Here’s a quick Thunder Mesa Update video featuring a few areas of the layout that I’ve been working on over the last several months. More to come. Thanks for tuning in! You can see all new video releases on the Thunder Mesa Studio YouTube channel.
Engine 6, the Ollie Johnston, pulls ore train duty at the June 1st, 2019 Open Studio and Train Day. Open Studios happen on the first Saturday of each month in Jerome, AZ. Details on the Thunder Mesa Studio website. Hope to see you there!
Here’s a video look at the evolution of the scene at Hanging Rock on my Thunder Mesa Mining Company model railroad. Hanging Rock is a former railroad construction camp that now serves as a haunt for outlaws. This is an area that has grown and changed over the last couple years and hopefully this will give some insights into the process. Enjoy!
Check this out! There’s a big thunderstorm blowing in over the Thunder Mesa tonight, rattling the windows and waking up the dogs in Hanging Rock. This new thunderstorm simulation was achieved with components from Iron Penguin Electronics and will premiere live for guests at our March 2nd Open Studio!
Starting from Scratch
The one way to get exactly the structure you want on a model railroad is to design it and build it from scratch. The original water tower for Thunder Mesa Town was a built from a modified Banta Modelworks kit, but after I decided that it fit better in the scene over in Hanging Rock, I was left needing a new tank for this location. I've always liked the look of stone-based water towers, so when it came time to replace the tank at Thunder Mesa Town, I had a pretty good idea of what I wanted. I also wanted the railroad's herald to appear painted on the sides of the tank, and these requirements led to the materials and techniques used on the project as described below.
For the stone base, I turned to a versatile material that has been used many times before on the Thunder Mesa layout: Balsa Foam. Balsa Foam is basically the retail hobby version of the "gold foam" or "prop foam"used by Disney Imagineers and Hollywood prop makers. It has an excellent consistency for carving and no grain. I prefer the denser version sold as Balsa Foam II for its ability to hold finer detail. The stones for my pump house were carved using a hard HB pencil lead and a #11 hobby knife. I measured carefully for the doors and windows, and then carved out cavities for them so that they would appear recessed into the the masonry. Behind the window, I hollowed out a larger cavity so that the structure could be lit from within. Balsa Foam creates a lot of fine dust while carving so breathing protection should be worn.
Spray paint makes most foams disintegrate, but Balsa Foam is non-reactive, so the finished carving can be primed with your favorite brand of rattle-can paint. I used Krylon Ultra Flat Camouflage Brown. Once that had dried completely, the stonework was painted with inexpensive craft store acrylics. I chose colors that matched the scenery on my layout since I wanted it to appear that the stones were quarried locally. When satisfied with the painting, joint compound was pushed into the cracks to simulate grout between the stones. The excess was removed with a wet brush and, once dry, a thin, dirty wash of acrylics (basically the paint water) was applied over the entire structure to darken the grout lines. Then some individual stones were picked out with a small brush and random earth-tone colors.
I created lintels above the doors and windows with scale 6x6' strip-wood, a common architectural detail in the Southwest, then built the doors themselves from scribed basswood and wood scraps. The doorknobs are Atlas HO track nails, painted with Model Masters brass. The solitary window is a Grandt Line 6 over 6 masonry window casting cut in half and re-assembled with styrene cement. The roof panels, rafters and trim are all Crescent 300 illustration board. This material is about 1/16" thick and has an excellent surface for painting. I add woodgrain to the illustration board with a fine razor saw before scribing boards with a #11 hobby knife. Then I paint it with watercolors, using about a 50/50 mixture of burnt sienna and cobalt blue to achieve a silvery, weathered wood appearance. The watercolors soak into and darken the score lines and woodgrain doing most of the work for you. Heavily diluted acrylics could also be used for this, but I prefer watercolors. All of the basswood pieces were also stained a similar warm gray to match.
To achieve the look of old, pealing paint, I dabbed all of the trim pieces in likely spots with a latex resist known as Friskit. Rubber cement can also be used for this step but Frisket is specifically formulated for this kind of thing. Once the latex was dry, I airbrushed all of the roof pieces, doors, and windows with a dark, flat green. A half hour or so later, I rubbed the Frisket off with a kneaded rubber eraser to expose the bare wood underneath.
