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Post by keith1500 on Aug 1, 2021 10:30:35 GMT
This stage of the instrument build is all about seeing if the thing is going to work or not. Initial tests showed that it wasn’t going to flop back down as easily as I had hoped. The idea being the shutter drops under its own weight and the solenoid lifts it up. The iron slug in the solenoid weighs a fair bit and the bar etc that I riveted to the shutter is just too light. By adding two tool maker clamps the thing works very well, albeit a bit violent when energised! Signal instrument by GL5Keith1500, on Flickr Rather than add weight I thought I would simply add a spring. This locates around the bump stop screw and just required a simple spring pan for the other end. Signal instrument by GL5Keith1500, on Flickr Next stage is to remake the pivot for the lever and then a mounting plate for the coil. I might explore dampening the movement otherwise this thing is going to jump off the instrument shelf in the signal box or else give the signalman a heart attack!
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kipford
Statesman
Building a Don Young 5" Gauge Aspinall Class 27
Posts: 566
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Post by kipford on Aug 1, 2021 13:15:38 GMT
My 3 year old grandson is soon to visit. So Rastus needed a new face for when he meets him. Wonderful things 3D printers. IMG_2999[1] by Dave Smith, on Flickr Dave
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Post by keith1500 on Aug 1, 2021 13:29:37 GMT
Steady....you’ll start a new craze!
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Post by norfolkandgood on Aug 1, 2021 17:20:13 GMT
This stage of the instrument build is all about seeing if the thing is going to work or not. Initial tests showed that it wasn’t going to flop back down as easily as I had hoped. The idea being the shutter drops under its own weight and the solenoid lifts it up. The iron slug in the solenoid weighs a fair bit and the bar etc that I riveted to the shutter is just too light. By adding two tool maker clamps the thing works very well, albeit a bit violent when energised! Signal instrument by GL5Keith1500, on Flickr Rather than add weight I thought I would simply add a spring. This locates around the bump stop screw and just required a simple spring pan for the other end. Signal instrument by GL5Keith1500, on Flickr Next stage is to remake the pivot for the lever and then a mounting plate for the coil. I might explore dampening the movement otherwise this thing is going to jump off the instrument shelf in the signal box or else give the signalman a heart attack! Does the instrument have to 'fail safe' Keith ? Guy
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timb
Statesman
Posts: 512
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Post by timb on Aug 1, 2021 18:15:57 GMT
Attended the first public run at the club for two years today, all proceeds to charity (SCHC). Great to see so many happy passengers, and have so many 'thanks for being open' messages. Truly uplifting, a great day!
Tim
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mbrown
Elder Statesman
Posts: 1,719
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Post by mbrown on Aug 1, 2021 18:38:10 GMT
My first 2.5"Gauge Association rally for four years - Little Hay again, courtesy of the Sutton Coldfield club. A very good day indeed, with the usual excellent welcome and hospitality from the host club. I got my boiler re-tested and certificated, and the design of the boiler for 99 3462 has been approved - so no excuse not to make it now. The Burma Mines loco wasn't quite on form - the injector which wouldn't pick up on test the other week still wasn't working and the other wouldn't feed when the pressure was at blowing off point. I shall clean both of them and double-check the clacks as I suspect the shut-off cocks on the clacks may be restricting the feed. We'll see... But it ran Ok so long as I kept the pressure at about 60 psi - which wasn't easy with the big grate and free-steaming boiler, plus a fair number of signal stops with two or three other locos on the track at the same time. I had some trouble on one lap, getting away from a signal stop - until someone pointed out I had left the steam brake on.... it's only a little lever and easily missed! I took some photos but the movie I tried to take from the cab as it ran round the circuit didn't work for some reason. Anyway, here is my loco on the steaming bay.... IMG_20210801_111844 by malcolm brown, on Flickr And here is Baggo's "Helen Longish" which ran like a sewing machine... IMG_20210801_111819 by malcolm brown, on Flickr - and the club was running this beautiful 7.25"g Lynton and Barnstaple Manning Wardle. I wish I had brought my "Lyn" to complement her - we could have photographed them together on the "Very small.... Far away!" principle (for Father Ted fans). IMG_20210801_154827 by malcolm brown, on Flickr Altogether, a very good day out and well worth the 220 mile round trip. Malcolm
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Post by keith1500 on Aug 1, 2021 21:32:49 GMT
[/quote] Does the instrument have to 'fail safe' Keith ? Guy [/quote]
Hi Guy,
Ordinarily , in the world of railway signalling yes it would fail safe. That is to say it would show “train waiting”.
