RMweb Gold Alister_G Posted April 15, 2019 Author RMweb Gold Share Posted April 15, 2019 (edited) Here you go... EDIT: Blimey, do you realise that was 4 years ago! March 2015 when that was taken. Al. Edited April 15, 2019 by Alister_G 3 6 Link to post Share on other sites More sharing options...
Gordon A Posted April 15, 2019 Share Posted April 15, 2019 I thought you were using sheep? Gordon A 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 15, 2019 Author RMweb Gold Share Posted April 15, 2019 Yep! That was for the Stationmaster's garden at Bakewell. Al. 1 Link to post Share on other sites More sharing options...
RMweb Premium Sasquatch Posted April 16, 2019 RMweb Premium Share Posted April 16, 2019 4 hours ago, Alister_G said: Here you go... EDIT: Blimey, do you realise that was 4 years ago! March 2015 when that was taken. Al. Brilliant piece of modeling. Everyone remembers it! Lucky it hasn't gone rusty, sitting out there that long! 2 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 17, 2019 Author RMweb Gold Share Posted April 17, 2019 Yesterday evening, I set too to add a DCC keepalive capacitor to my DJM J94. Using a 2200 µF capacitor, a 100 Ohm resistor and a 1N4001 diode I built my own keepalive circuit, and scarily soldered it to the Loksound chip. I managed to blow the first capacitor up, through mixing my wiring colours, but luckily it didn't take the decoder with it, which would have really pissed me off. So second time, I managed to get it all working, and tested it on the layout before finally putting the body back on the chassis. All was good, so I put the lid on... And now it doesn't work It was late by this time, so I heroically didn't throw it through a window, instead I carefully placed it back in its box, and will revisit it tonight. And if you are very, very lucky, I'll remember to take some photos as well! Al. 3 Link to post Share on other sites More sharing options...
calvin Streeting Posted April 17, 2019 Share Posted April 17, 2019 18 minutes ago, Alister_G said: instead I carefully placed it back in its box, and will revisit it tonight best idea when the gremlins find you ... stay alives are good on little lococ's want to put them in all mine.. dose the DJM J94. have a wire for stay alive or have you had to add them ? Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 17, 2019 Author RMweb Gold Share Posted April 17, 2019 23 minutes ago, calvin Streeting said: best idea when the gremlins find you ... stay alives are good on little lococ's want to put them in all mine.. dose the DJM J94. have a wire for stay alive or have you had to add them ? I've had to add them, which makes it more scary... I think I'm right in saying that with a standard DCC Decoder, it's not a problem, you just add the keepalive between the wheels and the chip, but with a sound chip it's slightly more involved. Al 1 Link to post Share on other sites More sharing options...
calvin Streeting Posted April 17, 2019 Share Posted April 17, 2019 not 100% all stay alives need to be on the DC side of the AC-DC convertor.. but also some people put them on the Sound part only.. but would not recomend connecting to rails as thats AC not DC and caps dont like AC 4 minutes ago, Alister_G said: h a standard DCC Decoder, it's not a problem, Nope some dcc chips have wires for stay alive in place already.. i think lenz do but way more expensive than the cost of 2 wires. erm complex.. to explain.. 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 17, 2019 Author RMweb Gold Share Posted April 17, 2019 1 hour ago, calvin Streeting said: but would not recomend connecting to rails as thats AC not DC and caps dont like AC Yes of course, stupid of me. Al. 1 Link to post Share on other sites More sharing options...
Titanius Anglesmith Posted April 17, 2019 Share Posted April 17, 2019 1 hour ago, calvin Streeting said: but would not recomend connecting to rails as thats AC not DC and caps dont like AC Surely that only applies to electrolytic caps though, no? Link to post Share on other sites More sharing options...
