The Unofficial Mamod and Other Steam Forum

alan2525 · Posted: Wed Mar 26, 2008 12:54 am Post subject:

This is one of the other projects I was working on - lathe tool storage and milling machine tool storage. Never being able to find the right bit or buying another and then finding I already had one was beginning to annoy....I know it's a bit anal having everything put away in it's place with a label but what the hell!

Just cut from 3mm MDF on the cnc machine again!

I actually made loads of these, for taps and dies, reamers etc too.

alan2525 · Posted: Tue Apr 01, 2008 10:50 pm Post subject:

Heres the latest progress on the loco! I've cutout the sidetanks and made some progress on the cab. I've also drawn out the footplate, steps and boiler support too. So at least I know how the thing is going to fit together! I think it's starting to look quite handsome!

First Image: Side tank cutout from Brass - Holes drilled for rivets...lots of them too!

Side tank folded up along the score lines ready for rivets!

Nameplates cutout for Loco!
http://img370.imageshack.us/img370/8669/dianenameplatesgc6.jpg

Lastly - Back of Cab cutout, pictured alongside a Talyllyn Coach for size comparison.

andysleigh · Posted: Tue Apr 01, 2008 11:03 pm Post subject:

its looking beautiful.

cant wait to see it when its done

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tmuir · Posted: Wed Apr 02, 2008 12:45 am Post subject:

Nice, did you cut them out by hand or use your machine to do it?
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A nice example of an Australian made Scorpion Donkey Engine

alan2525 · Posted: Wed Apr 02, 2008 11:29 am Post subject:

yep - I used my machine to cutout the parts for the side tanks. I'm trying to use it as much as possible, probably the only real parts I'll have to make by hand is the smoke box door and the turned parts. Smokebox door will need to be fairly hefty brass and would take an age to machine the curved shape in it. I'll probably step it out into the rough shape on the lathe and then try to file it to the required curve...ample use of emery cloth too!

tmuir · Posted: Wed Apr 02, 2008 12:04 pm Post subject:

I did think you did it on your machine as the edges are all cut so perfectly.

I've yet to master cutting a perfect straight line in thin brass sheet.

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A nice example of an Australian made Scorpion Donkey Engine

alan2525 · Posted: Sun Apr 06, 2008 9:39 pm Post subject:

I've made most of the cab for the loco now, next step is to work on the chimney and the flared bit around the bottom where it meets the smokebox and a decorative part on the top! I thought I'd finish off the front of the loco to balance up the cab at the back! There's no real logic to making this loco apart from just making the bits as I think of what needs doing!

I've made a couple of drawings for those parts. Now just how best to make them!

I found this on youtube, it's a form tool made using some silver steel or drill rod: http://youtube.com/watch?v=81ukA3iN31Q

Should be good for the radius on the chimney cap. For the flare on the base of the funnel. I'm still not sure how to go about this. One suggestion was this little accessory tool:

alan2525 · Posted: Mon Apr 07, 2008 11:28 pm Post subject:

A few more pics of the latest additions to the loco!

It's feeling a little more solid now and starting to come together, it's nice to see how the burner will fit in, I haven't really looked at where the various "bits" are going to go - gas tank, radio gear, reversing linkages etc.

Now it looks more like a loco it's easier to get an idea of how much space is in the cab. It's almost as much space as a Roundhouse lady Anne in there! Not quite as wide though! Gas tank should fit alongside the boiler at the front of the cab, with radio gear in a dummy bunker at the rear of the cab, batteries under the roof. Hopefully I "might" be able to fit some minature servos under the floor, and cook 'em up with the gas burner if it gets windy!!

Combustion Chamber made and loosely fitted in place

Combustion Chamber parts

Combustion chamber alongside - paper trial version

The combustion chamber is based around the Mamod part, it's about 12mm shorter as the cab on the loco projects further forward. I've also added an extra side piece to help to protect the burner from the wind and channel the flame a little. On the original loco this is provided by the frames which mate up against the side of the burner. On my loco as the frames are wider I've added these parts. Also the burner sits a little higher than in the mamod and is actually at approx the same level as the footplate.

oldstuff · Posted: Tue Apr 08, 2008 3:02 am Post subject:

Beautiful workmanship, Alan. Great to see all the pics of it coming together.
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-Chuck

Twin-cylinder, CSE-3

"Put that in your Dremel!"

steamyjim · Posted: Wed Apr 09, 2008 10:10 am Post subject:

Looks brilliant!

Get some plans done

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alan2525 · Posted: Thu Apr 10, 2008 10:18 pm Post subject:

steamyjim · Posted: Fri Apr 11, 2008 9:21 am Post subject:

Those lamps are brilliant!

I'd realy love to have a go at building my own version of this loco

_________________
Land Of Hope and Glory,
Mother of the free,
How shall we extol thee?
Who are born of thee?

Rob · Posted: Fri Apr 11, 2008 10:09 am Post subject:

looking good alan, its realy taking shape now. keep up the great work

Johnny E · Newbie Joined: 12 Nov 2007 Posts: 45 Location: Birmingham

A truly stunning effort on the entire loco but those lamps are magic!

I'd buy some