The way to do it is to have an insulated rail placed just after the first switch trigger a normally closed relay, which would be open when the train is still on that first switch, but closed as soon as the train passes it. don448@aol.com wrote: > >This is my second reply . I've been thinking along the same lines as >you as to somehow using an insulated section to prevent the switch from >throwing. If you could somehow keep the first switch from activating >until the LAST car passed over the second switch instead of it >activating on the FIRST car, then the train would be totally through >the second switch before activation of the first switch. Could you >move the fibre pins from the switch to further on down the line? >Regards, > >Don > > > > > > >-----Original Message----- >From: don448@aol.com >To: ttat-members@aoot.com >Sent: Sat, Dec 4, 2010 9:58 am >Subject: Re: #1122 Switch wiring 027 gauge > > >Mike, > It's not pretty, but it is accurate. > >Don > > > > > > >-----Original Message----- >From: Michael Graziano <mgraziano@austin.rr.com> >To: ttat-members@aoot.com >Sent: Sat, Dec 4, 2010 9:14 am >Subject: RE: #1122 Switch wiring 027 gauge > > > >Don, > >You know, now that I think about it, you _may_ be able to accomplish >this by using an isolated outside rail track section. I would have to >see the track layout to know. Do you have a photo or a diagram? > >-Mike > > >From: ttat-members-owner@aoot.com [mailto:ttat-members-owner@aoot.com] >On Behalf Of don448@aol.com >Sent: Saturday, December 04, 2010 9:01 AM >To: ttat-members@aoot.com >Subject: Re: #1122 Switch wiring 027 gauge > > >Thanks Mike. I came to the awful conclusion that those were my >options. I feel good that my analysis was backed up by knowledgeable >club members. Thanks for the response. Don > > >-----Original Message----- >From: Michael Graziano <mgraziano@austin.rr.com> >To: ttat-members@aoot.com >Sent: Fri, Dec 3, 2010 10:34 pm >Subject: RE: #1122 Switch wiring 027 gauge > > >Don, > > > >I understand the issue. The answer is more track between switches, or >shorter trains. What you are looking for is a delayed switching action >(waiting until the last car clears). Unfortunately, it doesn’t work >that way without electronics. > > > >-Mike > > > > >From: ttat-members-owner@aoot.com [mailto:ttat-members-owner@aoot.com] >On Behalf Of don448@aol.com >Sent: Friday, December 03, 2010 10:05 PM >To: ttat-members@aoot.com >Subject: Re: #1122 Switch wiring 027 gauge > > > > > >Scott, > > >Thanks for the reply. I have to study it further, but if what I think >you are saying, the two switches are activating simultaneously! My >system is working that way. That is my problem. The tail end of the >train is not yet over the second swtch when the first switch activates >it. The system works great as wired if I have a short train and the >final car clears the second switch before the first switch activates. >My problem is with a longer train, then the end of the train is still >on the switch when it activates. I think my wiring is correct. I'm >just trying to get it to do something it can't. I was hoping for some >jumper wire fix that would prevent the switch from activating while >there was still a car going through it. When the train starts into the >switch, it is in the correct position, its just that the position is >changed by the train going through the first switch causing derailment. > > Regards, > > > > > >Don > > > > > >-----Original Message----- >From: scott smiley <sc.smiley@juno.com> >To: ttat-members@aoot.com >Sent: Fri, Dec 3, 2010 9:03 pm >Subject: Re: #1122 Switch wiring 027 gauge > > >When I have done this I used it in a figure 8 set up. What you want to >happen is for the train entering from one loop to change both switches >at the same time and then go to the other loop. The as it comes back >around tot he first switch it auto flips to be correct as it enters and >switches the other to be the out bound on the other loop. Sounds like >it should work. Now for how. > > > > > >When wired together, as a train enters one switch it needs to turn the >second as well and then as it goes over the second there should be no >switching. Thus no derailment. If the outbound train on the second >switch is turning the first switch under the train that is the bad >result you mention. There are only two wires need to do this >interconnect. these wires need to either connect the same posts on each >switch or cross the posts. What you need is the second switch >outbound track let's say the straight leg, to be connected to the first >switch inside track, the curved leg. One post is connected to each of >the insulated rails on the switch. So as a train comes into the first >switch curved track it sets the second switch to straight. AS the >switch goes out the 2nd switch nothing should happen to the switch and >the train goes into the outside loop from the straight side. Then as >the train comes around on the outside loop to the first switch it flips >and also flips the second switch to the inside loop. > > > > > >It should be a matter of connecting the control posts together. the >ground, third post is not needed, or can be connected together. This >should run automatic and not need a switch controller. > > >For what it is worth. > > >Scott > > > > > > > > >On Fri, 03 Dec 2010 11:07:17 -0500 don448@aol.com writes: > > > >I have set up a track layout using a set of 1122 switches that are >cross-wired to alternate between two loops. As the train passes over >the master switch it simultaneously resets the slave switch to the >alternate loop. This works great on the long outside loop and when the >train length is less than the distance between the two inner loop >switch points. However, in that the two switches activate >simultaneously, the slave switch moves to the outside loop as the train >passes over the master switch while in the inner loop, thus derailing >the train which is still passing over the slave switch. Is there some >way to either keep the slave switch from activating while the train is >still on it? I've tried switching wires around, but it either works as >it is wired, or not at all. Is there some way to jumper something? > > > > > > > > >____________________________________________________________ >Refinance Now 3.4% FIXED >$160,000 Mortgage: $547/mo. No Hidden Fees. No SSN Req. Get 4 Quotes! >Mortgage.LendGo.com - sent from my Droid. ------ TTAT members reflector.