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Post by coniston on Jul 18, 2019 12:35:10 GMT
Chris The Aspinall has hydrostatic lubrication. DY shows where it goes, but convieniently then says look at some ME articles from Donkey's ago for the details. Would you be so kind as to let me have details of yours? Regards Dave pm sent Chris
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,909
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Post by JonL on Jul 18, 2019 13:03:20 GMT
Took a safety valve off the Wren to try and modify to have a much better lift than the current valve, then refitted the roof on the club shed after another break in. No locos taken or damaged, just other items taken. Simon. Our club has CCTV, was quite reasonable and is mounted in such a way as to be a good deterrent as well as valuable if it has to be used as evidence. Worth considering if you haven't got it already.
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Post by delaplume on Jul 18, 2019 15:26:43 GMT
Not model engineering, but I rode the Swanage railway to Corfe Castle for a walk around today, very nice. Rode a mixture of old diesel and steam. Lovely. Yes it is !!--------------- 12 ins. to 1 ft scale, LoL !! Alan
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Post by jon38r80 on Jul 19, 2019 13:40:16 GMT
I spent the afternoon putting a rolled edge on a disc of 0.5mm galvtite sheet to stiffen the edge and get rid of the razor sharpness. I have now to make it into a cone for a roof to a bird feeder. all done by hand with a bending stick, hammer and anvil. Not a job to do in a hurry. I finished the bird feeder a few days ago with a nice coat of etch primer followed by some 'blackboard paint' that I got cheaply from Aldi - quite pleased with the result. the Blue and Great tits seem to agree
Cant seem to get the photo to show sequence quite right but the link seems to work.
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Jul 19, 2019 18:17:14 GMT
Nearly finished the tramming head today, just the post that goes into the chuck to turn up then a bit of fettling and we see if it works !!!
Tim
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Post by coniston on Jul 19, 2019 19:56:46 GMT
Finished piping the hydrostatic lubricator yesterday and today, bit difficult getting the pipe across the frames under the boiler that sits below the frame top then bent round into steam pipe but did it in the end. Chris D
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Post by ilvaporista on Jul 21, 2019 3:51:46 GMT
More a what have I been up to. Over the past two months I have been making some odd bits and pieces for some friends. Turning a few stainless pins. Milling a few bits of plastic. Drilling and tapping etc. The end product was a 1/6th scale model of the Apollo capsule which was duly launched on the same date as the Apollo 11 mission took off. youtu.be/K-5uKNBYoFMWe had a fun day launching then lunching as we waited for news of the splashdown. The capsule arrived at over 100'000 feet. Just over 35'000m and travelled from Asti to the sea, splashing down just off Chiaveri over 60 miles from the launch site. The capsule, signed by Italian astronaut Paolo Nespoli, was recovered and the onboard video is being edited so should be available soon.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,909
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Post by JonL on Jul 21, 2019 8:50:10 GMT
Our MES members are very generous with their locomotives; one chap loaned my son and I his Sweet Pea for the afternoon: both he and I did countless laps of the track learning about firing on the move, using the blower, and other techniques. The only thing we couldn't really do was notch back as when we tried that I noticed that the lubricator was no longer getting enough movement on the actuating arm to work the ratchet.
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Post by Roger on Jul 21, 2019 9:44:41 GMT
Our MES members are very generous with their locomotives; one chap loaned my son and I his Sweet Pea for the afternoon: both he and I did countless laps of the track learning about firing on the move, using the blower, and other techniques. The only thing we couldn't really do was notch back as when we tried that I noticed that the lubricator was no longer getting enough movement on the actuating arm to work the ratchet. Our club is the same, everyone gets a go with all of the locomotives on our private steam ups. I'd be interested to know if any of these narrow gauge locomotives can be notched up, I'm yet to drive one that does. One only ever driven one locomotive that would, regardless of type. Most go very lumpy and uneven if you go more than one notch. I get the impression that most owners are happy as long as the wheels go round.
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Post by David on Jul 21, 2019 10:57:47 GMT
Our club's Sweet Pea doesn't. I tried and it started bunny hopping. I asked why and apparently Hackworth gear doesn't notch up all that well.
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Post by Roger on Jul 21, 2019 11:37:53 GMT
Our club's Sweet Pea doesn't. I tried and it started bunny hopping. I asked why and apparently Hackworth gear doesn't notch up all that well. I suspect that even valve gears that ought to notch up often don't due to not being made well enough or set up accurately, as well as wear causing issues. I've seen a locomotive still running although there had to be 1mm slop in the connecting rods and the valve gear wasn't much better. I suppose this is the beauty of Steam Engines, they keep going even when they're hopelessly wrong.
