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Update Free-Trak Standards
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Free-Trak.md

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---
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title: "Free-Trak Standards"
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subtitle: "**Version:** 0.1.0"
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subtitle: "**Version:** 0.9.0"
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layout: default
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---
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Free-Trak is a proposed N scale module standard that combines the ease of use and "bulletproof" connections of T-Trak with the module sizing flexibility of Free-MoN. This increased flexibility aims to make modules easier to integrate into home layouts and lead to more operational interest for clubs.
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Free-Trak is a proposed N scale module standard that combines the ease of use and "bulletproof" connections of T-Trak with the module sizing flexibility of Free-MoN. This increased flexibility aims to make modules easier to integrate into home layouts and lead to more operational interest for clubs.
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**Preliminary Version Disclaimer:** Please note that these standards are not finalized and numbering/content is subject to change. Diagrams will be added soon.
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<!-- ## Contents
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1. Module Dimensions
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2. Track Configuration
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3. Wiring Configuration -->
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---
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## Module Dimensions
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1. All modules, with the exception of end modules (either baloon loop or stub-end), must have at least two endplates
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1. All modules, with the exception of end modules (either balloon loop or stub-end), must have at least two endplates
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1. Endplate width must be between 12" and 24"
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2. Endplates must be constructed of a non-warping material (3/4" birch plywood is recommended, see Free-Mo reccomended practices)
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3. Endplates must be labeled with a "front" corresponding to the rail attached to a blue feeder cable (see 3.1, note that this does not neccessarily need to be the intended viewing location of the module)
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2. Endplates must be constructed of a non-warping material (3/4" birch plywood or reinforced 1/4" birch plywood is recommended, see Free-Mo recommended practices and example endplate laser cutting templates [here](https://github.com/UncommonModels/Free-Trak-Templates))
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3. Single track endplates must be labeled with a "front" corresponding to the rail attached to a blue feeder cable (see 3.1, note that this does not necessarily need to be the intended viewing location of the module)
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2. Modules may take any length and shape between endplates
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3. Modules must be 2 3/4" tall with adjustable feet (to maintain T-Trak compatibility)
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3. Modules must be 2 3/4" tall with adjustable feet (to maintain T-Trak compatibility)
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## Track Configuration
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1. Track at each end plate should be either single or double track with Kato Unitrack connectors and centered within the end plate
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2. Double track modules should use standard 33mm Kato track spacing
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1. Track at each end plate should be either single or double track with Kato Unitrack connectors and centered within the end plate
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2. Double track modules should use standard 33mm Kato track spacing
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3. The minimum turnout shall be #6 for the mainline
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4. The minimum curve radius shall be 11.25" (as in T-Trak)
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5. Tracks must overhang the endplate by no more than 1mm at the joints
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4. The minimum curve radius shall be 11.25" (as in T-Trak)
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5. Tracks must overhang the endplate by no less than 0.1mm and more than 1mm at each joint
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## Wiring
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1. Each double track module must be wired blue-white, blue-white, with a front side of the module labeled corresponding to the blue rail. Note that this is different than the T-Trak standard, to allow for the use of crossovers without flipping one set of rails and causing confusion.
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1. Each double track module must be wired blue-white, white-blue (for T-Trak™ compatibility)
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1. Single track branch line endplates shall be labeled according to either the corresponding wiring for how it branches off a main line or such that the "front" of a module corresponds to the blue rail on a module with only single track endpoints
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2. Andersen connectors shall be provided on each endplate, with one pair of blue and white connectors per track bus on the endplate
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3. All main lines on the module must have at least one feeder connection to the track bus
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4. Any balloon loops must be isolated from the main track and include an auto reversing circuit (to allow for use of crossovers on a double track main line)
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5. Use of a DCC system is required
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## Resolution of Ambiguities
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1. Ambiguities in the standards shall be resolved such that they maintain compatibility with T-Trak™ layouts
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## Recommended Practices
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1. All main lines on the module are recommended to have at least one feeder connection to the track bus
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2. Crossovers should include an isolated reversing section to allow for switching mainline tracks
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3. Use of a DCC system is strongly recommended
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1. Use of wireless throttles is strongly recommended
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2. Use of a DCC-EX based DCC system is recommended
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---
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**Changelog:**
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- Version 0.9.0
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- Switched wiring to match T-Trak™ standard
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- Removed DCC system requirement
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- Added ambiguity resolution section
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- Added recommended practices section

_includes/footer.html

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<div class="col-sm-4 my-auto">
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<p class="align-center"><a class="" href="{{site.baseurl}}/">Homepage</a></p>
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<p class="align-center"><a class="" href="{{site.baseurl}}/Free-Trak.html">Free-Trak</a></p>
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<p class="align-center"><a class="" href="{{site.baseurl}}/pyOLCB/">pyOLCB Documentation</a></p>
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</div>
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<div class="col-sm-4 my-auto">
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<p class="align-center"><b>Contact:</b> <a class="email" href="mailto:info@uncommonmodels.com">info@uncommonmodels.com</a></p>

css/style.css

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h2 {
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font-family: 'League Spartan', sans-serif;
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font-weight: 300;
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font-size: calc(10px + 3vmin);
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font-size: calc(10px + 2vh);
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width: 100%;
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}
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