MODELING: Applying Technology to Model Making

A lot has been written on how 3D printing is changing the way modelers create things.  The concept of creating models using 3D has long facinated me. I saw a model of a F-16 fighter printed by a machine in our engineering labs back in the 1980s.  The model was crude by todays standards but remarkable for its time.  The design tool was a huge program called CATIA.  It ran on a mainframe.  Years have passed and technology has made huge strides.  Now you can do design on a PC or MAC at a reasonable price.  Printers are getting better and cheaper.  Cheaper is a relative term.  Formlab has a very capable machine that will produce beautiful parts.  The old saw about getting what you paid for is very true when talking about printers.  However, don’t expect high quality capability for less than $1000,  There are service bureau such as Shapeways that will print your designs.   I have purchased parts from Shapeways but have not been impressed.  The parts lacked a smooth surface and had evidence of layers from the printing resolution.  The highest quality parts cost more due to the amount of machine time required.

The part shown above was printed on a Formlab Form 2 machine.   The part is a bolster/saddle for a GATC tank car.  A complex part that is the strong suite of 3D process.

The picture shown above is what a set of parts rendered on design software.  The design is an Universal 5934 hand brake set.  These were applied to flat cars starting in the late 1930s.

Here is the hand brake assembly installed on a Pere Marquette 70-ton AAR flat car.  It was a common hardware item found on a wide range of cars.

Ross Dando has started a small 1/4″ scale kit business called Twin Star Models.  His first product is a Rock Island rebuilt 53′ flat car.   The project needed a special hand brake set for the car.  He contracted with a 3D designer to develop the part based upon drawings.

The designer used a process of printing a type of resin that can be burned out in the brass investment process.  The blue parts shown below are sent off to a brass foundry for casting in metal.

The benefit of this approach is that the resulting castings are super sharp when compared to creating a mold to shoot wax investment parts.

The parts are shown assembled and installed on a the end sill of the flat car.

Ross has created an extremely useful and essential part.   There are several cars I can now build when that it becomes available.  Special parts like specific decal sets are enabling items that allow great models to be built.  Ok, I am a bit of a foamer that counts rivets.   Proto48 is about  doing the model right.  It is about quality not quantity.

Ross Dando’s flat car is a tour d’force in fine pattern making.  The resin castings were done by Jon Cagle who is the best.

Good stuff coming our way!

 

Gene

 

 

 

 

 

 

 

 

 

 

 

 

Advertisements

NEW PRODUCTS: Modern Boxcar Kit and Assorted Goodies

It seems that the vast majority of craftsman/urethane kits have been focused on  the steam era.  Bill Yancey has changed that paradigm with the launch of his new 50 foot FMC boxcar kits.  His company is Modern Era O Scale.  He has invested a lot of time into making superb patterns and having them cast by the best foundry in the US.   The result is a product that will grab your attention.  This series of FMC cars are common in the modern railroad scene.   The Western Pacifc car was assembled and finished by Bill.

He used a novel technique for finishing the car.   Bill learned about using gouache at the Bridgetown RPM meet held in Portland,Oregon.  Here are his words describing his method. Gouache is an opaque watercolor.  It comes in tubes and available at your local art store or online. He used 4 colors: black; burnt umber; burnt sienna; and orange.  To keep them from just beading up, you paint them on at full strength.  Bill has had the best luck using an artist brush called a ‘filbert’.  It is stiff bristled and rounded. Then you use a lint free cloth to start wiping the paint down until you have the weathering you like.  The great thing about gouache is that it’s completely reversible.  You can then overspray with Dullcoat.  Then you can add more weathering if desired without disturbing the weathering already done. I have a tendency to accidentally over weather. Being so easily removed has been a big help in mastering the technique.

The kits can be puchased from his website and are sold less decals, couplers and trucks.   There are different configurations available.  The prices is $160 plus shipping.

Jimmy Booth tried his hand at the kit finishing it with an extreme weathering job.  Paint failure was done with hairspray I believe.

Protocraft continues to bring new products to the market.  Recently Boo Rim delivered a new Pennsylvania Railroad truck called the 2D-F12.  Like all of his recent trucks, this type has ball bearings on the axles and ribbed backed metal wheels.   The truck has a leaf spring which the prototype used to control oscillations in the coil springs.   The PRR used this truck on the following car classess:

FM, F32, GLa, GS, K7a, XL and X23 through X36.  In some cases these trucks replaced 2D-F8 trucks which had all coil springs.

