My Salty's Hotel Project

Introduction

I'm going to try to build an HO model of a structure, Salty's Hotel, for the San Diego Model Railroad Association's HO layout, which is in located in the San Diego Model Railroad Museum in Balboa Park. The layout represents the San Diego & Arizona Eastern Railroad on the date April 24, 1949, based on information from a variety of historical sources. Salty's was an actual hotel that was near San Diego's Santa Fe depot at that time.

I'll be documenting the project in my Salty's Hotel blog page.

A Switch Machine With Little Depth For My Shelf Layout

I’m building a shelf layout 79.5” by 15.5” which will sit in a shelf area 11” high. Not much vertical space, so I want to minimize the layout base height.

I found a switch machine a height less than ¾”, from MRCS (Model Railroad Control Systems).

MRCS MP1 Switch Machine

The base will be a sheet of 1/8” lauan glued & screwed to a frame of 1x1” molding, and a layer of 1/8” cork on top. Since 1x1” is in reality 3/4” on the sides, this results in a 1” high base, with 3/4” cavity underneath: Adding the roadbed results in having 9/8” to bottom of track ties.

Layout Base

I mounted the switch machine to a piece of basswood as a mount platform, and cut a hole in the lauan to provide a recess, then fit the turnout to the machine above that. The basswood was cut larger than the size of the hole.

Mounting The Switch Machine

Attaching the machine to the basswood using a piece of two-sided mounting tape allowed me to make sure the machine would fit, and to adjust as needed.

I positioned the MP1 at one end of the base so the connector rod to the turnout would clear.

MRCS recommended replacing the connector rod with something more flexible; I used a piece of .025” phosphor bronze rod from Tichy Train Group.

I then attached a piece of roadbed and a turnout to the other side of the basswood using Gorilla Glue. I could still adjust the machine at this point to fit the connector rod from the machine into the turnout and position as needed.

I cut out a hole in the lauan and cork sheet where the turnout would be located, and removed additional material from the cork sheet to allow the basswood to drop in.  

I could then glue the basswood to the top of the lauan where the cork material had been removed.

After adding more roadbed under the turnout, wiring it up per the instructions, and testing, I screwed the machine to the basswood to complete the installation.

This photo shows the wiring, with a SPDT switch to control the turnout. A switching wall wart provides 12V power. Alternatively, for demonstration, a 9V battery connection is available.

Wiring It Up

Finally, here is a video of the switch machine in operation.

Painting Trucks

I needed to paint the wheels and side frames on my S-Cab project switcher, and MR had a recent article in which Cody Grivno describes some techniques for this ("Tank cars for Jones Island", April 2021, pg. 26).

He spays the side frames with flat black spray paint, then applies Vallejo Oiled Earth Wash. For freight car trucks, he temporarily replaces the wheelsets with a spare set to mask the sockets, but for the switcher, the side frames were removed as part of the project, so I didn't have to worry about sockets. I also applied little touches of gray and rust washes here and there. The following photos, which I took of some switchers in the 1990s, show the kind of effects I used for inspiration.  (Note that the wheels on locomotives really aren't very visible behind the side frames).

For the wheels, Cody brushes on Dark Rust from Mission Models, which I didn't have. Instead I tried Vallejo Model Air Rust, which I think looks very similar to the photos in the article.

I used Microbrushes for this work, and I liked the results. I plan to use these techniques going forward for all my locos and railcars.

Summary of the techniques:

• Use Microbrushes for brush painting.

• For the wheels...

1. If necessary, clean wheels with alcohol.
2. Brush wheel faces with Vallejo Model Air Rust (no. 71.080).

• For truck frames...

1. If necessary, mask wheel sockets with spare wheelsets.
2. Spray frames with Rust-Oleum Painter's Touch 2 Flat Black (no. 249127).
3. Apply Vallejo Oiled Earth Model Wash (no. 76.521).
4. Apply touches of Vallejo Dark Rust Model Wash (no. 76.507) and Pale Gray Game Wash (no. 73.202).

• Update - I decided on another approach to try...

1. Don't bother with spray painting.
2. Use a micro-brush.
3. Paint trucks using Vallejo Panzer Aces Dark Rust (no. 70.302).
4. Paint wheels using Vallejo Model Air Rust (no. 71.080).
5. Use Pan Pastels to add grime and additional rust.

Wire Connection Techniques

I've never had too much fun connecting two wires, and finally looked on YouTube for suggestions. My normal connection technique has always been the pigtail (see diagram below): Strip the wires, hold them together and twist, and solder. Cover the result with electrical tape or shrink wrap. The result works but is not as nice as butt connections, and takes up more space in tight situations.

But butt connections are impossible for me, with only two hands and my fumble-fingers. Especially with small gauge wire.

YouTube provide a technique I really like. Sadly I've lost the link and can't credit the YouTube poster. First, don't forget to slide a piece of shrink wrap onto one of the wires. The idea is to start with a pig-tail, then bend it half-way, press, and solder. Then bend at the bottom and press against one of the insulated wires, and slip the shrink-wrap over the connection. After the shrink-wrap is shrunk, f you can pull the connection apart you're either the Hulk, or you need to be careful around Kryptonite. This method is illustrated at the bottom of the following diagram.

Wire connection Techniques: Pig-Tail (top), Butt (Center), And My Preferred Method (Bottom)

What's really nice about this technique is that the result is very much like butt connections in terms of compactness and esthetics.

The following photo sequence shows this method: The pig-tail connection with the strands twisted together; the middle bend; a bit of solder applied; the base bend down against the gray wire; and the shrink-tube slipped over the connection, prepared for a blast from the heat gun.