Wednesday, December 16, 2015

My next project - the ISS!!


O.K., as promised in my first post, I'm starting my new undertaking - a 1/100 scale paper-only build of the International Space Station!

I'll be using excellent plans created by Alfonso Moreno. I will be building the model following the order that the station was assembled in space and I am going to suspend the model from the ceiling of my office.

I will be blogging about each component as I build it.  I've also created a progress display on the outer window of my office to provide an overview of my project, highlight the current segment under construction, and convey overall progress in the assembly sequence, using a nice, informative timeline from the NASA site.

Here's a picture of the progress display at my office.


I'm excited about this endeavour and I hope that you follow along. Stay tuned!

Monogram Heritage Series Saturn V 1/144 Scale Build


As I mentioned in my first blog post, my recent build of the 1/144 scale Monogram Heritage Series Apollo Saturn V is responsible for kindling my interest in paper modeling. This article will hopefully give you some introspect in the process that I followed to build this kit, show you how I integrated the use of paper components in order to enhance the overall model detail, and hopefully teach you a few things about the Saturn V that you didn't know.

I seriously started on this model build in late October, 2014.  At that time three of the four of my children were away at college and my youngest son's high school soccer season had just ended, so, I had a little spare time on my hands to "tinker" with something.

Here's a bit history about this model, the amazing vehicle it represents, and events in my life that help to tell its story. The model itself has been in my possession since the summer of 1992, having been given to my by a co-worker and fellow model enthusiast, Buzz, upon his departure from my company for a new job in San Antonio.  Buzz and I would often visit the local hobby store at lunch to browse the models and Buzz must have noticed my interest in this particular model during one of our visits.

My wife and I purchased our first house that same summer, and Buzz's gift was shelved so that I could focus on a newly-acquired "honey do" list of household tasks. I tinkered with the kit a little on-off over the next 8 years, with activity limited to separating and dry fitting some of the cylindrical and other large parts along with removing excess plastic from various areas of the F1 and J2 engine bell parts using a needle file. During that time, we had four kids and moved to a larger house to accommodate our growing family.  The model was "allowed" to make the move to the new abode and ended up residing on the floor of our kitchen pantry closet, where it sat untouched until last October.

During the early to mid 1990's my company was involved with development of flight and mission planning software applications for the space station and I frequently visited the Houston area for meetings. I would often visit the Johnson Space Center and the famous Outpost astronaut bar and hang-out during my trips.  I also was able to see mission control, early station mock-ups, moon rock collections, the neutral buoyancy lab, and, of course a display of the Saturn V that at the time was located outdoors at the space center.  The display has since been enclosed within walled facility to harbor it from the elements after a two year restoration project concluding in 2007.

If you've never seen the Saturn V in person, then I highly recommend that you swing by and take a look at one the next time that you're near Cape Canaveral, FL, Huntsville, AL, or Clear Lake, TX.  The vehicle is a true engineering marvel, rising over 360 feet and weighing more than 6.5 million pounds when it was fully stacked and loaded with fuel and the Apollo payload on the launch pad.  The vehicle could place up to 260,000 pounds of payload into low Earth orbit. To date, the Saturn V remains as the only launch vehicle that has been built to take humans beyond low Earth orbit.

O.K., so enough background.  Let's talk about the build.

I started my work with the F1 engines located on the aft section of stage 1 (a.k.a., S-IC) .  These components consisted of 2-part halves for each engine.  The casts for these parts were clean and provided good detail on the exterior nozzle extension, turbine exhaust manifold and heat exchanger components.  A bit of excess plastic mold was present between the heat exchanger and the thrust chamber.  This was probably done intentionally by Monogram in order to reinforce the part to avoid having the heat exchanger break off accidentally.  I chose to remove this excess plastic in order to increase detail and realism.  Most of the removal work was performed in the 1990's period.  I completed the removal and smoothed over the cutout areas as part of the re-start effort.

The resulting F1 parts looked great when dry fitted.  However, I was disappointed by lack of detail provided by the kit in the upper bell and interior nozzle areas, so I started looking for ideas about how to enhance these components to add detail.  At first, I attempted to fabricate various missing valve assemblies using bent solid gauge insulated wire.  Test fits of the assemblies looked OK, but still weren't detailed enough for my liking. Repeated searches related to F1 engine models let me to a page on the Lower Hudson Valley Paper Model E-Gift Shop site of a spectacular 1/48 model of the F1 engine created by Greelt Peterusma, along with some enhancement modifications to the model provided by Jasper (last name unknown). I decided to use parts from both of these kits to enhance my engines, adjusting the scale to 1/144, which resulted in the following outcome.


