Frame material for Tich

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Frame material for Tich

This topic has 13 replies, 9 voices, and was last updated 5 March 2010 at 09:58 by camper.

Viewing 14 posts - 1 through 14 (of 14 total)

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1 March 2010 at 09:14 #49312
David Clark 13
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@davidclark13
Hi There

The chances of me getting some blued steel up here in Scotland are about zero.

I have some 3 inch x 1/8 inch gauge plate bought for an old project

Would this be suitable for Tich mainframes or would it be too rigid?

Having won a set of cylinders on Ebay last night, it is about time I got this project on the move.

regards David
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1 March 2010 at 09:14 #4983
David Clark 13
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@davidclark13
1 March 2010 at 09:27 #49313
DMB
Participant
@dmb
Hi David,

Wot do u mean, “blued steel?”

My guess is high-carbon known as `gaugeplate.`

As there are only 2 axles and short length, I would think gauge plate would work but very expensive material for such use. I certainly wouldn`t consider it for say, “Nigel Gresley” or any other long-framed multi-driver loco, due to stiffness of steel. It would not flex and on tight curves with very small cleances on a well made new loco., I would think derailments could be a possibility.

Thats what I think but perhaps someone with more experience can throw in their “2pennorth.”

Regards,

John

PS what a glorious sunny morning down here in Brighton.
1 March 2010 at 13:03 #49321
Circlip
Participant
@circlip
No scrapyards in Scotland David?? Commercial vehicle chassis offer various thicknesses of steel.

Regards Ian.
1 March 2010 at 14:20 #49325
David Clark 13
Participant
@davidclark13
Hi There

No scrap yards where I am.

There is nothing where I am.

regards David
1 March 2010 at 14:29 #49326
Redpiperbob
Participant
@redpiperbob16487
Hi David try

B&M steel

Inverness 01463232905

Bob
1 March 2010 at 14:41 #49327
David Clark 13
Participant
@davidclark13
Hi there

Will make a note of them but still

a 250 mile round trip.

regards David
1 March 2010 at 15:07 #49329
Gordon W
Participant
@gordonw
David, I live in N Scot., nowhere near you tho’. But:- try ship/boat repair boys, I know there are some near you, usually more helpful than the scrappys as well.
4 March 2010 at 17:44 #49396
Tony Martyr
Participant
@tonymartyr14488
David

I can’t see how frames can be ‘too rigid’ since the whole point of the frame walls and spacers is intended to produce a rigid structure that is able to deal with the various forces imposed on it. The flexibility that allows for cornering and track irregularities comes from the hornblocks and bogies etc surely?

The first models I was involved with many years ago as a ‘helper’ both had frames made from gauge plate as the owner worker in a toolroom and it was ‘available’

Tony

Edited By Tony Martyr on 04/03/2010 17:45:32
4 March 2010 at 19:06 #49398
Baz
Participant
@baz89810
Hi David,

Nothing at all wrong with using gauge plate for frames, I use it in preference to black or bright steel as it does not spring when cut. The only disadvantage is the price but I think it is well worth it for nice flat straight material. Frames should be rigid, look at all the stretchers etc used to brace them, I agree totally with Tony on this point.
4 March 2010 at 19:21 #49399
David Clark 13
Participant
@davidclark13
Hi Baz

Thanks for that.

Shall cut them slightly overlength and work from there.

Regards David
4 March 2010 at 19:41 #49400
calder percival 1
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@calderpercival1
blued steel was a type of plate produced in production in the days of L.B.S.C the nearest you will get to it now is sheared plate out of an 8 by 4sheet and a local fabrication shop would give you it for coppers. Gauge plate is fine but too expensive to waste on frames after all they are only to hold the cylinders and wheels in place and nothing fancy is needed black strip is also fine and does not distort bright will however if you loosely mark out the frames and then cut out the openings and then turn then mark them out properly they will not move again . It is the locked up energy from when the material was produced that escapes and distorts when you cut the material.

Hope that helps calder
4 March 2010 at 20:00 #49403
David Clark 13
Participant
@davidclark13
Hi Calder

Price was not a problem, I have some suitable gauge plate in stock bought a few years ago because it was cheap at the time.

regards David
5 March 2010 at 09:58 #49412
camper
Participant
@camper
gauge plate for frames, luxury bought a cheapo cuts all saw from aldi turns a old chassis leg into valuable raw material in seconds 6mm ms without complaint wonderful for the impecunious ps chip fat is great in ml4 headstock bearings and the workshop heater
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