, I could use Slater's 0 gauge sprung axleboxes.

The first task, therefore, was to re-profile the n/s functional frames to follow the profile of the excellent whitemetal castings, and to cut a suitable slot for the axleboxes. This is a simple scribe and get the piercing saw out job, cleaning up afterwards with files, etc.

The pictures more or less speak for themselves.

 

[Pugsley]

G1 class 22 build

Mashima 1833 plus 26:1 gear set on each axle. Problem was in getting the four motors to work together: they were not all the same speed, you see, and inevitably one would start running too fast.

This sounds like my kind of project  8) ;D  Have you tried wiring all 4 motors in series?  In theory, at least, it should even out the speeds.

 

[Simon Dunkley]

G1 class 22 build

Right, the "chassis".

This is essentially a straightforward fold-up job in lovely N/S, with just a strengthening rib or two and a pair of bolsters to add: only needed a 50W iron, too - one of the benefits of it not being brass!

As I was thinking of using RG7s, I needed to modify the motor holes a bit - now I need to fill them in! 

 

[Simon Dunkley]

G1 class 22 build

This sounds like my kind of project  8) ;D  Have you tried wiring all 4 motors in series?  In theory, at least, it should even out the speeds.

I have some traction motors in stock, designed to my specifications by ABC gears.

However, considerable modifications would need to be made to the bogies to accommodate this, and they are ear-marked for the class 29 (which will also need a lot of modifcation!) or maybe a Derby type 2...

The real thing was a B-B, not a Bo-Bo, and all wheels were driven in unison, providing excellent traction characteristics.
What I have in mind is to replicate this, with a Slater's FD01 gearboxes on each axle, connected via cardan shafts and UJs to a step-down gearbox from a large coreless motor (2642 bought for ?6 as surplus many years ago) in the body. Time will tell...

 

[Simon Dunkley]

G1 class 22 build

The 8 pictures limit meant this trial fitting of chassis to body was omitted from a previous post, but to please those who want to know what the body looks like, here is an indication.
It's about 19" long, from memory - maybe a bit less.

 

[Simon Dunkley]

G1 class 22 build

The front of the chassis has a receptacle for the coupling...

 

[28ten]

G1 class 22 build

Thanks for posting this 
Now that's what a multimedia kit should be like - using the appropriate materials in the best way

 

[Simon Dunkley]

G1 class 22 build

The first bit I did after reading the instructions thoroughly was actually the cab interiors, to get a feel for things.

Let me say now that the parts and materials were simply superb.
Having said that, there should be only two indicator dials in front of the secondman, and the middle two need removing: best done in the flat.
Needless to say I was only told this after completing the cabs.

You get a pair of fold up etchings, and some whitemetal castings (seat bases), some brass castings (control levers, etc) and some brass wire - seat columns.

 

[Simon Dunkley]

G1 class 22 build

And you end up with these:

 

[lancer1027]

G1 class 22 build

Hi Simon, this is a very interesting thread . i shall be watching with interest

Rob :wave:

 

[Geoff]

G1 class 22 build

Hi Simon,
Getting you to post some pictures of your Class 22 build has been like getting blood out of a stone but well worth the wait. The quality of the kit and build both look superb and you simply must press on with your Forest of Dean project because if this is a taster of what is to come then we are in for a treat.

Geoff

 

[marsa69]

G1 class 22 build

Not my normal cup of tea but on this occasion I think I could develop a taste 

Well done Simon on a very good build so far. Looking forward to the rest of this now 

regards,

Mark

 

[Simon Dunkley]

G1 class 22 build

Thank you all.

Looks like I might have made a rod for my own back.
As Jordan said, "Bummocks". (A word that has been well received in our household.)

 

[hoppy504]

G1 class 22 build

Simon,
Many thanks for your postings. You have kept me captivated, am looking forward to further progress.

Why was I born with two left hands?.

John.