Next, following the traditional plastic modeling approach, I assembled all of the stage "tube" components and applied 2-3 even coats of Testors flat white (aerosol application) to all parts.  I am always amazed at how much better and realistic a model looks when it's painted, even at this stage in the process.

The Monogram rendition of the aft portion of stage 2 (a.k. a, S-II) is downright sad.  The engine array and heat shield remind me of a tupperware serving tray! I don't understand how this one portion of the model could be so off-base in following the overall Saturn V design on comparison to the rest of the model.




I knew that I had to replace this part of the model, or the overall level of realism that I wanted to convey for this build would not be met. Greelt saved the day again, providing an amazing build for the J2 engines for this stage that happened to also be listed on the Lower Hudson Valley site. Scaling the plans down to 1/144, I was able to build 5 of these engines. Meticulous effort, often using a magnifying glass, was required to assemble the smaller parts on these engines. I used craft beads for the helium starter tanks. I was elated with the result and knew that I was on the right track to build a model with the detail that I desired.



Removal of the stock Monogram design also required me to fabricate a S-II thrust structure for this section.   I went searching again for ideas and stumbled upon a paper model of S-II developed by Frederic Bouchar that provided realistic thrust structure design which I could use in my refit.  I ended up replacing the model's cruciform engine mount with a from-scratch version that I made using balsa to provide better strength and a more realistic look.  I studied some awesome photos from Mark Rasmussen's Saturn V styrene scratch-build site to add additional detail to the stage using paper, balsa, fine wire, and bamboo, which resulted in a rendition of the S-II aft section that I'm very pleased with!



The forward portion of the stock S-II model had characteristics that I also observed during my examination of Saturn V photos from Kennedy Space Cener (KSC)  and wanted to eliminate.  The forward section of the model is equipped with what I found in my research to be the ground support equipment (GSE). According to information that I found at heroicrelics.org, the S-II forward section GSE provided in the Monogram kit is comprised of the stage erecting sling, forward hoisting frame, and forward support ring, which allowed the S-II to be moved from a horizontal transport orientation to a vertical stacking position upon arrival at KSC.  The GSE was removed from the forward area of the S-II after it was stacked, exposing the forward bulkhead that covers the LOX tank. The stock part was accurate in the real world Saturn V for the purpose of S-II transport and stacking, however I wanted to depict my Saturn V build in a flight configuration.   I needed to fabricate the forward bulkhead, as removal of the GSE would expose a void in the top area of the S-II.

The Lower Hudson Valley site came to the rescue again, providing me with a link to a paper rendition of the S-II bulkhead as part of a complete 1/48 scale paper version of the Saturn V. This particular model is an 8 foot giant, comprised of sections created by Greelt and others, and assembled into a single set of plans by Jean-Paul (last name unknown). I'm saving this one for a future paper-only Saturn V build. Here's a photo of the S-II forward bulkhead that I built, using a scaled down version of the Jean-Paul plans.


By this point in the build I was more confident than ever in my accomplishments with adding detail, which encouraged me to continue adding detail wherever I could.  I moved on to stage 3 (a.k.a S-IV). This part of the model is fairly detailed as-is and, unlike the S-II engines, the J2 engine provided for this stage was quite detailed, so I decided to use it. I saw opportunity to enhance the aft section of this stage to match details that I studied from various photos taken of the KSC, Marshall Space Center (MSFC), and Johnson Space Center (JSC) Saturn V displays. I embellished the stock engine with a helium starter tank as I had done on the S-II engines that I fabricated. I also added helium pressure spheres on the thrust structure using glass beads.  I also included control cabling and harnesses, the LH2 feed line to the J2 engine, the O2/H2 burner, and repressurization tubing.  I referred to excellent documentation regarding the makeup of the S-IV repressurization system on heriocrelics.org,  This site was invaluable in assisting me in my detailing efforts and it also educated me in the amazing engineering behind this stage. The S-IV was designed for engine re-start capability that was necessary for the crucial trans-lunar injection (TLI) burn that sent the astronauts and their Apollo payload toward the moon.  


