The Unofficial Mamod and Other Steam Forum

airspyder · Posted: Tue Jun 19, 2012 4:16 pm Post subject:

Ok,
Here's my little firebox so far.
I drilled and tapped the end plates,The upper holes are through holes and pretty easy to tap, I don't like tapping blind holes with cheap little hardware store taps,
So on the lower ones I tapped into a cross hole which made it easier to clear out the chips as I tapped.

Next I cut up some copper that was on hand, I would have used tin but all my scraps are getting too small, So it was copper, Brass, or another trip to the store.

Just a bend on the bottom end.

and a slight curve at the top.

A pretty good fit.

Now a few holes and I can tighten things down.

Here's a side view

I guess it's a bit of plumbing next.

The Denying Dutchman · Posted: Tue Jun 19, 2012 4:53 pm Post subject:

Looking good.

_________________
Paul

belugawhaleman · Posted: Tue Jun 19, 2012 6:21 pm Post subject:

Good work

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" If you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does". G. Marx

When your the joke of the neighborhood, Why should you care if you're. feeling good? Supertramp.

steamtrack · Posted: Tue Jun 19, 2012 8:42 pm Post subject:

Coming on nice
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superbiker_uk · Posted: Wed Jun 20, 2012 5:30 am Post subject:

Excellent progress - looks great!
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"...Not all those who wander are lost..." J R R Tolkien

Les · Posted: Wed Jun 20, 2012 7:44 am Post subject:

It's so good it looks as if it is being produced professionally.
_________________
Les - Don't panic - it's your round next.

http://www.bucketofsteam.co.uk/

airspyder · Posted: Wed Jun 20, 2012 11:19 pm Post subject:

Hi guys, Well today I got things bolted down and ran a steam pipe to the reverser block, I hooked a fuel supply to the burner for a test steamup.

Everything was going great, the new firebox worked just fine and the pressure was up in no time

Then the moment of truth came, I opened up the throttle and .....

CLUNK!!

After things cooled down and I had some lunch I took a look at things and discovered this

One of the piston rods had become Unpressed.
So that explains the CLUNK!!

I swapped those out for a different set of cylinders and had a much better test.

I'm going to have to scrounge some more parts to finish both trams so until get those, and reattach my piston to the rod I'll be mainly working on this one.
I hope to try it on track tomorrow.

Bill

DolwyddelanLightRail · Posted: Thu Jun 21, 2012 4:19 am Post subject:

Let me guess, you got your cylinders from Dream Steam?

dampfmaschinenjoe 1967 · Posted: Thu Jun 21, 2012 5:04 am Post subject:

This begins to look like a locomotive now

and I believe you´ll find a solution for the broken piston rod. All in all I can only say: Great work !

cheers Joe
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steamtrack · Posted: Thu Jun 21, 2012 9:42 am Post subject:

Great work glad u found a speedy solut/ion to yr problem
_________________
Steamy Windows 4ever

kno3 · Posted: Thu Jun 21, 2012 2:06 pm Post subject:

Very nice work, keep it up. My only suggestion would be to use a thinner pipe for the pressure gauge, the current one looks too thick.
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airspyder · Posted: Fri Jun 22, 2012 2:46 pm Post subject:

Yes they were from Dreamsteam, with the exception of this one cylinder I've had only good experiences with them and thier products.
It's a small problem which I'm sure can be fixed easily.

airspyder · Posted: Fri Jun 22, 2012 2:50 pm Post subject:

dampfmaschinenjoe 1967 · Posted: Fri Jun 22, 2012 3:01 pm Post subject:

The diameter of the pipe can´t be shortened too much as it is needed to show a propper pressure on the gauge.

cheers Joe
_________________
"If manners maketh men as someone said , he´s the hero of the day " G. Sumner

airspyder · Posted: Fri Jun 22, 2012 11:11 pm Post subject:

I went and picked up some tin yesterday and Started tinkering with a body for one of the trams.

\

Good thing I didn't buy a smaller piece due to the fact that my engineering as I go method sometimes (quite often) produces scrap.

Anyway after starting over only once

I ended up with a pretty simple body design, and I've still got plenty of tin for a canopy.

Just a few ideas sketched on, something to give more thought to.

Cheers,
Bill

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