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Post by 92220 on Apr 5, 2020 17:01:28 GMT
Ok found some, hope these three are of use:- In these first two, the pipe from the vacuum reservoir to the vacuum operated switch on the side of the ATC box is still to be fitted. Although the details of a Britannia pedestal will be a little different, I imagine the general layout of the ATC box / conduit etc. is the same. In this photo, the installation is complete (although the 1 inch copper pipe from the vacuum trainpipe to the "siren" is blanked off). Cheers Don Hi Don. Superb photos. Thanks for posting them. Very handy, now I am working on my firedoors and backplate. Bob.
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Post by 92220 on Apr 4, 2020 9:23:04 GMT
NICE ONE Roger!! It's great to see someone making the effort to put small, non-working detail like this on their loco. Your loco is a real work of art!!
Bob.
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Post by 92220 on Apr 3, 2020 8:28:23 GMT
Hi Norm.
You are right about the red paint, inside the frames, being used to indicate frames cracking. There were a few Pre Grouping companies that didn't use red paint, but they did use other pale colours to show up cracks. All Britannias, and every other B.R.Standard loco had the frames painted red between the back of the saddle and the front of the firebox. This is the area on the frames that was most at risk of cracking. I have the B.R. livery drawing that specifies all painting on a Standard steam loco, in the various liveries - Express, Mixed Traffic, Goods, in Green, Black and Blue. I don't know exactly when the drawing was produced because there is no date on it, but the drawing number - D49-18727 - is a Derby drawing office number, in the early half of the time that steam existed on B.R. Towards the end of steam, the red was only painted above the horizontal stretchers. Below that was all black because any cracks would appear at the points of highest stress, from the corners of the frame cut-outs for the horn blocks upwards into the red area above the horizontal stretchers.
British Standard Signal Red (BS381 537) was specified for all B.R. locos. Evening Star was allowed to vary away from the Standard because it was a special livery for the loco. The frame plates on Evening Star were painted Red but the stretchers, both vertical and horizontal, were painted Black. This was the only loco that wasn't painted exactly to the B.R.Standard. Only at the very end of steam, when they were not too bothered about the life of the loco, they just painted everything Black.
Bob.
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Post by 92220 on Apr 1, 2020 9:24:53 GMT
+1 !!
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Post by 92220 on Mar 28, 2020 10:40:52 GMT
Hi Roger.
Thanks for the correction. I had forgotten the 3 week review. As you say though.....hard to think things will be any different in 3 weeks. Even 3 months is pushing it!!
Bob.
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Post by 92220 on Mar 27, 2020 19:48:51 GMT
All events, like exhibitions, are cancelled under current Government emergency legislation, so whether they have published a cancellation or not you can be sure it is cancelled while the current emergency legislation is in effect.
Bob.
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Post by 92220 on Mar 22, 2020 13:06:56 GMT
I have just found a B.R. drawing that shows the Britannias with the shoe mounted below the front bogie axle. I also have another B.R. drawing that shows the ATC shoe mounted below the front coupled axle, on a Class 3 2-6-2, as do the 9Fs.
Bob.
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Post by 92220 on Mar 21, 2020 9:23:55 GMT
Hi Roger.
You have some photos somewhere in your vast collection. You sent me copies when I was looking into the pedestal work, on mine. I will look them out and email them to you. Sorry I didn't think of it at the time I sent the drawing. Oopps! I also forgot to send you the Autocad drawing. I will get the dimensions onto it and email it all to you ASAP.
Bob.
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Post by 92220 on Mar 20, 2020 8:29:34 GMT
!!!?!!*!!!
Bob.
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Post by 92220 on Mar 19, 2020 19:13:10 GMT
.....Works for me in certain key areas...... Hi Alan. Thanks for that valuable bit of advice. How ever did you know I couldn't get my front door key in the lock?!?!!! Bob.
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Post by 92220 on Mar 18, 2020 10:56:25 GMT
Hi Roger.