Moving on up the Saturn V stack, I next tackled work on the lunar excursion module (LEM).  The Monogram instructions for detailing the LEM were minimal, consisting of a few simple decals to vaguely identify a silhouette for the the iconic, quirky-looking ascent stage, along with similar decals to provide outline for the boxy decent stage, The example shown on the packaging was pathetic, and I knew, even with the small scale that I was dealing with, that I could add detail to make this component look much more realistic. 

I had just come back from a business trip in mid-January before tackling this part of the build.  During my trip, a co-worker, Bill, showed me some photos of a 1/48 scale paper build of the Apollo 13 LEM, Aquarious, that he had seen on one of his daily news feeds.   I was able to track down the source of the model to an outstanding Japanese modeler known as uhu02 and I was astounded as to the intricacy and detail that was created using just paper! This is the best paper model that I've run across so far, hands down! The model, like all others on uhu02's site, is fully detailed, inclusive of features under the outer LEM skin, depicting various tanks, components, structural skeleton and the interior crew area, wow!

Suddenly, I had an idea as I gazed at uhu02's masterpiece. Why not try and use the exterior panels from uhu02's design to cover my LEM components?  Great idea!  I proceeded to scale applicable pages from the uhu02 design down in order to fit my LEM.  Amazingly, I was able to find the right reduction percentage that fit after only a couple of tries.  I ended up printing the parts on regular paper instead of card stock so that I could obtain a skin-tight fit.  I applied a thin film of glue and carefully affixed the paper to the plastic, taking special care to follow the various contours on the LEM ascent stage.  The result effect was very decoupage-like.  I could not tell that the paper had been applied, rather it looked like the form had been directly painted on by hand! 


Encouraged by the result, I decided to forge ahead and follow the same technique on the descent stage using the same scaling factor. Again, I ended up with amazing results and gained detail provided by uhu02's implementation of the scientific experiments cargo bay, s-band antenna. RCS deflectors, and egress platform.  I augmented the micrometeorite foil blanket coverage on the top and bottom areas of the descent stage and landing legs with gold foil from a Rollo candy wrapper and thin aluminum foil. I added the steerable s-band antenna and VHF antennas using the uhu02 plans.  The result was awesome!




I then moved my work efforts to the command and service module.  The Monogram instructions prescribed painting the command module  and targeted areas of the service module with silver paint as the sole detail instruction. I wanted to implement much more with this portion of the model and I also wanted to allow the components to be displayed in either a connected or separated orientation.

I glued magnets to the inside of the command module heat shield and inside of the top portion of the service module to allow both parts to be easily connected or disconnected by magnetic force.

After reviewing dozens of photos and diagrams, I covered the command module with a thin layer of aluminum foil to attain the "shiny" aluminum appearance familiar in many photos.  I roughed up the heat shield using fine sandpaper and painted the heat shield using a copper-colored sharpie to produce a dull copper-colored look. I  fabricated a docking adapter and affixed it to the top of the command module and blacked in the port holes to help visually distinguish them. I scaled down service module plans from the 1/48 scale  Lower Hudson Valley site's Saturn V model and affixed radiator panels, scimitar antennas, the command module flyaway umbilical, and high-gain s-band antenna. Again, great detail results!


I chose not to apply any paint to the boost protective cover (BPC) or launch escape tower assembly. All of the photos that I previewed of these components depict them as having a glossy finish, so I decided to leave the bare white plastic here to achieve the desired effect.  I drilled a small circular hole at the center hatch port hole position on the BPC to match actual design, and I notched the opposite side of the BCP to accommodate presence of the flyaway umbilical connection between the command and service modules.

At this point, I moved back to the S-1C thrust structure, adding air scoops to the inside edges of the four outboard engine fairings and support stringers.  I affixed the F1 engines to the thrust structure base to complete the assembly in this area.


All that was left was to apply the iconic roll pattern, sway targets, first motion targets, and insignia decals.  I was nervous about applying the roll pattern, as any slight error in applying the black pattern would be starkly apparent against the white base.  The roll patterns cover areas on the model that have vertical corrugation patterns which further complicates a clean application, especially if using paint.

I decided to apply the roll patterns using a black sharpie.  Using a pen as opposed to brush or aerosol paint application gave me a much finer level of control.  I used painter's masking tape where possible to mark vertical and horizontal lines of demarcation and keep my patterns clean, and straight.  I made a few mistakes, but I found that, unlike paint, I could easily scrape the sharpie color off to correct my errors, as long as it was done soon after the mistake was made.

