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Post by chris vine on Feb 11, 2011 1:39:55 GMT
Hi JB,
That little side panel looks to be a b......r.
It never ceases to amaze me how complicated geometry gets once you get into 3 dimensions rather than just 2.
I bet that if you make its other half by laying it on another bit of sheet, upside down and scribe round it to make a mirror image - that it won't fit!!!
If it does (to your standard of workmanship) I will buy you an SLful of petrol, then you can come to Harrogate.....
Chris.
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Post by Deleted on Feb 11, 2011 11:11:07 GMT
Hi JB, I bet that if you make its other half by laying it on another bit of sheet, upside down and scribe round it to make a mirror image - that it won't fit!!! If it does (to your standard of workmanship) I will buy you an SLful of petrol, then you can come to Harrogate..... Chris. I lost the bet. That's the template used to make the other side, holding itself in without glue. My bottom isn't quite wide enough so you win! I didn't want to go to Harrogate anyway...... JB
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Post by rodwilson on Feb 11, 2011 11:52:43 GMT
Did I read, "It will have to do"? From the same JB I've come to know? My name may be Rod Wilson but I don't believe it.
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Post by Deleted on Feb 11, 2011 12:03:53 GMT
It won't be cheap, the boot alone will hold 225 litres . Mike, you are out by a factor of ten: I tested it this morning and it only held 22.5 litres! Rod, I might make a few small adjustments...... JB
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Post by Deleted on Feb 11, 2011 19:01:08 GMT
The front window surrounds don't appear to be half round, and are narrower than the side pieces. These surrounds were made from 1/32" brass wire, hammered out flat and annealed. The front one has just been soldered straight onto the base, without forming beforehand. The rear one has been cleaned up with needle files and 400 W&D. I'll drill the remaining holes tomorrow. Temporarily attached. Hopefully the gaps will disappear when it's rivetted up. The windows look far more realistic than I thought they would.
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redmog
Part of the e-furniture
Not Morgan weather
Posts: 461
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Post by redmog on Feb 11, 2011 20:59:08 GMT
Simply splendid, simply-loco
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waggy
Statesman
Posts: 744
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Post by waggy on Feb 17, 2011 11:24:19 GMT
JB,
Any further progress?
Waggy.
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Post by Deleted on Feb 17, 2011 13:49:08 GMT
..... and how's the 15mm pipework coming on: is it matching the form-blank drawings? Regards, G.
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Post by Deleted on Feb 17, 2011 13:59:35 GMT
All necessary pipework, elbows and valves purchased. The surfaces have been renovated. New autoflush unit and driver's washing facility is being delivered tomorrow..... JB
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Post by Deleted on Feb 17, 2011 14:14:36 GMT
Blimey, It's not just Britannias you build in double-quick time then!
Respectfully your's,
Gareth.
Note to self - must ensure this thread is not seen by my domestic Site Manager.
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steam4ian
Elder Statesman
One good turn deserves another
Posts: 2,069
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Post by steam4ian on Feb 17, 2011 20:43:34 GMT
G'day JB
Such excellent work.
However you have me worried. The boiler is not yet complete including the firebox stays. The wrapper is such a good fit. Are you concerned that the stay ends and any distortion caused by the heating will upset the fit?
Is there insulation under the wrapper?
Regards Ian
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Post by Deleted on Feb 17, 2011 21:06:52 GMT
G'day JB However you have me worried. The boiler is not yet complete including the firebox stays. The wrapper is such a good fit. Are you concerned that the stay ends and any distortion caused by the heating will upset the fit? Is there insulation under the wrapper? Regards Ian Hi Ian, thanks for the kind words. To answer your questions you might not be aware that it is a commercial TIG welded boiler, it is complete, and the firebox stays -5mm rods leaving 10mm dia. weld pools - have been ground off nearly flush and the wrapper fitted over them. There is room for 1.5mm of insulation. It's been passed by the local Boiler Inspector too! Anyway, it won't get very warm where it's going....... JB
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Post by Deleted on Feb 28, 2011 18:14:11 GMT
Oh well, back to the Brit! Roof GuttersThere are some gutters on the roof, and it would be sacrilegious to leave them off, but they are very tiny! Here they are, stuck on to get an idea of position and scale, and will be fixed with Araldite once the cab has all been rivetted up. I tried brass, but it is just too fragile - the scrap piece is in the picture- , so I went back to my old friend, stainless steel. These are made out of 28g, and as I'm treading new ground at this size, (again!) , here are a few sequence pics. A strip 3mm wide to fit the cab side was guillotined off, placed half way down in the makeshift fixture made from two HSS toolbits. There is a similar strip in the base to keep things parallel. Do the clamps up tight: I didn't and the strip goes walkabout! Tapped over using a 50mm wide piece of alloy. The fixture was placed in the vice and the two edges of the bent piece cleaned up using a small hand safe edge file. Another pic! I've forgotten what I've got to do next....... JB
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Post by Deleted on Feb 28, 2011 18:20:13 GMT
Great work JB and good to see the Brit thread back... Pete
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Post by keith1500 on Feb 28, 2011 21:30:50 GMT
Brilliant idea. I, for one certainly appreciate seeing the progress and the methodology such as the use of a pair of HSS tool bits for bending among others.
please be encourage as should others.
Keith
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Post by spamcanman on Mar 1, 2011 0:23:43 GMT
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Post by Deleted on Mar 6, 2011 13:25:55 GMT
Handrail Supports
The 3.5" scale handrail supports are a bit large (long) for the vertical handrails rails at the rear of the cab. Would 2.5" ones do the trick or have I got to make my own? JB
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Post by Deleted on Mar 6, 2011 17:06:50 GMT
Hi JB
I found that the 5" hand rail supports were to big so used 3 1/2 on my FS which were a perfect fit to my drawings so it makes sense that the 3 1/2 are to big for their supposed scale. However before buying I emailed the suppliers for the critical dimensions first just to play safe.
Pete
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Post by welshy on Mar 6, 2011 17:57:12 GMT
JB you can modify the commercial supports quite easily as they are just plated brass, the ones I bought for the boiler hand rail of the Stirling were too short and should have had straight stems not tapered so I very carefully machined the stem down up to the ball end and used stainless tube of the right diameter to fit over and also re-tapped the end to the next BA thread down. This was a lot easier and quicker than making my own from scratch. I did make the cab vertical supports from scratch only because they had to have a blind hole through the ball end. For these i used 1/4" stainless balls which I drilled and tapped to screw in a stud for attaching into the cab side and drilled another hole at right angles for the rail. I will get some photos on here very soon as my house move is now over and I am slowly getting things sorted, the loco is almost re-assembled in it's new home. Mike
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Post by Deleted on Mar 6, 2011 21:28:40 GMT
Thanks Pete and Mike, I will have a go tomorrow! JB
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