For the window, I simulated the look of old style, rippled glass by carefully painting Woodland Scenics Realistic Water onto the back of the thin acrylic glazing and then drying it quickly with a hair dryer. Since I didn't want the nearly solid interior of my structure to be visible, I also sprayed the back of the glazing with Testor's Dullcote once it was completely dry. Then all of the roof, trim pieces, and doors and windows were assembled onto the structure and cemented in place with Aileen's Tacky Glue.
To create a tank with the look of the Thunder Mesa herald painted on the sides, I turned to the technique of using realistic printed photo textures. I downloaded free hi-res wood textures from textures.com and then created my tank wrapper in Adobe Photoshop. I use Photoshop daily in my work as a commercial artist so this was second nature for me, but I understand that it is expensive software and has a steep learning curve. However, there are a few open source programs available like Gimp that can be used instead with very good results.
I made careful measurements as to the thickness of the tank slats, bands, and the relative positions of the heralds as all would appear on the finished model. I also added water stains and weathering in Photoshop by selecting and desaturating certain areas. Then I printed several copies of my tank wrapper on Epson Premium Matte Presentation Paper using the highest quality setting on my inkjet printer.
To build the tank, I laid out two 2.5" diameter circles on illustration board using a compass. Then the circles were cut out with a hobby knife. To insure that the circles were perfectly round and would align properly, I placed one atop the other and then drilled the compass point holes all the way through. Then I could chuck them up together in my Dremel tool and turn them against 300 grit sandpaper until the edges were perfectly matched and even. Cardstock supports were cut to size and glued in place for the tank interior, and then the entire assembly was wrapped with Bristol Board to form a cylinder. Bristol Board is a heavy illustration paper that shapes easily.
Once the tank structure was built, I laminated one of my tank wrapper printouts to a second piece of Bristol using 3m Super 77 spray adhesive, using a good even coat, and rolling with a brayer to insure good adhesion. This was then cut out and carefully glued in place around the tank structure using white glue. Rubber bands were used to hold everything in place until the glue set.
With the tank wrapper cemented in place, I repeated the laminating process with a second printout, and then cut out the individual tank bands to glue over the printed bands on the tank. The white paper edges of each band were carefully painted dark brown before each was cemented into place. This took a little time, but was well worth it for the convincing 3-d look achieved, especially around the TMMC heralds. Then, the bands were finished with white metal tank band fastener castings from Wiseman Model Service - a hobby supplier that I highly recommend.
Turning to the roofs, scale 4x8's were cut to size, stained, and then glued in place to form a support structure for the tank. Then I finished the pump house roof with laser cut printed paper shingles from Bar Mills and these were given a heavy weathering with various shades of colored chalk dust.
I wanted a conical roof for the tank, so a support structure was built from illustration board. The base is two disks, one slightly smaller than the other, and both turned in the Dremel and sanded to be perfectly round before being cemented together. The upright triangular pieces form a hexagon. This structure was then "skinned" with thinner Bristol to form a base for the shingles. The underside of the tank roof was painted a flat dark green to match the rest of the trim on the structure.
The tank roof was then shingled with Bar Mills laser cut paper shingles. This was not as easy as it sounds since their shingle strips are designed for straight roofs, not curves, and the strips had to be cut down to just 2 or 3 shingles each to match the conical shape of the roof. After this step, a finial cap was constructed from a small cone of Bristol Board and the head from a dress pin. This was primed, then painted with Model Masters Copper before being glued in place. The finial was then heavily weathered with blue-green colored chalks to suggest oxidation and tarnish. Then the rest of the roof was similarly weathered with gray and brown chalks.
Before shingling was complete, a small hatch was made for the roof from scribed basswood, wire, and some scraps from the drawer. All of this was stained and weathered to match the rest of the tank.
The spout, weights, and pulleys are Grandt Line white metal castings that were given to me by a friend of the railroad. I cleaned up the castings and then painted them with Krylon Ultra Flat Camouflage Brown paint from a rattle-can. Then I went back with a rag dipped in paint thinner and rubbed some of the paint away in likely areas. Rust and lime deposits were added by painting on colored chalk dust mixed with 70% isopropyl alcohol.
