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Post by David on Jun 18, 2019 3:12:23 GMT
Looks excellent, you should be really pleased with that!
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Post by Deleted on Jun 18, 2019 9:59:07 GMT
I agree with the above, great work Nobby...
Pete
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JonL
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Post by JonL on Jun 18, 2019 13:38:16 GMT
Thank you gents.
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JonL
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Post by JonL on Jun 21, 2019 17:21:45 GMT
I soldered up the left hand motion bracket from the kit I bought from Malcolm at Model Engineers Laser. No pictures yet, because I'm not proud of it yet.... the geometry seems all very good but some of my soldering doesn't look as nice as I want it to. I'm going to clean it up once I've put a fresh fuse in my wire wheel so I can look at refilleting the bits I'm not quite there with.
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uuu
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Post by uuu on Jun 21, 2019 17:54:29 GMT
If the geometry's good and it's strong, then a wipe of filler will generate the fillet, without the risk that it moves when reheated.
Wilf
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JonL
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Post by JonL on Jun 21, 2019 18:10:58 GMT
Good point Wilf, thank you. I assume you mean car body filler or am I being thick?
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uuu
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Post by uuu on Jun 21, 2019 18:16:21 GMT
Yes - some kind of two-part filler - plastic padding, chemical metal, whatever. Assuming the part is to be painted, so you're not trying to generate a colour match!
Wilf
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JonL
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Post by JonL on Jun 22, 2019 10:27:22 GMT
Yes - some kind of two-part filler - plastic padding, chemical metal, whatever. Assuming the part is to be painted, so you're not trying to generate a colour match! Wilf Yes it's going to be black as it's a bracket for the motion work rather than part of the motion itself |
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uuu
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Post by uuu on Jun 23, 2019 13:43:04 GMT
On the NSW mogul thread, there's a discussion on adding soft solder fillets, using an old-fashioned soldering iron. This might be applicable to your situation.
Wilf
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Post by Roger on Jun 23, 2019 16:09:12 GMT
I soldered up the left hand motion bracket from the kit I bought from Malcolm at Model Engineers Laser. No pictures yet, because I'm not proud of it yet.... the geometry seems all very good but some of my soldering doesn't look as nice as I want it to. I'm going to clean it up once I've put a fresh fuse in my wire wheel so I can look at refilleting the bits I'm not quite there with. I presume it's Steel parts that ended up really black with oxide? One way too avoid that is to plaster everything with flux so that doesn't happen. If you form small pieces of silver solder that are then laid where you want it, you can heat it all up and it will melt the silver solder at a much lower temperature because the pool of clear flux will transfer the heat to everything and it will flow much sooner. The shorter the length of time it's not, and the lower the temperature, the less chance there is of forming black oxide and it will be neater and quicker to clean up. |
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JonL
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Post by JonL on Jun 23, 2019 19:21:11 GMT
Ah, good call, thank you. It's mainly that the solder got places I didn't want it to go, I used too much and didn't mask it with tippex.
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Post by simplyloco on Jun 25, 2019 17:30:45 GMT
May I suggest that you grit blast it? You will know what you are dealing with when the surplus solder has been removed.
John
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JonL
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Post by JonL on Jun 25, 2019 17:37:16 GMT
May I suggest that you grit blast it? You will know what you are dealing with when the surplus solder has been removed. John Good idea, I'll ask around at work and see if I can use the one at the workshops. I removed quite a bit of the solder that was in the wrong place cosmetically with a file. Grit blasting would finish the job nicely. |
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Post by steamer5 on Jun 26, 2019 7:07:50 GMT
Hi Nobby,
Once tidied up & made pristine, it will look real good....... until you start steaming it! Then it will get covered in s..t & look bloody horrible! Ah well that part of the fun...... cleaning locos! Keep up the good work!
Cheers Kerrin
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JonL
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Post by JonL on Jun 26, 2019 11:10:58 GMT
Thank you, I get a tiny bit better every time, just a shame I'm not improving quicker. Onward and upward!
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Post by Deleted on Jun 26, 2019 11:22:24 GMT
Hi Nobby
It may interest you to know that I had to spray a textured primer on my expansion bracket to make it look like the cast bracket of the prototype rather than the smooth steel that the model parts were made from... looking good sir.
Pete
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JonL
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Post by JonL on Jun 26, 2019 15:15:05 GMT
Hi Nobby It may interest you to know that I had to spray a textured primer on my expansion bracket to make it look like the cast bracket of the prototype rather than the smooth steel that the model parts were made from... looking good sir. Pete Well of course that was my intention all along....  |
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JonL
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Post by JonL on Jul 8, 2019 18:18:51 GMT
I've been wondering how to open up the hole in the top of the smokebox for the petticoat pipe and chimney. Then I remembered someone gave me an air powered die grinder a few years back (he left the garage trade to become an AA Man!). It did the job very neatly, with lots of stopping to remeasure, and compare the hole to the blast pipe.   I do wonder if the blast pipe is a little high? LBSC doesn't show it in his drawings, and I only have photos of the smokeboxes of other LBSC Britannias to refer to, which isn't ideal. Maybe it just looks high as the smokebox door ring isn't in place in the photo. |
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