Over a beer last week, we the signalling committee, decided it was not necessary and simplify things a little, and just have it powered on to show “train waiting”.
Keith
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darrene
Part of the e-furniture
Posts: 440
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Post by darrene on Aug 2, 2021 10:33:10 GMT
Yesterday was a day for straightening rails. 75m of dual gauge track have been de-sleepered so far. After the straightening its re-sleepering time with PNP stuff
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dscott
Elder Statesman
Posts: 2,438
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Post by dscott on Aug 2, 2021 23:54:44 GMT
I still have a large INBOX of rusty metal from the Roofless Workshop last year which got bunged in the car with the last of 4 visits. Yes even some STAINLESS was covered in rust. The afternoon saw a return to the dump in front of the mill. This started as a couple of bits stood against the side of the bench and very Mysteriously grew like some parts of the garden into a mass of bits. I start off with clean jobs which usually involve drawings and descend into rust cleaning after about an hour.
Tomorrow we go and sit upon a BEACH with our Daughter. I am reminded of a Film Studios in the 60's who upon needing to film a beach scene, got several lorry's of building sand dumped in the car park outside. We never noticed until told many years later. And we are due far more Rain during our sit. The water is FRESH and can cause some an itching problem it warns. 3 tickets were the price of 2 wheel castings!!!! We see Katie for 4 hours! And I have to drive through Reading!!!
David and Lily.
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Post by keith1500 on Aug 3, 2021 21:01:18 GMT
The latest piece of the jigsaw was making the new pivot plate. The pivot is a 2.3mm welding rod. This sits or bears 6mm inside two brass bearings. These are turned from 4BA hex but with a 2 BA thread, plus lock nut. The idea is the lever can be set to align perfectly with the solenoid slug plus a small bit of end float. The pivot plate has slotted fixing holes which allow further adjustment (in the other direction) between the centre of the pivot and the slug. To ensure this all lines up nicely the supports are fixed to a block of steel using counter sunk 4BA screws. These pass through the 2BA holes nicely and the counter sunk centres things up. The corners are lopped off to allow silver soldering. Once done the jig is removed. Signal instrument by GL5Keith1500, on Flickr Here is the pivot plate along side the prototype. Signal instrument by GL5Keith1500, on Flickr And assembled and tested. So far so good. Next is a mounting bracket for the solenoid to take the place of the 1,2,3 block. Note the test faceplate with milled our slot and painted white. Signal instrument by GL5Keith1500, on Flickr
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Post by suctionhose on Aug 4, 2021 12:10:47 GMT
The day began just like any other day... (I got that from "The Lion King") The hot African sun... No that's not right... The cold August wind blew in at 9:00am like clockwork. (It's winter in Sydney though I am ashamed to mention it to any any Northern Hemispherer...) The day began with the usual breakfast, see the online schooling start off and a do couple of loads of laundry (if girl's are really serious about saving the planet they really must wear their clothes more than once) Then down to the workshop to make some fancy clevises for each end of a 1/4" dia rod some 18" long - fish bellied from 5mm to 6.3mm and back to 5mm again in accordance with the best Victorian Era engineering...What? 5:30 already? Cor, where does the time go...
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,269
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Post by smallbrother on Aug 4, 2021 17:46:16 GMT
I am putting our Polly 1 up for sale so I put it on the workbench for a once-over. Seized solid so off with the cylinder covers to find some strange gunge in one of them. Cleaned and then oiled and all moving well. Would have been all back together hours ago but for one very awkward screw which fastens the slide bar to the cylinder cover. It just will not locate and start in its hole so I will file a taper on it tomorrow (not forgetting to put a nut on it first) to see if that will help it locate and start into the thread. It's a long time since I did anything with this engine and it is mostly much easier that previous attempts. I think my forays into loco building have helped quite a bit with skills and tooling. Once she's back together I can get her down the club for fresh paperwork. I think I put this up before but here she is back n 2014 n the garden. www.youtube.com/watch?v=702h4iwbcgoPete.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,907
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Post by JonL on Aug 4, 2021 19:22:38 GMT
No steam mayhem for me, just laying a patio. No concrete or cement, using Jouplast pedestals with ceramic tiles. Interesting system and seems to work well (so far!). Only problem is 2/3 of my required pedestals are still in Scotland...