The spout hanger, or yoke, was built from scale stripwood, and the cables are elastic thread that has been stained silver-gray with diluted acrylics. All of this was assembled and glued to the tank before it was cemented to the stone base. Then the roof was carefully aligned and cemented in place with white glue. A final detail was the addition of an inflow pipe to bring water from the creek to fill the tank, a white metal piece left over from the Grandt Line spout assembly.
For a finished look, some matching trim was cut from stripwood, then stained and painted in the same manner as other trim on the pump house before being cemented in place below the tank. A short smokestack was created from a soda straw with a piece of styrene flashing, painted and then glued to the pump house roof as evidence of a steam powered water pump inside the structure.
Finally, a ladder was built for the tank using two sections from a Bar Mills laser cut ladder kit. A bracket built from scrap stripwood connects the ladder to the tank and pump house roof. The warm glow from the pump house window is provided by a 3mm yellow LED, wired to this layout section's 12v DC lighting, sound, and animation bus.
I little bit of touch up here and there with a small brush, and a little more weathering and blending with chalks, and the finished model is ready to be worked into the scene. Now it can do its job, filling the saddle tanks and tenders of thirsty steamers on the TMMC.
As always, thanks for checking in and following along. I hope some of you will find the techniques and materials described here useful. I'll be happy to answer any questions in the comments section below. Keep moving forward, amigos. Adios for now!
Help Support the TMMC
They say that time flies when you’re having fun, and that has certainly been true of 2018 on the Thunder Mesa Mining Company model railroad! Here’s a look back on the year with all the projects and people who made it so special. Thanks to all the friends who helped make 2018 a great year for Thunder Mesa Studio and the TMMC and I hope to see you all in 2019! Happy New Year!
An Adventure in 1:32 Scale Modeling
After a visit from Scott Carter and his wonderful Cinnamon Creek Mining Co. layout, I became inspired to build a small, portable layout of my own. Wanting to do something a bit different from the TMMC and other modeling I had done, and following a correspondence with another fine modeler, William Dickman, who introduced my to the idea of 1:32 scale industrial narrow gauge, I landed on the idea of an outlaw trail themed mining layout in 3/8n20. In truth, the idea for something called "Bandit Canyon Railway" had been gestating in the back of my brain for a couple of years and it just needed a little push to get it started.
1:32 Scale + HO Gauge = 3/8n20
Most readers may not be familiar with the scale/gauge combination of 3/8n20, it is certainly not a common modeling scale, even to die-hard narrow gauge modelers. 1:32 scale is common enough, and is quite popular with large scale modelers to represent standard gauge trains on 45mm gauge track. It's also a common scale for model airplanes, die-cast cars and tractors, and some ship models. 1:32 scale is 3/8"=1', so it's right there in between O scale at 1:48, and F scale at 1:20.3 (there's really no such thing as "G scale," by the way, there's 1:32, 1:24, 1:22, 1:20.3, and others all running on 45mm track to represent different gauges!).
In 1:32 scale, HO gauge measures out to about 20" between the rails. This means that one can use HO and On30 mechanisms, wheel-sets, and chassis as a starting point for some quaint and chunky industrial narrow gauge equipment in what amounts to 3/8n20. This scale/gauge combination is rare enough that it doesn't even have a letter designation like O, HO, S, or N. If anyone ever asked me, I might suggest "Q" for 1:32 scale trains and that would make this project Qn20. The Q stands for "quirky." But I'll leave it up to the NMRA to sort out the alphabet soup.
Building a Planning Model
Since the BCRy is to be a portable layout, there were a few problems I needed to work out before starting actual construction. Specifically, I wanted to see how my plan for having the layout travel inside its own stand/base would work out in practice. The solution was to build a 1:8 scale planning model. As a bonus I could work out the sight-lines, color scheme and other aspects of the scenic treatment at the same time.
Using my track plan at the top of this page as a guide, I constructed the planning model from 1/16" thick cardstock and extruded polystyrene foam. The finished layout will measure 35" wide, 60" long, and 44" high with the backdrop. For travel, it will nestle securely down inside the slightly larger base, and the entire set-up will stand nearly 8' tall when assembled. The roof above the layout will house lighting, and doubles as a lid when everything is boxed up. The whole thing will roll around on swiveling castors.