calvin Streeting Posted April 17, 2019 Share Posted April 17, 2019 erm... i thought all.. but i could and have been wrong before . so... but as in a stay alive we want to store some electricy in this case yes Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 17, 2019 Author RMweb Gold Share Posted April 17, 2019 This evening I returned to the fray. With the cab, and the top of the saddletank removed, you can see that it's quite a squeeze to fit everything in: You've got, from left to right, the capacitor, the speaker, the Loksound chip floating above, and the motor hiding under the wires, and the DCC socket in the firebox. In fact the capacitor effectively fills the front of the smokebox and half the boiler: I spent some time with the body off, testing the loco. With everything unravelled, like this, it runs fine: But when squashed together to fit inside the saddletank, it stopped working. With the aid of a multimeter, I eventually found not one but three dry joints, one here, where the wire from the DCC socket connects to the chassis pickups: and both the track connections on the back of the DCC socket: With these resoldered, normal working was restored, so I carefully stuffed everything back under the saddletank and put it all back together. The capacitor makes a big difference, not so much with the actual running of the engine, which was pretty good anyway, but it stops the sound chip cutting out and restarting when there's a slight blip in the track voltage over points etc, which was most annoying. I hope to take some video of the loco in action now, which I will edit and upload later. Thanks for looking, Al. 4 2 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 17, 2019 Author RMweb Gold Share Posted April 17, 2019 As promised, a bit of video. I apologise for the poor lighting, it's on the list. Enjoy! Al. 8 Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted April 18, 2019 RMweb Gold Share Posted April 18, 2019 Personally I think the poor lighting adds something to the ambience of the layout, that, and the plain background gives the effect of a grim November day in the Peak District. Mike. 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 18, 2019 Author RMweb Gold Share Posted April 18, 2019 Thanks Mike. So what you're saying is my kitchen has all the ambience of a grim November day... Al. 1 2 Link to post Share on other sites More sharing options...
calvin Streeting Posted April 18, 2019 Share Posted April 18, 2019 glad you found the problem.. do you find the stay alive gave smother running? i did on my 0-4-0 shunter.. allowed for a lot smother slow running. and now want them in ALL my locos 1 Link to post Share on other sites More sharing options...
Andrew P Posted April 18, 2019 Share Posted April 18, 2019 Great little Video Al and a nice sound as well, Oh and BTW, it's not only November when it's Grim up in the Dales, although I did once go there on a nice day, I think it was a Tuesday. 1 Link to post Share on other sites More sharing options...
RMweb Gold Enterprisingwestern Posted April 18, 2019 RMweb Gold Share Posted April 18, 2019 10 minutes ago, Alister_G said: Thanks Mike. So what you're saying is my kitchen has all the ambience of a grim November day... Al. You really want me to answer?!!! Mike. 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 18, 2019 Author RMweb Gold Share Posted April 18, 2019 24 minutes ago, calvin Streeting said: do you find the stay alive gave smother running? Yes, it does, really slow speed is much improved - apart from the bit over the vehicle crossing! I need to look at that, there's obviously a bit of the planking slightly too high for this loco. The other Dapol J94s don't seem to mind it, but the DJM one is considerably lighter even with all the extra gubbins in it. I'm seriously considering adding the keepalive to the Dapol ones now. Al. 1 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 18, 2019 Author RMweb Gold Share Posted April 18, 2019 27 minutes ago, Andrew P said: Great little Video Al and a nice sound as well, Oh and BTW, it's not only November when it's Grim up in the Dales, although I did once go there on a nice day, I think it was a Tuesday. Thanks Andy, really pleased with the loco now, its very nice. It's sunny in the Peak District, this morning. Al 1 Link to post Share on other sites More sharing options...
calvin Streeting Posted April 18, 2019 Share Posted April 18, 2019 6 minutes ago, Alister_G said: I'm seriously considering adding the keepalive to the Dapol ones now. yep snap.. i need to find a good source for micro size (large uf) caps.. what size did you use? mine was a 47,000uf @ 16v gave the loco a good 2 sec backup Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 18, 2019 Author RMweb Gold Share Posted April 18, 2019 (edited) 48 minutes ago, calvin Streeting said: yep snap.. i need to find a good source for micro size (large uf) caps.. what size did you use? mine was a 47,000uf @ 16v gave the loco a good 2 sec backup I did order some 4700µf electrolytics, but they were too big physically to fit in the loco, so the one I used was a 2200µf @ 25V. In the Dapol locos I may have to do some radical surgery on the internal weight to get one of those squeezed in... Al. Edited April 18, 2019 by Alister_G too many noughts! Link to post Share on other sites More sharing options...
1722 Posted April 18, 2019 Share Posted April 18, 2019 Lovely... in a grim and cheerless way, if you get what I mean. Great modelling. :-) 1 Link to post Share on other sites More sharing options...
RMweb Premium Bogie Posted April 18, 2019 RMweb Premium Share Posted April 18, 2019 Let me just clarify - you are not talking about Alister's kitchen. 3 Link to post Share on other sites More sharing options...
RMweb Gold Alister_G Posted April 18, 2019 Author RMweb Gold Share Posted April 18, 2019 Dammit Bogie, you beat me too it! Al 2 Link to post Share on other sites More sharing options...
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