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Category: Model

DIY Programming on siding track with Z21 Starter

Posted on October 13, 2025October 13, 2025 by rmolins

I sometimes want to program CV to one locomotive without the need to remove other locomotives from the track (POM). To avoid this, added a siding with a DPDS connected to the Z21 white. This allows to bring a loco to the siding, change the switch, program the loco and after changing the switch again…

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Railway crossing internal circle

Posted on September 13, 2025 by rmolins

The internal circle railway crossing is made with the same process as the one of the external circle.

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Railway crossing external circle

Posted on September 12, 2025September 30, 2025 by rmolins

The external loop had a “dirt road” and a tunnel entrance that needed some improvement. After removing the dirt and cleaning, plaster was used to make a more leveled countryside road. Using a knife and an old wagon ensured clearance on the rails. Once the plaster is dry it is painted, ballast added to the…

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ROCO 10819 Z21 Ocupancy detection

Posted on November 8, 2024September 11, 2025 by rmolins

My objective is to have a compact, fully automated layout that allows playing with one train while others are automated. Knowing the position of a train is critical. After using Rocrail and iTrain I find the later easier to use. The final connection setup is as follows, The current configuration of areas in iTrain5 is…

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ROCO 10836 Switch decoder for controlling traffic light/signals

Posted on November 3, 2024 by rmolins

There are a various way to control the signalling on a layout. One possibility is to use the same P and N (rails) to have it fully integration inside the DCC addressing. For this option and using ROCO devices, the layout and material needed is: It is compulsory to connect P and DCC from the…

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ROCO 10836 Automatic switching

Posted on November 3, 2024September 11, 2025 by rmolins

Instruction manual can be quite confusing. Here is my simplified circuit installation in a NOCH preformed layout. The manual states that the switch must be connected to have a more robust connection. I have not being able to avoid short circuits following the manual. Making no additional connection to the switch work well. NOCH preformed…

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Recent Posts

  • DIY Trees for H0 scale
  • Improving the bridges
  • DIY Programming on siding track with Z21 Starter
  • Railway crossing internal circle
  • Making a wire tree

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