The truck has a uniform bolster height which makes it easier to upgrade existing cars in your collection.   It is a very clean set of brass castings assembled with care and mechanically sound.

The trucks sell for $52.95 plus postage.  They can be ordered via the Protocraft website.

 

Speaking of Protocraft, Norm recently posted a bunch of new decal sets.   There was a backup at Microscale due to a very large order of airplane decals for someone in the UK.  Things are getting back to normal in terms of turnaround.

A new resin kit supplier has entered the scene.  They are Twin Star Models.  Their first offering will be a 53′ steel flatcar once owned by the Rock Island.  The railroad spiced the cars to add length to fifty-three feet.   Here is a sample of what Twin Star is doing.

This a shot of the uerthane deck for the kit.  It is far and away the best “wood” deck I have ever seen.   Can wait to throw some weathering on this beauty.  You will be able to see the pilot model for this new kit.

Thanks for stopping by

Gene

 

MODELING: Branchline Steam Power

One of my all-time favorite steam locomotives is the Katy 4-4-0.   Specifically, a model that Bruce Blalock owns.   Bruce is a lifelong Missouri-Katy-Texas Railroad fan and a very knowledgable historian.  The model is custom built masterpiece done by Kelley Morris.  Bruce commisioned Kelley to create a 1/4″ scale model of his favorite locomotive. Kelley is professional model maker and owns Kelley Morris Models and Miniatures.

Bruce Blalock Photo

I reached out to Bruce to supply some photos of this wondeful locomotive.  He was in the process of taking pictures for a clinic he is presenting at the Katy Historical Society convention.   Bruce supplied the photos and a little background to go with it.  The 311 and some of others were retained for branchlike passenger service. The two significant areas were Wichita Falls north (trains 53 and 54) and Waco west (trains 35 and 36). In Texas the consist was a 70’ RPO and a 60’ wooden coach made from a combine. I have one about 1/3 finished.

They were renumbered in four digits to have the 300 series available for diesel numbering in 1949 and were out of service by 1950. The 311 was retained by the Katy for a museum train which was donated to the St. Louis Transportation Museum in 1952 and it is the only surviving Katy steam engine.

The E-3 class of engines were built by Baldwin in 1890 and rebuilt by the Katy shops in 1924. Rebuilding is a funny word. The only pieces that I’ve determined that were from the originals were sand domes and tender trucks. They got new boilers from Alco, new longer frames and new, larger diameter drivers. I’m sure there were tax credits to rebuild rather than replace.

Thank you Bruce for sharing your beautiful American.

Gene

MODELING: NP Automobile Car Kit 4.0

I have made a little progress on constructing the vintage (2006) Chooch Ultra Scale II kit.  The car is getting closer to going into the paint booth.  It is always motivationaly  refreshing to get paint on the model.  I find my enthusiasm tends to hit a low point about this point.  The smell of the lacquer fumes gets me charged up to throw some decals and weathering on the car.  Satisfaction of viewing the completed model is what we all seek (I think).

The primed model is very close to the final finish.   I will show you some the things I did to get it to this point.

I decided to build the model with a partially open door on one side.   I find that building up the area behind the urethane door provides better support for the door and a larger bonding surface.

Detailing the side can start once the doors are in-place.  The Camel door hangers are installed along with the stops.   The door guides are installed next.  They are very fragile and can easily be snapped off.   I painted the gap in the door opening to see if it will give the illusion of a dark inside.

The fully detailed “A” end with all the Camel hardware is complicated but fairly quick to complete.  The plastic latches turned out a bit short when tooled.  The kit should have enough parts to splice the bars and extend their length.  A little plastic putty fills any gaps or seams left from the splice.  You may have noticed the foam pad under the car.  I like to place the model on something like this while detailing the model.

At this point I shifted to the running board construction.  Running boards scale out to be .025″ thick.  You can buy styrene strips with this thickness so just laminate a .015″ and .010″ using a solvent-based glue like MEK (except in California) or Tamiya Super Thin.  I like to use Tichy .020″ rivets to simulate the carriage bolts used to attach the running boards to the roof.  Once installed I will go over with fine sand paper and greatly reduce their height.  They will be less obvious once painted.  My poor drilling will be less obvious is what I ment to say.

