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Thread: GNR Stirling Locomotive
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7th February 2017, 04:04 PM #151
Nice!!!
Put some tracks under it and it would look like it's waiting at the station.
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7th February 2017, 04:43 PM #152
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7th February 2017, 06:49 PM #153GOLD MEMBER
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Hi All,
Fletty asked if I could redo the second photo and repost it in black and white.
Here it is.
Regards
Keith
46a.jpg
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7th February 2017, 08:09 PM #154
Keith, like the image of the engine poking out of the shed. Just need some rails and a bit of steam/smoke for more realism.
Some of the Stirling engines, during their life had 'dome-less' boilers. What you have made is a shroud for the boiler safety valves. The safety valves are an essential fitting to the boiler so its pressure does not exceed the designed or permitted working pressure. If the boiler was allowed to go beyond the permitted working pressure there is the risk of the boiler exploding. The damage that this can cause is horrendous, the crew normally do not need to answer any questions afterwards as they probably perished. The reason for the shroud would be to direct the vented steam away from the crew, and also to reduce the risk of the crew tampering with the setting of them.
I like the whistle.
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7th February 2017, 09:12 PM #155GOLD MEMBER
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8th February 2017, 08:18 AM #156
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8th February 2017, 04:02 PM #157GOLD MEMBER
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8th February 2017, 06:16 PM #158
isambard kingdom brunel would be proud of you mate
Steve
Kilmore (Melbourne-ish)
Australia
....catchy phrase here
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8th February 2017, 10:18 PM #159GOLD MEMBER
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12th February 2017, 03:41 PM #160GOLD MEMBER
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Hi all,
I have been working on the smokebox door hinge. It is hard to believe it has taken nearly 4 days to do this small piece of work. It is all still removable because I want to paint the hinges chrome as per the original prototype.
The shaft is 4mm mild steel and the hinges are 6.5mm aluminium drilled to a sliding fit over the shaft. I then made up pins out of 1.5mm wire and drilled into the hinge and shaft.
Then I cut some 1mm thick aluminium sheet and filed and sanded. I attached this to the round section of the hinge and drilled also so that the pin locates it all in position. I then used 5 minute araldite to secure it all together. Trevor once told me that bodyfiller is your best friend. I used bodyfiller to smooth up the joins between the round and flat section of the hinge.
Then drilled for the pins and placed the hinges in position. The rivets on the flat section of the hinges are 1.5 bullet head nails with the heads ground flat. The holes into the smokebox cover are a tight sliding fit that allows me to secure whilst still getting the contour of the cover.
Now onto the front buffer assembly. Need to do this to get my correct width of the loco before starting to work on the side covers and guarding.
Regards
Keith
47.jpg
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12th February 2017, 03:44 PM #161
Just spectacular. This attention to detail is an honest joy. Thanks man.
Steve
Kilmore (Melbourne-ish)
Australia
....catchy phrase here
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16th February 2017, 01:52 PM #162GOLD MEMBER
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Hi All,
Trying to get the scale correct off photos is the more difficult part of building this loco.
I have had a number of goes getting the front buffer plate looking correct but it's been a bit out of scale I think so this is what I have finally come up with.
The buffers and their housings were turned up separately on the woodlathe. I used some scrap 45mm thick pine board I had and cut it as a square section - centre drilled it and then turned it to 43mm OD in the woodlathe. Then did the rest of the form turning using various hand chisels. I only stuffed up one that disintegrated when the chisel dug in.
The rivets on the front deck are spiral nail heads.
Still got a fair bit of detail to go on this front section - but I am pretty happy how it's all looking so far.
Regards
Keith
48.jpg
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16th February 2017, 07:08 PM #163
Once more this is a riveting thread. I am waiting to see vapor/heat haze coming out of the funnel and condensate/steam from the cylinder drains. I feel that if the wheel treads were silver, it would look like an active engine.
Awaiting the next post.
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16th February 2017, 08:33 PM #164GOLD MEMBER
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16th February 2017, 09:34 PM #165
Looking great Keith
I know that feeling Keith when I use to build scale model boats many times when something was made it looked wrong even though it was to exact scale, ended up making the part so it looked correct. So we used to have a saying "if it looks right it is right".
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