 

[Jordan]

G1 class 22 build

As Jordan said, "Bummocks". (A word that has been well received in our household.)

... about the only thing I ever enjoyed from the Sarah Kennedy Show on Radio 2; the Most Irritating Old Bat on the Radio.

Fortunately she has now quit....

I too will be watching and  in admiration. My local model shop had one of these Class 22s in (built & everything!!), but not only was the price beyond me (?800IIRC; a bargain in G1 terms??) but it was BFYP, and what I really like is, well, is what I did on my SB 22; GSYP as D6320....
I'll also be interested in your Forest of Dean plans... will you model an actual location, or something with a mix of "the best bits"..? :scratch:

 

[Ressaldar]

G1 class 22 build

Simon,

having seen one on a friend's workbench some time ago, I am looking forward to seeing the completed version.

regards

Mike

 

[Simon Dunkley]

G1 class 22 build

... about the only thing I ever enjoyed from the Sarah Kennedy Show on Radio 2; the Most Irritating Old Bat on the Radio.

Agree with you there!
Which is why I didn't listen.

My local model shop had one of these Class 22s in (built & everything!!), but not only was the price beyond me (?800IIRC; a bargain in G1 terms??) but it was BFYP, and what I really like is, well, is what I did on my SB 22; GSYP as D6320....

That has already been done in G1, as you know!
BFYP is my personal preference, though.
Does the loco have spoked wheels?
?800 is possibly slightly high: cost of materials is about ?700 and it is possible to get one for this. I have a friend who tried to sell me one for that price, but the wheels were solid steel discs and not the 11 spoke jobbies, which I pointed out to him would cost me another ?170 or so, and was he prepared to drop his asking price by that amount?
No.
He hadn't built it, but bought it for the same price as he was told that was how much all the bits cost! I think he was diddled a bit.

One being for sale in a model shop is an interesting and positive development: I would like to know a bit more.

I'll also be interested in your Forest of Dean plans... will you model an actual location, or something with a mix of "the best bits"..? :scratch:

Not an actual location: I have 12'8" available for scenic work, and a further 4'4" for a fiddle yard before I open the garage door!
However, I have a few ideas I am mulling over.

It is, at the moment, just an idea. Little more than a track plan for a "Martini" layout. It could just as easily be a china clay facility in North Devon, or something completely different somewhere near Inverness!

 

[Jordan]

G1 class 22 build

( re: D6320) That has already been done in G1, as you know!

Certainly do...

Does the loco have spoked wheels?
?800 is possibly slightly high: cost of materials is about ?700 ...
One being for sale in a model shop is an interesting and positive development: I would like to know a bit more.

I should've made the past tense clearer; it was at least a year ago they had it, and not for long!! IIRC it did have spoked wheels. It was fully built and painted. Considering that I  have seen at another model shop a built-but-unpainted MMP Class 31 for sale at ?800, just ?100 over cost of materials doesn't sound too bad for someone's time to build that 22. :scratch:

(re layout plans)  Little more than a track plan for a "Martini" layout. It could just as easily be a china clay facility in North Devon, or something completely different somewhere near Inverness!

I didn't know Inverness was in Gloucestershire?!?!  ... and you'll have to enlighten me as to what a "Martini" layout is..??

... yeah, I know; keep up at the back etc.....

 

[Simon Dunkley]

G1 class 22 build

and you'll have to enlighten me as to what a "Martini" layout is..??

"Any time, any place" etc.
Your little 0 gauge layout is a classic example, in fact: you can "change" the location by simply running different stock.

 

[Simon Dunkley]

G1 class 22 build

Found a few more pix...

These were all taken with the Mark Wood wheels in place, and you can see the impressive quality of them here.

Firstly, a close up of the "B" (non radiator) end of the chassis - the chassis is handed to suit the detail castings and the cutout made in the body for a slightly loose valence.
Note the cutout to allow for the body-mounted buffers, the brass pivot screw for the coupling mount, and the steel screw for the bogie pivot.