The Northern Pacific used a different style of lateral running board on their wood cars.  The boards are oriented crosswise rather than the more tradional configuration.  I use the .025″ laminated material to build up the laterals.  Assembly is quite easy with a simple jig and some .020″ spacers.  I add straps to the underside to hold the boards into an assembly.

I have included an excerpt from the general arrangement drawing to show position of the grab iron and bolts.  You can also see the steel straps used to support the lateral running board.

The kit provided injection molded laterals that are too short.  They were tooled for one of the earlier Chooch NP kits.  That is why I had to do my own.  The boards need to be 48″ long.

I used an etched brass part to create a support for the lateral running board.  It was designed for a 10,000 series NP boxcar but it seems to fit the car well.  A friend had a bunch of little parts etched for NP cars several years ago.  Sadly, the etching company burned down and the gerber was lost.  I wish that I had a few more parts…..

Well, this concludes this chapter of my build.  Next time, I will have paint and a brand new set of Protocraft decals just released for this car.

Gene

 

 

 

MODELING: North of the Border By Lee Turner

The CN car was painted a dark red brown mixed from Model Master acryl colors Rot Braun (German camouflage color, red brown) and leather with a couple drops of burnt umber to darken it further. Not all colors should be lightened! After paint and the decals had 24 hours drying time the sides were given a heavy wash of Vallejo dark brown wash and when dry most was removed with Mean Green dampened paper towel working from the center of the panel to the edges in a vertical motion. This left the seams, rivets and edges darker and blending into the brighter color in the center of the panel. A thin mixture of MM Leather was sprayed in the center of the panel for highlights and thin Burnt Umber was used to darken riveted areas further. This left the lettering very dark and dull after all the steps above. A microbrush, a tuft of fiber on a plastic stick was used with Mean Green cleaner to clean up the lettering. I left the grime on the green of the leaf as it didn’t stay clean like the lettering. Final steps were air brushing the repack patches and reweigh areas using index card mask’s. Over the capacity data I sprayed right over the lettering and then lightly cleaned the red from the restencilled caapacity. This gave tha appearance of lettering that bled
 after being applied. Many roads did this outside in rain or snow or whatever. Some white wash was used to show the lettering bleeding.
  The CP car was painted with Model Master Rust, Rot Braun and some Guards Red.A lighter coat of Dark brown wash was done to the sides and even more was cleaned off just leaving a hint of shadow. Then a light brown wash (Vallejo European Dust) was applied from an almost dry brush in vertical streaks. Lastly the rivets and seams were dry brushed with Vallejo Dark Rust. Once again the lettering was cleaned up with a micro brush and Mean Green. Finishing touches were re-sprayed repack patches, remains of paper door seals on one door and remains of a paper grain door behind the other door.
The door seal paper residual is made with cigarette paper like the brand Zig-Zag.   I suspect that most purchasers of Zig-Zag never though of using it to simulate door seal paper.
Lee Turner is a resourceful modeler who has innovated many techniques for modeling.  The paper is very creative.
By the way, the boxcars are imports from Protocraft and are based upon the 1937 AAR design with a Murphy flat roof, Dreadnaught ends and sill steps on the end ladders.  The Canadian roads bought huge numbers of this design.
Thank you Lee for sharing your art with us.
Gene

MODELING: Memories of Lampasas, Texas

Bruce Blalock’s days attending college at Texas Tech were brought back into focus when he received a scratchbuilt model of the Lampasa depot.   The late Jim Hickey built the model from stryene based upon his visit to the site.   Jim gave the 1/4″ scale model for helping with the disposition of his collection.  recalls his college days traveling to Texas Tech.   Bruce has shared his stories of train trips in the 1960s.  He also took the photos shown in the posting.

Until I went off to Texas Tech I lived in Burnet, Texas. Lampasas was 22 miles north of Burnet and the Santa Fe grazed the North side of town. There was a wye where the line went into town, named Radio Junction, which had a passenger shelter. In older days, the passenger trains would actually go to the Lampasas station, then go back out to the main. By the 1960s it was a flag stop for the California Special, Train 75 and 76, and the few times that I rode westbound to Lubbock the nighttime drill was: point the auto east and when you saw the locomotive headlight, flash the car lights and the engineer would stop. Then you would board, pay the conductor and wake up in Brownwood where four passenger trains met, switched and go on their way. You would then wake up around Slaton to the scent of Santa Fe’s special blend of Chase & Sanborn coffee with ham and eggs cooked over charcoal. Arrival time in Lubbock was 0715 with westward train departure at 0730. The arrival time meant one could make it to an 0800 class, usually well rested.

