I'm sure I could have, but I would have also had to use DPDT relays, and another trigger zone that triggers when the train leaves the station. This seemed much easier with the timer. I had to keep my voltage on so the train wouldn't shut off (putting it into reverse). My yardsounds cycle when the train is stopped in the station. It takes long enough for the other train to make the loop that I get to hear a good amount of crew conversation before it is released.
Another good thing that I just lucked into is that when an MTH train is sitting idle, it doesn't respond to bell or whistle commands, so when I hit them on the trainsformer,only the moving train responds.
Wes
Looks like the makings of a great layout Wes. Good 3 dimensional interest and lots of loops in a pretty small place make it very fun to watch. I look forward to seeing the pink foam finshed off with your scenery plan. The trigger system for the station is cool....so you can set back and drink a beer while the trains go all day huh...Cool!
Roland
jpc675 wrote: Very cool. How do you get 2 trains to run on one track, stop at the station, and the other one knows it's time to go?I am sure it's like a track section that enables that? If there is a link, please post, new to the forum and to do a search....I'm lazy.
Very cool.
How do you get 2 trains to run on one track, stop at the station, and the other one knows it's time to go?
I am sure it's like a track section that enables that?
If there is a link, please post, new to the forum and to do a search....I'm lazy.
You could also use insulated track sections I believe.
Grayson
"Lionel trains are the standard of the world" - Jousha Lionel Cowen
I use the MTH infrared track section for the trigger. It is a infrared sensor that attaches to the track, and there is a relay in it that is tripped when a train passes in front of it. If you don't have MTH track, I'm sure you can use another companies, or even use DPDT relays. I chose this particular piece because it has a built in timer (variable length with the turn of a screw too!) of how long the relay stays open. That's the important part.
Lionelsoni told me to go get a bunch of Radio Shack bridge rectifier modules and string them together. This gave me the voltage drops that I needed for different sections around the track. I can pick any voltage from 6 volts and up to the usual 20. I leave the throttle at max and just pick the tap that I need. I just made an isolated section up that goes from the track piece just right of the 042 RH swich all the way around to just in front of the station, and set that for around 11 volts to slow the approaching train down. The infrared trigger is on the right corner of the station area, and the slow train trips it, and releases the parked train. The parked train sits on another isolated section at 7 volts, which is just enough to keep the engine on, but not moving. When the relay is tripped, it sends 14 volts to that section (it just overlays the 7 volts), and the train takes off. The relay closes a couple of seconds after the last car of the approaching train passes the IR trigger, and the train stops when it hits the 7 volt section again. That's pretty much it.
I have the two switches tied together so they always throw the same direction so there are no collisions.
If I want to run a single train without the stops, I can just bypass all of the varying voltages with a switch and apply the 20 volts,and control it with the transformer, like normal.
My next step is to wire up a control center that allows me to fine tune voltages to the different sections by rotory switches. I want to be able to have an open position on the parking train for locos that have to have all voltages dropped, or they keep moving forward.
Its 13' long, with a future siding of another 4' to the left that will extend into the next room. The left and right 042 curves are on 4'x4' sections, and the center is a 3' x 5'l ong section. I really wish I could have made it all 4' deep, but I don't think I would be able to reach all the way back against the wall, so I kept it 3' deep.
Thanks,Wes
Track plan looks great Wes, whats the size of your layout again? Nice video as well.
Keep the videos coming!
It's been slow progress, but I'm still finalizing the track layout. I think I'm pretty close. I need to get one more infra-red track piece so I can get one more train working at the track (3 total). Then I can start attachingthe track to foam,etc. The center area will be a wooded rural area. The station is on the right, and a pond and farm house will probably be on the left. Anyhow, here is a video...
http://video.google.com/videoplay?docid=7091961121355212721&hl=en
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