Building a Boiler for a 3 1/2" Gauge Locomotive

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Divided he ad:
Looks like your having fun Stew :thumbup:

I can see this is going to be a good long thread with lots of useful info in it :smart:

Have fun at Harrogate :thumbup:

I'll have to rely on others pic's this year.... Just can't justify the costs at the mo' :(

Ralph.

madjackghengis:
Stew, you have a master's hand with copper, it is a joy to see such beautiful work, I expect I will have to copy that boiler one of these days, when I get around to finishing the steam engine I started before the radial, but has been shelved for a couple years. I have often considered using various odds and ends, such as cappuchino makers and the like, for a boiler for a steam engine, but watching this build makes that feel like cheating to an extreme. Thanks for all the great pictures and for the fine narrative to go with them and explain them. :jaw: :jaw: mad jack

sbwhart:
Ralph/Jack/Graham

Thanks for your comments chaps

Graham there's a guy building a steam pump in Model Engineer at the moment.

Things have slowed down a bit on the boiler build I've got a paying job that will take up some of my time for the next couple of week.

Got a bit done drilled the holes in the Backhead sorry no pics and made a start on the boiler tube.

Marking it out used the mill table as a flat face.

In order to hold the tube steady for cutting I used this clamp I made it a few years back for another job:- can't remember what :scratch:
Just two pieces of wood with a coach bolt.

This is it in use

I used a junior hacksaw to do the business, this one has a sentimental attachment for me my father made it many years ago, I didn't want to use a 12" saw as the tooth space would be too wide for the tube and tend to rip also I wanted to take it steady so I got a nice clean straight cut. As the saw was cutting at an angle I didn't take it past the line I left a bit of metal holding the tube together whilst I did the next cut.

This is the next cut, the tool makers clamp is to to stop the cut ends from vibrating and making a farting noise.

The with a junior blade held in a bit of brass chim complete the cuts square.

This is the cut tube.

The cut will be bent out to form the wings of the firebox, I tried to bend them out as cut but the copper is quite hard so I'll anneal it as I didn't want to force it. As the annealed tube will need pickling I,m at a bit of a stop until I get my pickle bathe made.

I've collected one a two things together for the boiler build.

The black box is a case from an industrial battery fork lift truck or something like that, and will be part of the pickle bath, the bits of ally behind it will form part of my brazing hearth. At the Harrogate show I picked up some of these blankets, for the hearth.

I also have a collection of fire bricks.

Getting there slowly

Stew

Stilldrillin:
Stew,

I thought Kaolin wool was a natural product, when you showed it to me at Harrogate...... :thumbup:

"Will withstand 1000 deg C" :bugeye:

So, what kind of an animal is a kaolin? :scratch:

Do they live near volcanos? :lol:

David D

sbwhart:
Its a sort of goat and yes they live on the slopes of volcanoes in Iceland, thats why their legs are shorter on one side than the other so that they don't lean, the males have short legs on the right and go clockwise around the volcano, the females have short legs on the left and go anti-clockwise that way they can meet up in the breading season which is from April to May, with a hunting season in the autumn October to November, hunters put down bait of good quality coal which apparently they can't resist.

:D :D :D :D :D

Nice one Dave

::)

Stew

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