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smallbrother
Elder Statesman
Errors aplenty, progress slow, but progress nonetheless!
Posts: 2,269
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Post by smallbrother on Aug 4, 2021 19:43:16 GMT
No steam mayhem for me, just laying a patio. No concrete or cement, using Jouplast pedestals with ceramic tiles. Interesting system and seems to work well (so far!). Only problem is 2/3 of my required pedestals are still in Scotland... Photos please. Pete.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,907
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Post by JonL on Aug 4, 2021 20:03:22 GMT
No steam mayhem for me, just laying a patio. No concrete or cement, using Jouplast pedestals with ceramic tiles. Interesting system and seems to work well (so far!). Only problem is 2/3 of my required pedestals are still in Scotland... Photos please. Pete. Link to system I'm usingI've put scalpings down as a base as our garden was mud and clay. You place these pedestals down, the tabs on top space the tiles apart. You adjust the grey plastic collars to get them level. It's a clever system, cheaper than a traditional patio and no skills required to lay them. The tiles are spanish ceramic. This is one third of the finished size as the posts are in the post!
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Post by jon38r80 on Aug 4, 2021 22:59:50 GMT
Looking good. Hope you ran a whacker plate over the scalpings and that they are pretty thick or yiou will be adjusting the pedestals again and maybe again..... I really like those porcelain tiles, they can be made to look like expensive stone especialy the spanish and italian ones. Did a whole load of Balconies in London with them as they drain nicely and are soi much lighter than paving in stone or concrete. Not sure about polished (or are they just wet?) as they can be pretty slippery, I think the honed finish ore flame textured ones are a bit better in the wet..
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Post by suctionhose on Aug 5, 2021 0:00:38 GMT
Interesting tile system! Do you grout the joints or leave them open? What sort of point loads can they take? We've just rebuilt our front patio by the usual Australian method: 12m2 of concrete with piers to anchor it - I joke with the neighbours: "If there's ever a flash flood, lash yourself to our patio. It's not going anywhere!
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dscott
Elder Statesman
Posts: 2,438
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Post by dscott on Aug 5, 2021 2:33:57 GMT
We did the BEACH which was of the wrong sand. Sharp Sand? Which had a very hard surface to it. Also hard on the feet. It also sloped very sharply for a place designed for Children. Long way to the toilet which was over on the other side. No signs on the Beach side of the gates! Everything expensive. Daughter loved it. Me without costume went and got clothes wet.
David, and Lily still pondering why I went swimming in clothes.
Me pondering a Muslim Woman covered from head to foot in lots of cloth........ Breast feeding with the equipment for, hanging out for all to see??? White outfit Black equipment.
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JonL
Elder Statesman
WWSME (Wiltshire)
Posts: 2,907
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Post by JonL on Aug 5, 2021 10:38:25 GMT
Looking good. Hope you ran a whacker plate over the scalpings and that they are pretty thick or yiou will be adjusting the pedestals again and maybe again..... I really like those porcelain tiles, they can be made to look like expensive stone especialy the spanish and italian ones. Did a whole load of Balconies in London with them as they drain nicely and are soi much lighter than paving in stone or concrete. Not sure about polished (or are they just wet?) as they can be pretty slippery, I think the honed finish ore flame textured ones are a bit better in the wet.. I can't get any machinery into our back garden so no whacker, but the scalpings were put down a while ago and have been walked to death in many weathers. If I need to adjust I need to adjust, its not too onerous. The tile is wet in the photos; my wife rinsed my dusty footprints off them!
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Post by andyhigham on Aug 5, 2021 11:12:42 GMT
Me pondering a Muslim Woman covered from head to foot in lots of cloth........ Breast feeding with the equipment for, hanging out for all to see??? White outfit Black equipment. Photos please ;-)
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