Popular Post KNP Posted May 21, 2020 Author Popular Post Share Posted May 21, 2020 Bit of action this morning. In fact, for this layout, very busy for this time of the morning! 27 Link to post Share on other sites More sharing options...
jcm@gwr Posted May 21, 2020 Share Posted May 21, 2020 20 minutes ago, KNP said: Thanks chaps for the advice on Liquid Lead. What is the time span for this expansion? I was planning to use UHU with a coat of PVA over the top to seal. Might revert back to the normal lead flashing as I have metres of the stuff left over from some building work. It looked such a good idea (at the time!) as there is limited space under the wagon. I would suggest the expansion rate or time-frame is irrelevant, you don't want it to happen at all, ever! So gluing with UHU would be fine, although I find super-glue (£ shops) works well, then, if you still feel the need to 'seal' it, use enamel (not acrylic) paint. Lead flashing, cut and shaped to fit, will be heavier, mainly because there will be no air gaps that you get with shot, so should be better. Also easier to glue with CA. 3 5 Link to post Share on other sites More sharing options...
RMweb Gold Worsdell forever Posted May 21, 2020 RMweb Gold Share Posted May 21, 2020 1 hour ago, KNP said: Thanks chaps for the advice on Liquid Lead. What is the time span for this expansion? I was planning to use UHU with a coat of PVA over the top to seal. Might revert back to the normal lead flashing as I have metres of the stuff left over from some building work. It looked such a good idea (at the time!) as there is limited space under the wagon. Try a magnet near it, the stuff I have is steel/iron so no problem with PVA, it even has 'Non Toxic' on the bottle. 4 Link to post Share on other sites More sharing options...
Simond Posted May 21, 2020 Share Posted May 21, 2020 (edited) I'd be a bit hacked off to pay for liquid lead and get something ferrous! Lead is relatively pricy stuff, (~£3.50/kg) iron shot is cheap enough (< £1/kg) to throw away after shotblasting! And the lead is 11.3 g/cm3 compared with about 8 for ferrous materials. Both less in shot form as JCM noted above, due to the gaps; For equal spheres in three dimensions, the densest packing uses approximately 74% of the volume. A random packing of equal spheres generally has a density around 64%. (Wikipedia) so lead shot will give you about the same weight as a piece of steel milled to fit the same volume exactly. atb Simon Edited May 21, 2020 by Simond 1 6 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 21, 2020 Author Popular Post Share Posted May 21, 2020 While having a tidy out of the photo folder came across these two, slightly out of subject focus, pictures. Rather than bin them here they are... If you peer intently at the picture and then screw your eyes up without closing them the focusing gets better...... 21 1 Link to post Share on other sites More sharing options...
RMweb Gold Tony Teague Posted May 21, 2020 RMweb Gold Share Posted May 21, 2020 (edited) 6 hours ago, KNP said: Thanks chaps for the advice on Liquid Lead. What is the time span for this expansion? I was planning to use UHU with a coat of PVA over the top to seal. Might revert back to the normal lead flashing as I have metres of the stuff left over from some building work. It looked such a good idea (at the time!) as there is limited space under the wagon. Hi Kevin It took about 15 years from the date of construction for it to become obvious that something was badly wrong with this DMR kit-built SR Z class; neither I nor the builder was aware back in 2002 that PVA & lead shot were a problem - but we certainly are now! y I got the smoke box door off and managed to rake out most of the shot, then soaked the whole body in water for 24 hours to loosed what was left. Luckily for me, my builder was happy to re-fix the boiler and the loco is now back in the operating fleet loaded with fresh lead shot, sealed in with araldite. For info, I have also used superglue within kit-built plastic-bodeied wagons to hold lead shot in place; so far it seems ok! Tony Edited May 21, 2020 by Tony Teague 2 5 4 Link to post Share on other sites More sharing options...
RMweb Gold Mick Bonwick Posted May 21, 2020 RMweb Gold Share Posted May 21, 2020 (edited) I quite like your out-of-focus shots, actually. The hegderow is in focus and, if I look at that, then the rest of the scene is as out of focus as my eyesight would see it in real life. Edited May 21, 2020 by Mick Bonwick 1 3 Link to post Share on other sites More sharing options...
Tallpaul69 Posted May 21, 2020 Share Posted May 21, 2020 The only problem I have with your out of focus shots is the large running in board that (to me at any rate!) leaps out of the page! As has been remarked before, we don't all notice the same things and a good job to! Perhaps a retake from a slightly different angle is in order? Sorry, must be in a picky mood today, better not put up any of my photo efforts!! Cheers Paul 1 Link to post Share on other sites More sharing options...
KNP Posted May 21, 2020 Author Share Posted May 21, 2020 (edited) 1 hour ago, Tony Teague said: Hi Kevin It took about 15 years from the date of construction for it to become obvious that something was badly wrong with this DMR kit-built SR Z class; neither I nor the builder was aware back in 2002 that PVA & lead shot were a problem - but we certainly are now! y I got the smoke box door off and managed to rake out most of the shot, then soaked the whole body in water for 24 hours to loosed what was left. Luckily for me, my builder was happy to re-fix the boiler and the loco is now back in the operating fleet loaded with fresh lead shot, sealed in with araldite. For info, I have also used superglue within kit-built plastic-bodeied wagons to hold lead shot in place; so far it seems ok! Tony Wow, my saving grace would be it's open on the bottom so taking the passage of least resistance it would move downwards - hopefully If I use this stuff then UHU, superglue or a 6" nail bent to hold it all in will be used.....! EDIT I am joking about the nail...... Edited May 21, 2020 by KNP 3 2 Link to post Share on other sites More sharing options...
