Wild Rose ~ Quarry Hunslet

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dewintondave
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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Sun Nov 17, 2019 6:36 am

Thanks lads :thumbup:

I've been doing a paint test on ordinary household enamel paint. I tested this strip at 120, 150, and then 180 deg C for an hour each. The paint held up well, I mixed it from black and light grey which I have some old tins of. I'm finally going to paint the smokebox!. Look at the temper colour of the steel strip, it was shiny steel at the start. There was a light straw at 150 deg, and nothing at 120. My smokebox door drawbar has a light straw colour to it from the steam tests, but there's no colouration to the shiny smokebox front or door.
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Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Sun Nov 24, 2019 3:00 am

Well, I mixed-up my custom smokebox colour and have given it a coat. Here we are drying in the sun. I'll have to fire it to give the paint a good baking
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Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by Tom the blacksmith » Sun Nov 24, 2019 5:52 am

Very very pretty Dave. Suddenly when you get some distance you can see it as a whole rather than a collection of components. More power to your elbow :thumbup: .

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Tom

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Mon Nov 25, 2019 6:34 am

Thanks Tom!

Had an excellent run on the rolling road today - to bake the enamel Ran for over an hour

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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Mon Nov 25, 2019 6:41 am

Tom the blacksmith wrote: Tue Oct 29, 2019 7:23 am
dewintondave wrote: Tue Oct 29, 2019 7:06 am The pipes are different sizes 1/8" for steam and 5/32" for exhaust when running forwards. We'll see if it makes any difference, it was to ease the flow of exhaust.
Hi Dave,

I thought that might be the case, as well as easing exhaust out you might be keeping inlet gas speeds high for good cylinder filling. I would be intrigued to hear what you find, please keep us posted. Love the buffers too!!

Best,

Tom
Very interesting results Tom. After lots of forward running I tried reverse, it's not as good in reverse, slows up. Lots of steam oil appeared in the exhaust outlet. The smaller steam pipe must be coated in oil, and then suddenly that became the exhaust, so all the oil enroute suddenly goes to waste :thumbup:
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Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Mon Nov 25, 2019 6:58 am

I have fixed-up all the old image URL's so all the images are viewable again in the first 7 pages. I've also removed the double signatures and made those first videos viewable again :thumbup:
Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by FWLR » Mon Nov 25, 2019 8:03 am

Great job done Dave. She is running really smoothly.
Agree with you, any excuse for a run of a steamer.. :thumbright: :thumbright:

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Re: Wild Rose ~ Quarry Hunslet

Post by Tom the blacksmith » Mon Nov 25, 2019 8:47 am

dewintondave wrote: Mon Nov 25, 2019 6:58 am I have fixed-up all the old image URL's so all the images are viewable again in the first 7 pages. I've also removed the double signatures and made those first videos viewable again :thumbup:
Very interesting Dave, I suppose you won't really be able to tell until running loaded on your railway. Did you do all the calculations to arrive at pipe size and cylinder bore etc? I might have missed it but what is the cylinder bore? And thanks for fixing the old pictures, I've really enjoyed re-reading this thread whilst waiting in hospital for my back op. Keep the updates coming,

Best,

Tom

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Re: Wild Rose ~ Quarry Hunslet

Post by tom_tom_go » Mon Nov 25, 2019 9:25 am

Time to get her dirty Dave, get some coal in!

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Mon Nov 25, 2019 10:43 pm

Tom the blacksmith wrote: Mon Nov 25, 2019 8:47 am
Very interesting Dave, I suppose you won't really be able to tell until running loaded on your railway. Did you do all the calculations to arrive at pipe size and cylinder bore etc? I might have missed it but what is the cylinder bore? And thanks for fixing the old pictures, I've really enjoyed re-reading this thread whilst waiting in hospital for my back op. Keep the updates coming,

Best,

Tom
Tom, I doubled a single port area to make the steam pipe diameter. The cylinder bore has been a closely guarded secret...until now - 13/16" - 20mm

I hope you are recovering now from your operation :thumbup:
tom_tom_go wrote: Mon Nov 25, 2019 9:25 am Time to get her dirty Dave, get some coal in!
I can't bring myself to do it Tom :D
Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Tue Nov 26, 2019 12:17 am

I used CNC technology to produce the required radii for the dome, it was so enjoyable that an internal radius was generated too

Dome base
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Dome bore
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Superglued onto a mandrel. Many increments on the exterior, so quick to smooth with a file
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Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Wed Nov 27, 2019 6:48 am

It was a lovely calm day today... First run on the line!

Started with 150mL water in the boiler and 300mL in the tank, at the end of the run there was 70mL remaining in the tank. Lots of oil was splattered about, 2mL of water was extracted from the displacement lubricator at the end of the run.

I was so excited I entirely forgot about the whistle!

Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by philipy » Wed Nov 27, 2019 7:17 am

Full of both admiration and envy, Dave. Well done indeed.
Philip

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Re: Wild Rose ~ Quarry Hunslet

Post by LNR » Wed Nov 27, 2019 7:44 am

You should be wearing a big smile Dave, lovely smooth running even ( I presume) with the pump working. Top job.
Grant.

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Re: Wild Rose ~ Quarry Hunslet

Post by FWLR » Wed Nov 27, 2019 7:48 am

Superb Loco Dave. A fantastic build and a really beautiful looking Loco to boot...

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Re: Wild Rose ~ Quarry Hunslet

Post by Tom the blacksmith » Wed Nov 27, 2019 9:28 pm

What a well mannered machine Dave, I'd be well chuffed if I were you, pun intended.

Sorry I wrestled that closely guarded secret out of you, that is big cylinder bore, larger than it looks. Is there a specific reason for choosing 13/16 bore?

This has been a really inspiring build dave, and thanks for taking the time to explain all the complex bits. Looking forward to more running in footage!

Best,

Tom

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Re: Wild Rose ~ Quarry Hunslet

Post by tom_tom_go » Wed Nov 27, 2019 9:36 pm

Well done Dave, those huge oscillating cylinders moving at a steady pace don't look that bad compared to a Mamod running at a speed of light.

Coal firing video next please.

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Re: Wild Rose ~ Quarry Hunslet

Post by invicta280 » Wed Nov 27, 2019 11:30 pm

superb loco !

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Re: Wild Rose ~ Quarry Hunslet

Post by dewintondave » Thu Nov 28, 2019 12:58 am

Thanks very much lads. I am well chuffed :D
Tom the blacksmith wrote: Wed Nov 27, 2019 9:28 pm Sorry I wrestled that closely guarded secret out of you, that is big cylinder bore, larger than it looks. Is there a specific reason for choosing 13/16 bore?
Big cylinders are the secret to slow running Tom :D
tom_tom_go wrote: Wed Nov 27, 2019 9:36 pm Well done Dave, those huge oscillating cylinders moving at a steady pace don't look that bad compared to a Mamod running at a speed of light.
I agree that they don't look that bad either Tom :D
Best wishes,
Dave

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Re: Wild Rose ~ Quarry Hunslet

Post by Keith S » Mon Dec 02, 2019 3:54 am

I am very impressed with this engine. Your usual excellent fit-and-finish and smooth running are extra-evident in this machine. At first I was astonished that you chose to use oscillating cylinders, but I have to admit I love the sinuous look this engine has as it moves along. It reminds me of an oscillating ship's engine I saw running on air at the Transportation museum in Lucerne.

I am curious about why you chose to have the exhaust right at the top of the chimney rather than employing a blast-pipe to draw the fire.

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