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Post by simplyloco on Jul 21, 2019 16:08:44 GMT
We had a most entertaining breakfast along with a couple of dozen impoverished homeless alcoholics in Plymouth this morning. I was amazed at the value offered and achieved at Wetherspoons!
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Jul 21, 2019 17:12:42 GMT
Finished the milling machine tramming bar today.
This is the back view:
The inner set of holes allows the dial gauges to move inwards to 7" apart allowing the bar to be used on the drilling machine and across the table on the mill.
Now of course I will have no excuses when milling
Tim
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Post by delaplume on Jul 21, 2019 19:21:05 GMT
Hi Tim,
nicely turned-out if I may say so ??
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timo
E-xcellent poster
Completing 3 1/2 Rainhill .Building 5" Railmotor and waiting to start 3 1/2" King
Posts: 234
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Post by timo on Jul 21, 2019 19:32:27 GMT
Hi Tim, nicely turned-out if I may say so ?? Thank you, I really pleased with the result. Trouble is I have now set the standard for everything else
Tim
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Post by delaplume on Jul 21, 2019 19:49:42 GMT
Hi Nobby,
Quote}---"The only thing we couldn't really do was notch back as when we tried that I noticed that the lubricator was no longer getting enough movement on the actuating arm to work the ratchet."
If the lubricator drive is attached to the valve rod ( or direct appendages ) then that's exactly what will happen......As you link-up so the valve travel is reduced in order to reduce the amount of live steam passed into the cylinders....thus making more use of that steams' expansive quality....and also less oil is delivered too..
BUT, that's at odds with lubrication requirements of the pistons and rings which are within the cylinders etc.....These have a straight forwards "linear" demand ie}--- the faster they move the more oil is required..
So, make sure the oil pump drive is attached to something that is directly driven eg}--- the by-pass pump eccentric....or the cross-head via a reducing ratio linkage...
Alan
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mbrown
Elder Statesman
Posts: 1,720
Member is Online
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Post by mbrown on Jul 21, 2019 19:51:18 GMT
Our club's Sweet Pea doesn't. I tried and it started bunny hopping. I asked why and apparently Hackworth gear doesn't notch up all that well. Hackworth gear, properly set up, notches up fine, although often much better in one direction than the other. The Talyllyn Railway's Edward Thomas notches up to mid gear when going forward, although the beats become ragged when notched up in reverse. There was an article in EiM some years ago by John Bate, ex-Chief Engineer of the TR, about how to arrange Hackworth gear for the best events (and quite critical of the Sweet Pea design which misses some crucial points. Worth reading fi you are planning on building a Sweet Pea. Malcolm
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Post by coniston on Jul 21, 2019 20:39:31 GMT
Firstly catch up from yesterday, got the cab and running boards back together with the hydrostatic oil system fitted. I have made a backing of thin aluminium (Litho plate) painted white so hopefully see the oil globules easier. I have filled the glasses with vegetable glycerine, I have lots as I use it when making e-cig (vaping) liquid, so thought I'd give it a try just neat, although it is rather viscous so maybe I should dilute it 50/50 with water? That's really a question for some experienced members please. I managed to hide the pipe run below the running board on the right hand side with only a short section exiting the cab. Just need to steam it to check everything works ok, hope to do that early in the week as it needs to be ready for next week ends 'Steam Railway Weekend' at Fareham club. I've been rostered for both Saturday and Sunday afternoon shifts. Chris D
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Post by coniston on Jul 21, 2019 20:45:09 GMT
So this morning we started preparations for our 'Steam Railway Weekend' at Fareham, managed to erect all four main marquees in just over 3 hours, plenty of help from a good proportion of our members luckily. Any one interested please come along, it is our only public open days to earn funds to continue developing and maintaining our site and facilities. Unfortunately a planning stipulation when we bought the land was a limit of maximum of 4 days open to the public, although we generally only use 2 days of our 'allocation'. I guess due to our location it wouldn't be ideal for regular public running anyway so we put all our effort into just this one week end. Details below if anyone is interested. Chris D
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Post by simplyloco on Jul 21, 2019 21:03:29 GMT
I've been rostered for both Saturday and Sunday afternoon shifts. Chris D Gosh Chris, I read that initially as 'restored'! John
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