At Brownwood, the California Special, 75 and 76 interacted with trains 77 and 78, Dallas-Fort Worth-Brownwood-San Angelo. They interchanged cars and units in the wee hours. No. 75 also picked up a T&P mail car at Sweetwater and set it out at Lubbock. Also 75 and 76 connected at Lubbock with trains 93 and 94, Lubbock to Amarillo. It was a good time to see Texas passenger trains.
It seems like there were always Houston-area Texas Tech kids on the train, especially around holidays, along with other colorful characters. One of those whom I met was Haystacks Calhoun, a professional wrestler who weighed over 600 pounds and could barely go between cars. Haystacks wore a heavy galvanized chain necklace over his overalls and wanted to play cards. My money was appreciated enough that I didn’t want to give it away, so I didn’t play.
The photograph was made by Fred Springer on May 26, 1963 (courtesy of the John McCall collection  contributed by Jay Miller ) when the name board was called a “ blind siding sign .
The wonderful model of the shelter by Jim Hickey in O Scale is complete in every way, right down to the schedule on the train bulletin. It also has the replacement telephone pole added just like it was on his visit with the fresh dirt and all.

The building was moved to ranch of Lloyd Lively near Lometa and converted to a cabin for deer hunters.  Unfortunately it was demolished in 2003.  By the way, the baggage wagon is of a “high type” that was designed for loading caskets.
For those of you who do not know Bruce, he is a lifelong lover of railroading.   He has modeled in Sn3, On3 and O scale.   At one time he organized a modelers get together called the Bull Shoot.  It drew a wide range of modelers to share ideas and techniques.
Bruce is a retired Union Pacific locomotive engineer and an occasional steam loco engineer on the Austin Steam Train.
Thank you Bruce for sharing you experiences and photos of the wonderful model.
Gene

MODELING: CB&Q XM-32 Express Boxcar

The Chicago Burlington & Quincy Railroad was one of the legendary granger roads that operated some comfortable passenger accomodations between the cities like Denver, Chicago and Fort Worth.   Quarter-inch scale modeler, Santiago Pineda, is a real dieheart fan of the road.  He has amassed a sizeable collection of equipment and locomotives.  He does put his stamp on each and every model with paint and or details.  Santiago hails from Bogata, Columbia.  He studied at LSU.  Somewhere along the line he develped a serious interest in the CB&Q.

Express boxcars are an interesting application of what looks like a standard AAR steel boxcar.  Railroads depended upon bulk mail, priority LCL shipments as a means for making money off of passenger operations.  Configuring a boxcar to run in high speed passenger service entailed changing or adding hardware to perform in this service.

Here is Santiago’s description of his project:

The CB&Q Havelock erecting shops delivered their first class XM-32 boxcars in 1940. Within that batch, the first 50 were intended for head-end baggage, mail and express service. These cars, numbers 30000-30049, were consequently equipped with steam and air signal lines. And, to match their heavyweight companions, were painted Pullman green in contrast to the standard freight mineral red. Although they were seldomly assigned, they served the Q’ throughout the 40’s and 50’s and all the way to the late E7 years.

I strived to model this Burlington oddity using a standard O scale Protocraft 1937 AAR boxcar. Detailing-wise, some work had to be done. I swapped the Bettendorf trucks with a pair of PSC allied full cushion ones. To do this, I tapped the car bolster with a size M3 x 0.5 tap drill. I also removed the outer brake shoes and modified the end cross bars to get rid of the conspicuous screws. Other additions include: a PSC steam signal line running along the frame of the car, ownership plates on either sides of the car and correct stepladders. For painting and lettering, I used Revell enamels and Microscale-printed, Protocraft decals.

 

I’m pleased to have completed this special project. This unusual critter is a welcome addition to my Exposition Flyer head-end equipment.

Hope you enjoyed Santiago’s story about the XM-32.

Gene