D&RGW • C&S • CB&Q • UP • AT&SF • CRI&P + SP • MP • WP

I Finally Close the Loop

Recording the progress of building the Denver’s RailRoads N Scale layout

All genuine posts are welcomed and will be acknowledged. Please submit your first post by email to: dennis@denversrailroads.com

I Finally Close the Loop

After laying a temporary loop of track where Denver’s North Yard should be, I finally have a complete loop of track. I can now work on completing the industry tracks, and building kits and scenery, on modules 1 and 1a. I can then operate South Denver as a switching layout. There are nine industries including Denver Ice & Cold Storage, the Denver Market & Produce Terminal (Wazee Market), the PSC Arapahoe Power Station and the PSC Gas Works, American Manganese Steel foundry, Centennial School Supply, J.I. Case (a Farm Machinery Distributor), International Harvester Co and Thomas Williams, a coal dealer.

Then I can start work on finishing the track laying for modules 2 to 5 and building Denver Union Station and the C&S Rice Yard.

A Peco Electrofrog Scissors Crossover. Works ok with fast moving locomotives but not so good at slower speeds. It will take some time to iron out the bugs, which I think are bad electrical connections. Polarity is not a problem as I have two Tam Valley Dual frog Juicers connected. At the other end of the Denver Union Station trackage is a Kato Scissors Crossover, which works like a dream without any extra support like a Frog Juicer.
Denver Union Station trackage from the north. Only main line tracks 1 and 2 are powered at this stage.
The temporary loop at the north end of Denver Union Station, allowing for continuous train running and a means of bringing the passenger trains back into the station.
The first time I have used suitcase connectors. Two failed to hold to the track properly. Its an easy solution if the track bus is already installed and running around the bottom of the baseboard. Screw terminals (my preference) and soldering are not an option. I am quite impressed. Will need to buy some more!

Almost there!

I have tested – and fixed up the track work – 6 of the 7 return loop tracks that form the Joint Line staging tracks. The 7th track only needs the installation of a frog juicer on one of the turnouts to be fully tested. By testing I mean the Atlas GP9 can successfully travel the length of the track, in both directions, without incidence. But only at speed step 12 (on my NCE Pro Cab) or greater at this stage. To move at really slow speeds will require cleaner track. And then I have to test the track with 10 or more freight cars backing thru the turnouts.

But for now speed step 12 is OK. I can now see if I can connect the two main lines running through Denver Union Station to the Joint Line Loop/South Denver module. And have power. Then it is on to the temporary return loop on Module 5.

There are about 20 Peco Electrofrog turnouts on Modules 1 and 1a but so far only 4 have required the installation of a frog juicer. I don’t understand why some work OK and others do not. Time seems to be a factor so I am expecting to connect a whole load more frog juicers – as can be seen in the photo – in the fullness of time.
The Atlas GP9 I am using to test the track. It has a non-sound NCE decoder installed. The peace and quiet is wonderful.

The Module Has Landed

Finally, I have finished all of the wiring for my two end modules (#1 Joint Line Loop and #1A South Denver — also known as Power Districts 10 & 11), dropped the Modules down from their 45 degree height to zero, or flat, installed the DCC Concepts Alpha Panel (same as a RRamp meter) and wired up the short indicator LED’s. The next job is to actually run a Loco on the rails to find all of my wiring cock-ups. Then I can connect to the temporary loop on the other side of the Denver Union Terminal tracks and be able to run trains in a loop. This will allow me to speed match all of my Locomotives, while I run them in and look for issues.

Booster #2 Meter Panel at South Denver and the Control Panel waiting to be populated with switches and LED’s.
Note the AML “Dime for Scale”.
40 Turnout screw connections on the left and up to 50 track blocks on the right.
All waiting to be connected with the switches and LED’s on the control panel and the NCE Mini Panel.
Joint Line and South Denver trackage.
You only need 2 wires for DCC.