I came across this article in a 1908 model engineering magazine: **LINK**

My ambition always exceeds my ability so I thought I would share my progress and hopefully get some helpful advice from the experts here. My first problem was the fact that the drawings only contained a minimum of dimensions; not the sort of detail you would expect from today’s drawings. Fortunately I came across some detailed drawings from Julius de Vaal, so that was a relief, see below:

First the chassis. Not a problem so far, except the design called for channel section. I could only find some box section so I had to remove one side.

Next up the front and rear suspensions, more to follow

Bob

Thanks Werner. You’ve certainly built a great model and posted some great videos. I don’t think mine will be capable of riding on, but I would like it to be a working model. The boiler fills me with dread since there is so much silver soldering to do. But that is some time in the future. I am prepared to make a few compromises, for example since I have no castings the pumps will be prefabricated. Also not to happy about making the crankshaft with the valve eccentrics in the proper position. So I am going to use two Stuart 10V cylinders mounted back to back. By doing this I can fit the eccentrics from either end. Also I can’t imagine making the wheels in wood at my scale, so I will prefabricate them in steel.
I have seen a beautiful model at the Beamish Industrial Museum and that had fire engine red wheels. So if I go down that route it doesn’t matter what the material is. I’ve seen another photo at a stately house called Wentworth House, this is quite near to where I live, so as soon as this blooming lockdown is over I’ll try to find it. Anyway, that book sounds interesting, so I’ll try to get a copy.
Bob

Steering components

Front assembly

Thought I’d better paint the model so far. To stop it rusting and get a bit of Fire Engine Red !!!

The most interesting part of the water pump is the air cylinder. The original design was a bit boring so I decided to use the design of Tubal Cain which he used for his Lady Stephanie bean engine. This had a fluted cylinder and a relief valve.

Machining the flutes

Turning the end with my homemade ball turning attachment

The final assembly

Here's the ball turning photo that I have been having such problems with:

I'm actually quite proud of the attachment as it does just what I wanted.

Bob

Disaster! Just finished the cylinder bottom cover. Discovered to my horror that one of the studs in each cylinder will pass straight through the inlet steam passage. I suppose that's what you get when you try to change someone else's design on the fly and don't think far enough ahead.

So I have a few choices:

1. Throw it away and start again.
2. Abandon all hope of ever making a working model.
3. Plug the holes and re-drill them turned through 180 deg.
4. Ignore that position and only use four instead of five studs.

Not sure the best course of action. Any advice would be most appreciated.

Edited By Bob Wild on 06/08/2020 00:11:00

I love those stories of real people in the old days. look at my first post and the link to the Model Engineer from 1908 and the fascinating things you can do with this new fangled electricity.

Anyway, I carried on before getting Werners suggestions and plugged the holes. I cleaned then up and they look like new.

No more posts for a while, as Mrs W wants to go off social distancing in the caravan !!!

Edited By Bob Wild on 08/08/2020 23:30:36