They look good. I always make press tools if I can, to ensure that the parts come out as I want them. I also machine sheet metal parts rather than hand work anything. I just hate hand work because it doesn't get parts perfect to size and shape unless an awful lot of time is spent, where the machines do it quicker and much more accurately.
Bob.
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Post by 92220 on Mar 12, 2020 10:04:04 GMT
Hi Roger.
I've just emailed you some drawings. If you can read Autocad drawings, I can send you my scale drawing of the ATC box too, though I have to dimension it so that might be tomorrow that I can send it...if you can read it. I do have a number of photos, though I guess you do do, that I can look out and send.
Bob.
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Post by 92220 on Mar 12, 2020 9:04:35 GMT
Hi Roger.
I have a copy of ME.8086/1 General Arrangement Automatic Train Control. Although there are no dimensions, it is drawn to scale so can be scaled to get the necessary dims. I have also drawn it up fully in Autocad, but not yet dimensioned it. I will email you a copy of the drawing. I will also send you a BR drawing of the pedestal which has a back plate to carry the ATC bell unit. From that you can get the relevant dimensions as it has the mounting holes for the bell box. I will see what else I have that will be helpfull.
Bob.
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Post by 92220 on Mar 12, 2020 8:47:44 GMT
Thanks Pete. I've often wondered what the difference in finish is. I suppose the main advantage of water jet cutting, then, is that components are not subjected to intense heat so almost any material can be cut.
Bob.
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Post by 92220 on Mar 10, 2020 10:08:49 GMT
Hi Roger.
What sort of finish do you get with laser cutting. Is there any other, better finish, system? What about water cutting? That is cold and is fine grit loaded water jet.
Bob.
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Post by 92220 on Mar 9, 2020 9:10:07 GMT
Hi.
To change a line type in Autocad, click on the line you want to change, then type in Change at the command line, then type Properties. Then type LT, then type Dashed, then type a number to give the scale. For example, I use 20 for fullsize drawings and anything between 1 and 5 for 5" gauge drawings, but it depends on what size you are actually drawing at, so as far as the number to set the size of the dashes, you will have to experiment on your own drawing. Specify a number then go to the drawing and see what has come up. It may look like a solid line but if you enlarge a portion of it, you should see if it is dashed or not, or if you need to reduce or enlarge the scale of the dashes. Hope that helps. If not, let me know and I'll try to describe it a different way. Autocad is a very complex program because it is one of the top professional CAD programs; certainly it is one of the earliest to be written. I started using it in 1989 with Acad 12.
Bob.
Edit: I forgot to add...you don't need a new layer to change a line type from Continuous, to Dashed, or Center. (note the spelling of Center. It's an American program) unless you want it for, say, just dashed lines. I rarely bother with layers in Autocad, except to put all drawing lines on layer one (in Red) and layer 5 (in Black) for all dimensions. Extra layers just complicate things. Perhaps I should qualify this though. If producing a 3D assembly, layers to have each part on, are then almost an essential.
Bob.
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Post by 92220 on Mar 9, 2020 8:54:23 GMT
You have to admire the creativeness of whoever thought it up and made it!! All of them.
Bob.
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Post by 92220 on Mar 9, 2020 8:43:02 GMT
I have an old Mitutoyo digital from years ago. I have ground the legs down to less than half their width to enable measuring in tight spaces. I even ground off the inside measuring legs completely, for the same purpose. It's been knocked on the floor many times, like my others, and it still reads perfectly accurately. Admittedly it's a wooden floor not concrete, so that might have helped to save them.
Bob.
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Post by 92220 on Mar 8, 2020 18:48:18 GMT
Hi Ian.
Yes Terry is still in business but only mail order. He has stopped showing at exhibitions.
Bob.
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Post by 92220 on Mar 8, 2020 18:46:12 GMT
That is strange 4303. What is happening to your calipers? I have 2 sets of Moore & Wright digital calipers that I have had for years, and am often dropping them or knocking them on the floor. They still read within a couple of tenths when checked with various size measuring blocks, which I have to admit, surprises me, the number of times they have been knocked off the milling table!
Bob.
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