I need a change

[andpartington]

Hi I hope u can help me
I am part way through a Project Gauge 1 locomotive and I need a change
I have seen the bottle engine in the current model engineer, and was wondering if there was a nice vertical engine that could be constructed from only fabricated parts in other words no casting I don’t have the money to c**k up casting.

I am only 17 but have made a Stuart h10 and am part way through the protect as well some other little engines I would like something that will be a challenge but can be completed on a myford super 7 and a milling machine all though I can use larger machines at collage where I am studying aeronautical engineering .

Thanks Andy

[Tel]

With fabrication anything is possible Andy - let your imagination go to work. I usually just build 'em with some very rudimentary (or no) sketches, but if you want to work to drawings then almost any of the popular engines can use fabrication techniques rather than castings.

This is my fabricated version of a certain well known engine - still unfinished, but I WILL get back to it.

[Laurie_B]

Hi,Andy
I'd agree with Tel that it is possible to fabricate most parts.
Not sure how much of a challenge you are looking for,but there is a series of articles in Model Engineer magazine,currently,entitled 'Overhead Valve Engines' by Colin Pape.They look as though these engines are made from all fabricated parts.
For something maybe a little more historical,there are quite a number of designs by Anthony Mount,available from Bruce Engineering,now part of Polly Model Engineering.I'm guessing that they could be constructed from fabrications rather than castings.
Or something really very complex,how about a cross compound corliss valve mill engine?Southworth Engines have a number of designs,and for slide valve engines too.
Hope this is of some help.
www.pollymodelengineering.co.uk
www.southworthengines.com

[Jo]

Hi Andy,

May I suggest that you do not try anything as challenging as the Southworth Corliss engines from scratch (the flywheel with the baring gear on the inside would be a headache and the drawings are not at all beginner friendly). Some of Anthony's engines are very makable, with the drawings in the ME it should save a few pennies and they are all well within the scope of your S7.

Any reason for your preference for a vertical engine? Have you thought of a Triple? Looking at my set of the drawings you should be able to knock that up out of what you can scrounge from the college. You will find some details in ME back on 5th May 1995...

Jo

[Tel]

Hey Jo, them internal barring teeth are a doddle, IF you take the right approach.

[lancelot]

Hello folks,
still ''considering'' the single cylinder Corliss as a build project. I have managed to get a visit to the Ulster Museum ''which is currently closed for complete renovation'' to see an example of the one I am tkinking of building, I may also get the chance of seeing it in bits for storage, of course lots of photos will be taken e.t.c.
Not having seen any of the castings from Peter, so TEL you have a few ''BYTES'' from this side of the pond, Please tell me what the machining or set up problems might be with the flywheel?
Wishing you all a Merry Christmas and a happy New year,
All the best for now,
John.

[dscott]

Hi, mum lived in Cheadle once, then we lived in Altrincham. Now down in Devon.
Right I am almost finished on a very simple design of a De-winton with a double expanding verticle engine at the front. so simple as not to use any castings on the whole build so its all out of stock materials. In 5" gauge, not counting the boiler and aiming it at the complete beginner trying to keep it to below £700 for lathe, tools, materials and drawings. So at the end of a few months you have a locomotive.
David.

[lancelot]

Hi Jo,
just got the set of drawings for the ''Corliss'' engine from Peter Southworth and will be getting the castings for a single cylinder shortly, I remember reading in one of your posts that you were going to build the cross compound , was that corliss valve? have you started it yet, any photos?
All the best for now,
John.