Railroad Prototype Modelers special interest group

Nn3 - an Overview


An overview of modeling narrow gauge in the "small scales" (1:148-1:160); history of Nn3; commercially available motive power, rolling stock, track and controls; track-laying techniques; modules; example models for viewing.

Activity Changes: 
Day Time Room Changes
Friday, Aug 28 2:30 PM to 3:30 PM Three Sisters New

Building a realistic bulk oil dealership


Bulk oil dealerships in the prototype vary widely, and there may seem to be no two alike, but in fact there are a
number of features in common, which may be arranged in various ways. A number of prototype examples are
presented in the clinic, along with a detailed look at constructing an HO scale model incorporating the common
features of prototype facilities.

Day Time Room
Tuesday, Aug 25 1:00 PM to 2:00 PM Mt. Bachelor
Wednesday, Aug 26 2:30 PM to 3:30 PM Mt. Saint Helens

TCS WOWSound DCC - Take prototypical sound and operation to a new level


Train Control Systems will explain and demonstrate their revolutionary WOWSound Decoder. The only sound decoder with True CD Quality sound. Both Steam and Diesel versions will be demonstrated. Using features including Auto Adjusting BEMF, Audio Assist[tm], Keep Alive[tm] and others TCS will show how to make your locomotive sound and run just like the prototype.

Day Time Room
Wednesday, Aug 26 11:00 AM to 12:00 PM Three Sisters
Wednesday, Aug 26 10:00 PM to 11:00 PM Weidler

Extreme Weathering


The clinic is designed to teach some fundamental principles and rules of weathering and illustrate by showing various techniques so that a modeler can effectively age rolling stock to 'extreme' conditions. (Previously titled "Weathering - 101")

Day Time Room
Wednesday, Aug 26 10:00 PM to 11:00 PM Three Sisters
Saturday, Aug 29 8:00 AM to 9:00 AM Weidler

Box factories


Wooden boxes were the only and preferred package for shipping produce from fields and most orchards to retail outlets from the 19th century until the 1960's. Nearly a third of all pine timber cut in our nation, excluding that for paper, was used in this manner. This clinic uses photographs from the presenter's collection and experience as a machine operator in a Califonia box factory for illustration.

Day Time Room
Saturday, Aug 29 2:30 PM to 3:30 PM Mt. Hood

Placeville, CA: A complete district, to scale, as one layout


The earliest attempted crossing of the Sierras by rail terminated in this town in late 1887. By 1900 two large saw mills - one of which later built a connecting branchline - along with a box factory, fruit packing sheds , a foundry, and farms were all shipping products, while mines, businesses and farms were importing machinery, fuel, and supplies. From 1915-1953 traffic expanded up to two trains daily of 20-30 cars each in late summer and during WW II. Presenter illustrates with photos and maps.

Day Time Room
Friday, Aug 28 7:00 PM to 8:00 PM Mt. Saint Helens

Signaling your layout with DCC for control/operations

A discussion of the fundamental processes and steps necessary to design and build/install a successful layout railroad signaling system - basic to advanced.

Presentation will include the methods and hardware variations (options) needed to install and operate various prototype signaling systems. Included will be our experience and lessons learned having done/assisted/advised on several layouts in the Pacific Northwest and west coast. Time will be allotted for questions and answers during and following the presentation.

Day Time Room
Wednesday, Aug 26 1:00 PM to 2:00 PM Sellwood
Saturday, Aug 29 11:00 AM to 12:00 PM Mt. Bachelor

My experience with 3D printing - not for the faint of heart!


Over the last two years, I have been exploring the world of 3D printing, how it works, what it can possibly do for me in my modeling experience, some of the complications, some of the short comings, and how I can exploit this technology.

Day Time Room
Tuesday, Aug 25 8:30 PM to 9:30 PM Three Sisters
Wednesday, Aug 26 4:00 PM to 5:00 PM Mt. Hood

Building a Pegram truss bridge


Modeling an HO scale 216' railroad bridge with abutments based on a Pegram Truss design using CAD drawings, Central Valley bridge parts, and scratchbuilt styrene and brass components. In progress photos will be presented as the construction steps are discussed.

Day Time Room
Tuesday, Aug 25 4:00 PM to 5:00 PM Three Sisters
Wednesday, Aug 26 9:30 AM to 10:30 AM Three Sisters

Scratchbuilding a trestle based on the prototype


Modeling a 207' long, 73' high frame trestle in HO scale. Cutting stock basswood on a table saw and detail photos of bent and stringer construction are included. Slides of the second and fourth subdivisions of the Camas Prairie Railroad, taken on a Hi-Rail trip in August of 1993, will be featured.

Day Time Room
Tuesday, Aug 25 1:00 PM to 2:00 PM Weidler
Wednesday, Aug 26 8:00 AM to 9:00 AM Three Sisters


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