Simond Posted May 21, 2020 Share Posted May 21, 2020 Time span: years. I guess it depends how tightly the space is filled, and humidity, temperature, etc. There’s lots of info about it, I guess on here, and the www. I believe it’s a lead-acetate reaction, but can’t recall the details. uhu should be fine. 1 2 Link to post Share on other sites More sharing options...
RMweb Gold The Johnster Posted May 21, 2020 RMweb Gold Share Posted May 21, 2020 The attraction of the Liquid Lead/PVA combination is that it is very easy to handle and does not give off nasty odours (some of us model in a domestic environment where glue smells are not tolerated but nail polish is...). Even very dilute PVA is effective in this application, and so long as it can ‘breathe’ and the ballast has somewhere to go if it wants to expand, should not cause a problem. I’d check on it now and then, though! 1 Link to post Share on other sites More sharing options...
RMweb Gold Tony Teague Posted May 22, 2020 RMweb Gold Share Posted May 22, 2020 12 hours ago, The Johnster said: The attraction of the Liquid Lead/PVA combination is that it is very easy to handle and does not give off nasty odours (some of us model in a domestic environment where glue smells are not tolerated but nail polish is...). Even very dilute PVA is effective in this application, and so long as it can ‘breathe’ and the ballast has somewhere to go if it wants to expand, should not cause a problem. I’d check on it now and then, though! So are you saying that you have tried it with nail polish? Might one ask what colour? 1 10 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 22, 2020 Author Popular Post Share Posted May 22, 2020 30 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 22, 2020 Author Popular Post Share Posted May 22, 2020 Hopefully the pigs are inside...…..! 29 Link to post Share on other sites More sharing options...
RMweb Gold Shedman5 Posted May 22, 2020 RMweb Gold Share Posted May 22, 2020 Lovely pictures Kevin as always! 3 1 Link to post Share on other sites More sharing options...
autocoach Posted May 22, 2020 Share Posted May 22, 2020 7 hours ago, KNP said: Hopefully the pigs are inside...…..! Home to the three little pigs? 1 1 Link to post Share on other sites More sharing options...
MrWolf Posted May 22, 2020 Share Posted May 22, 2020 1 hour ago, autocoach said: Home to the three little pigs? Damned if I'm going to try and blow that house in. Been there. Done that. Didn't end well. 1 11 1 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 23, 2020 Author Popular Post Share Posted May 23, 2020 Another picture of the branch junction but from a different angle. 24 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 23, 2020 Author Popular Post Share Posted May 23, 2020 Had everything set up so moved the camera/tripod around for yet another angle but got too much of the profile board and pullout work bench in sight Plus a label had fallen of the lights and ended up in the trees, no idea how long that had been there.... So I got my scissors out and did a bit of cropping Hmm, too much looks cropped but the next one Last one I was pleased with as the lighting gave the trees a nice clumpy and uneven shading appearance. 28 Link to post Share on other sites More sharing options...
RMweb Gold Mick Bonwick Posted May 23, 2020 RMweb Gold Share Posted May 23, 2020 You must either be a contortionist or have a very clever tripod. I can't imagine how you would get into that position to take that shot. Or did you employ a certain aviator? 1 1 Link to post Share on other sites More sharing options...
gismorail Posted May 23, 2020 Share Posted May 23, 2020 21 hours ago, KNP said: Hopefully the pigs are inside...…..! Sorry Kevin but I'm sure it's farmers market day Andy P would say 'Sausages' 1 4 Link to post Share on other sites More sharing options...
KNP Posted May 23, 2020 Author Share Posted May 23, 2020 (edited) 1 hour ago, Mick Bonwick said: You must either be a contortionist or have a very clever tripod. I can't imagine how you would get into that position to take that shot. Or did you employ a certain aviator? I have an extension piece to my boom..... I do have to wait a bit for it to steady as it does bounce with the camera on the end!!! ohh err missus Edited May 23, 2020 by KNP 1 5 Link to post Share on other sites More sharing options...
Popular Post KNP Posted May 23, 2020 Author Popular Post Share Posted May 23, 2020 In order to get you the pictures I am pushing the envelope! The tripod is just beyond stable so is leaning slightly on the back scene. This is where remote control from the iPhone is at its most useful The things I do for you lot?!?!? 18 1 3 4 Link to post Share on other sites More sharing options...
Malcolm 0-6-0 Posted May 23, 2020 Share Posted May 23, 2020 17 minutes ago, KNP said: In order to get you the pictures I am pushing the envelope! The tripod is just beyond stable so is leaning slightly on the back scene. This is where remote control from the iPhone is at its most useful The things I do for you lot?!?!? War of the Worlds comes to little Muddle ....... 1 6 Link to post Share on other sites More sharing options...
RMweb Gold pirouets Posted May 23, 2020 RMweb Gold Share Posted May 23, 2020 17 minutes ago, KNP said: In order to get you the pictures I am pushing the envelope! Oh the white knuckle ride of railway modelling Keep them coming though as its fascinating to see all the angles and makes me think more about scenes and cameo's I may have in the future. 3 2 Link to post Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now