Scenery was sculpted from EPF in a similar manner as the rockwork on the Thunder Mesa layout. Building the planning model gave me a chance to work out sight-lines, like views of the town of Hole in the Wall through the natural arch. The rockwork is based on formations near Bluff, Utah.
A 3/8n20 Locomotive
The next thing needed as proof of concept was an actual 3/8n20 locomotive to pull trains around the planned layout. Starting with an On30 Bachmann Porter, I quickly put together a new cab and stack to see how the proportions would work out.
The cab was knocked together from illustration board and wood scraps from my scrap-box, and the stack is some plastic tubing joined to castings from an old MDC-Roundhouse HO kit. Nothing too fancy or detailed yet, but enough to give a feel for the proportions of a finished 3/8n20 mining engine. The last photo shows a size comparison between the 3/8n20 Porter and an unmodified On30 Porter. All in all, I'm very pleased with the chunky and narrow look and can easily see it fully detailed, weathered, and pulling a string of mining gons. One question left to answer now is how to control the trains. Standard DC, digital DCC, or some form of Dead Rail battery power? Another is, what kind of track to use - Peco On3o, Micro Trains, or hand laid? Dead Rail would mean fairly trouble free operations, and hand laid track would look fantastic on a small layout like this. Stay tuned for further developments from Bandit Canyon country to see where this adventure leads!
Thanks for checking in, amigos. Adios for now!
Support the TMMC
It’s a beautiful day for flying, so climb aboard our airship as we go Soarin’ Over Thunder Mesa! Yes, it’s time for another Thunder Cam and some wide-open, overhead views from high above the layout. Enjoy!
Since I'm often asked about the scenery and structure techniques used on the Thunder Mesa Ming Company and other projects, I've decided to produce a new series of YouTube videos with a step-by-step, "how-to" focus. Welcome to the first two videos in that new series, "How To #1: How to Build Scenery with EPF and Sculptamold" and "How To #2: How to Paint Rockwork and Add Ground Cover." These video brings together both new and existing footage to show scenery building and finishing techniques, and to answer the most common questions about how things are done on the On30 Thunder Mesa Mining Company layout. There are several more "How To" videos in this series on the way so don't forget to subscribe on YouTube. Thanks for watching!
Support the TMMC
Second Star to the Right and Straight on 'till Morning
The HOn30 Skull Rock & Neverland Ry. is a pure flight of fancy. Now in the early development stages, this little layout will seek to answer the question of just what kind of railroad a fantastical land of Lost Boys, pirates, mermaids, pixies, and Indians might have. Most folks don't know this, but one of the more valuable ores mined in Thunder Mesa Country is the extremely rare and magical Neverlandium, a volatile, glowing mineral that can cause children to fly when accompanied by the thinking of happy thoughts. Naturally, most of this ore is shipped off to the Skull Rock & Neverland where it is used for everything from powering the locomotives to fertilizing the lush island plant growth. Perhaps this valuable ore is what first drew the attention of Captain Hook and the crew of bloodthirsty pirates who plague the island to this very day.
For the uninitiated, HOn30 (or OO9) is basically 1:87 HO scale trains running on 9mm N gauge track. It's most often used to model the 2' narrow gauge lines that once ran in Maine, but I've long been fascinated by the possibilities of this scale/gauge combination, and see it as an ideal jumping off point for something with a British flair. I've also been wanting to do something with a pirate ship - specifically Captain Hook's pirate ship. I grew up with Captain Hook's at Disneyland where it housed a tuna restaurant at its anchorage in cool, scenic Skull Rock Cove. That ship has been long gone since the '83 redo of Fantasyland and it may never come back, but I can have my own version with my own Skull Rock in a little slice of Neverland. This project will be built across the aisle from the Thunder Mesa layout in a narrow 2' x 6' space near my workbench. Much of Neverland itself will be conveyed by the backdrop, and the railroad will wind it's way along the waterfront of Pirate's Cove. Minimum radius for the curves is 9" and the grade is to be determined.
Hope you'll follow along as this project develops!