[modeleng] Re: [modeleng] 3½ versus 5, going on to Sweet Peas
- From: "JOHN PAGETT" <john_pagett@xxxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Mon, 26 Sep 2005 20:52:46 +0100
Nigel,
If I can add a couple of comments on the Sweet Pea design.
1) The boiler mounting at the firebox end is a pig to make. It's a "Z"
shaped piece of metal that wouldn't go right for me. An alternative is to
make one from a wedge shaped piece of hardwood. It's probably hard to see
how a wedge replaces a "Z", but the top and bottom faces of the "Z" are not
parallel and these become the faces of the wedge. This idea was suggested to
me by one of the guys from our club. I tried (and failed) several times with
the original design.
2) The piston is mounted onto the piston rod with a thread. I don't like
using a thread for alignment in such a critical area. To my way of thinking
the thread should be for fastening, and the alignment should come from the
fit of a tapered or parallel section of the rod in the piston.
Having said that, the Sweet Pea is a fine workhorse and great way for people
to express their own individuality.
Cheers,
JohnP
----- Original Message -----
From: <NIGELBALL@xxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, September 26, 2005 8:15 PM
Subject: [modeleng] Re: [modeleng] Re: [modeleng] 3½ versus 5
Hi all
This is the advice that i was given and have been working on my sweetpea
for
about 12 months, If you get the chance go to the sweetpea rally and talk to
the owners, they all love it, I've also noticed that no two are the same, if
you like to follow drawings as drawn then its a good start, if you like to
add
your own ideas then with a sweetpea you can do it. Also as is narrow gauge
outline its a bit like building a 7 1/2" scale model.
Regards
Nigel Ball
Leicester
P.S. does anybody know when and where the next rally is?.
In a message dated 26/09/2005 20:06:40 GMT Daylight Time,
davebeaman@xxxxxxxxxxxxxxxx writes:
Hi Jem,
I would go for a 5" loco, not to big but big enough to pull. A good first
design, ok it's not a mainline loco, is a Sweet Pea. Many people have
started out with Sweet Peas and many still have them. The castings are
readily available from Blackgates, as are the drawings and advice. The
Sweet
Pea can be lifted easily by 2 people but I wouldn't advise trying to lift
it
on your own. It's all outside motion etc except an axle pump if you choose
to fit one. All is easy access for maintenance and building, easy to fire,
easy to drive and I have had mine pulling 4 adults, 5 kids and the driver,
up a 1;90 bank, ok we didn't break any speed records but we got there.
If you have the time, it is reckoned you can build a Pea in 12 months, such
is the basic design and I have to admit, I won't be getting rid of mine.
So there you go, all the advice from around the world. Let us know how you
go, what your building etc.
Dave.
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