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A forum for all things technical regarding Dobles or steam cars in general.

More Castings to Collect Next Week

The pattern makers and foundries are working hard to progress our parts, some times a bit frustrating when we need to prove a pattern before we make the batch, all sorts here , structural rings for the generator cases, valves, auxiliary par

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Last reply by alsancle·1w

Another Update of the Auxiliary Unit

I have been very busy in the workshop continuing machining the worn out parts in the auxiliary unit . I posted the first 3d adaptive milling operation a couple of weeks ago and now I am following up with the second operation with the billet

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Last reply by alsancle·1w

auxiliary unit update

the problem with old parts that have sat with water in...... these conrods have the outer race of the roller bearing machined and ground into the rod its self, regrinding is not an option as the relative circumferences and roller diameter n

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Last reply by Chris·Jul 21

Turbine Fan

Upon stripping the Fan Turbines I found several problems , from worn bearings , rusted pipes, damaged turbine sections and even labyrinth rings completely missing from one unit ! the close up of the centre of one of the main turbine section

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Last reply by alsancle·Jul 10

New expansion links

We discovered that the expansion links were worn in one engine and broken in F30 so decided that all the engines were probably in a similar condition and set about making these parts. these parts are now ready for heat treatment and then gr

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Last reply by alsancle·Jul 10

draft booster motors

When you start a project and just assume an electric motor is not going to be a problem......... then it becomes apparent they do not exist. after calling 3 companies that advertise bespoke motor manufacture, to discover that they only modi

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Last reply by alsancle·Jul 6

electrolysis

Wow!!! just shows you that not all great ideas are great ideas. at some point in time someone decided an electric water tank level gauge would be a good addition, so they fitted a standard gasoline tank level one, these have an open variabl

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Last reply by alsancle·Jul 3

carburettor update

we have been machining components all week and almost have a complete carburettor as well as progressing well on the draft booster motors ( pics to follow on a separate post) This one is assembled using a new float bowl lid but an original

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carburettor update

someone once said to me that it was always worth taking some time and make fixtures for holding awkward shaped parts, how true, this fixture locates on the taper of the carburettor, with some screws to ensure it does not spin on the nose an

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