banburysaint Posted October 21, 2018 Share Posted October 21, 2018 Is there an equivalent geometry code 100 Electrofrog diamond crossing from another manufacturer? I find that there is a momentary short when a locomotives cross it under dcc. All the surrounding fishplates are insulated Link to post Share on other sites More sharing options...
Free At Last Posted October 21, 2018 Share Posted October 21, 2018 They are easy to convert I have done some code 100 single and double slips Link to post Share on other sites More sharing options...
banburysaint Posted October 21, 2018 Author Share Posted October 21, 2018 (edited) Where did you get the crossing noses from? Edited October 21, 2018 by banburysaint Link to post Share on other sites More sharing options...
Free At Last Posted October 21, 2018 Share Posted October 21, 2018 banburysaint, on 21 Oct 2018 - 15:58, said:Where did you get the crossing noses from? They are made from scrap pieces of flat bottom rail filed to suit. 1 Link to post Share on other sites More sharing options...
Silver Sidelines Posted October 21, 2018 Share Posted October 21, 2018 This seems to be a perennial problem - both in analogue and digital.http://www.rmweb.co.uk/community/index.php?/blog/880/entry-7487-diamond-crossing-or-single-slip/I changed the diamond for a single slip - without needing to modify any of the plastic Vs (which I have to admit to look very good).Ray Link to post Share on other sites More sharing options...
RMweb Premium Ray H Posted October 22, 2018 RMweb Premium Share Posted October 22, 2018 We replaced our Club's one with a code 75 crossing which did away with all the problems Link to post Share on other sites More sharing options...
DCB Posted October 22, 2018 Share Posted October 22, 2018 (edited) Its a design fault as the wheel treads can bridge the two converging but insulated rails at the frog. Converting to electrofrog by bonding the two frog rails and swiching frog polarity should cure it but it can be loco wheels or stock wheels so it may not work with a frog juicer. A nice arrow head metal point frog is a nice touch but not necessary to solve the short. The Peco has a lump of plastic causing a dead area at mid point, some locos stall on it, 2-8-0s without sprung middle wheels and the Wrenn 8f in particular so I cut it away and slide the rails in so they touch and solder them Then I wire the two frogs and the two outer rails to a 4 pole change over relay. You also need to break some of the links to the inner rails and feed only them from the adjacent frog. With DCC you can connect the two outer rails to the bus and just use a two pole relay of switch , but mine are fed from a micro switch on the adjacent point, which has authority over whether the diamond is set straight through or across. Mine has worked with no attention for 30 odd years... However another manufacturers RTR live frog diamond might be less aggro Edited October 22, 2018 by DavidCBroad Link to post Share on other sites More sharing options...
banburysaint Posted October 31, 2018 Author Share Posted October 31, 2018 Thanks for the replies Link to post Share on other sites More sharing options...
RMweb Gold Oldddudders Posted October 31, 2018 RMweb Gold Share Posted October 31, 2018 The cheapest solution is nail-varnish. I prefer clear, but YMMV. If you coat the railheads of the affected area you lose conductivity, but also the short. The cost of a bottle of varnish is not a lot. If it doesn't work you have lost very little. 1 Link to post Share on other sites More sharing options...
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