Sway targets located on the S-IV reduction cone were applied following awesome marking diagrams that I found on apollosaturn.com.  I also referenced this web site to verify placement of kit-provided decals and first motion targets on the S-IC and S-II stages.

My final task was to build a base for horizontal display of all stages, akin to the orientation of the actual Saturn V displays at KFC, MSFC, and JSC.  My father-in-law provided me with a beautiful 3.5' X 6" plank of ponderosa pine with a nice semi-gloss polyurethane finish for mounting the model. I wanted to elevate each stage on the base, allowing for space between each stage to provide visual access to inter-stage details.  I also wanted to preserve the relative stage heights and alignments, while also preserving the narrowing taper of the model as you progress up the stack. I ended up using formed sections of a rubber-coated wire to build platform stands for the S-IC, S-II, and S-IV stages.  The flexible wire allowed me to tweak each stand in order to achieve optimal shape and position for each stage so that I could achieve the orientation that I desired.  Here's some views of the finished product. I am so proud of it and I hope that you've enjoyed the story of how I created it!

  

Saturday, December 12, 2015

What's This All About?

I'm a modeler, and I'd like to share my interest and experiences with others who are interested in modeling, particularly with paper models.

I've always enjoyed creating models.  There's just something that hooked me in at an early age about model building and making a creation look as realistic as possible. I enjoy building a model and then displaying it for others to look at and ask me about how I built it and applied the details to make it look so real.

I've created all sorts of models since an early age, from store-bought kits to from-scratch creations/contraptions that I would dream up.  I've built all different sorts of models over the years - cars, trucks, trains, aircraft, spacecraft, dioramas.  I even built a drum set from my mom's kitchen pots and pans to give me an outlet for one of my other passions, percussion music. No, I'm NOT a drummer, rather a percussionist. There is a difference. I'll save the details for another blog down the road.

I think that my modeling interest led me to my current profession in software development.  Creating a software application is just another type of model building effort, albeit the pieces and parts are electronic rather than physical.

As my blog tagline mentions, I'm a father of four wonderful kids who were all born within a three and a half year period. Needless to say, spare time for model building has taken a second seat to child rearing and all of the parental involvement in kid activities until recently, when I picked up and completed a 1/144 Monogram Heritage Series Apollo Saturn V model that had been given to me by a co-worker back in 1992.  It's a small miracle that this model didn't end up in the trash, as my wife has tried to convince me to throw it away many times over the years. I'm going to provide an overview of the Saturn V build and details of my paper modeling discoveries in an upcoming post.

But the blog title refers to paper, right?  What's that all about and how did I become exposed to it?  Well, my recent build of the Saturn V led me to the world of paper modeling and the amazing level of detail that can be achieved solely with the paper medium. The Saturn V kit is plastic.  A number of areas lacking in attention to detail on that model's stage two thrust structure led me down the path to looking for ways to achieve the detail that I desired  (have I already mentioned that I've been routinely accused of being a perfectionist?). My many searches for photos, etc. directed me to a number of paper modeling sites, where my eyes were opened to what can be done using paper, a good printer, an exact-o knife, and some Aleene's tacky glue.

I had built some paper models much earlier in life.  My earliest memories with paper modeling involve building different structures from the Fun Village collection that were printed on Burger Chef kids meal boxes.  I recall being intrigued at that age that a model could be made from paper. Like other kids, I also learned the fine art of paper airplane "modeling" and even received an origami-like paper airplane model kit for Christmas, which I enjoyed tinkering with.

The models that I discovered on my search to improve the Saturn V were amazing! I couldn't believe the level of detail and realism of the models that I found.  The other thing that blew my mind was that a large majority of them are free!  It never ceases to amaze me of the generosity of people who want to share their interests with others.  Take a look at uhu02's site to get an idea of what is possible with paper models. This guy is unbelievable! I can't wait to build some of his creations.  I've already used some of his Apollo 13 lunar excursion module (LEM) (Aquarius) plans to create the LEM detail for my Saturn V build.

So, now I'm hooked. Having whetted my appetite building paper-based components for the Saturn V model,  I'm now ready for build of a complex, paper-only model.  Keeping with the space exploration theme, I've decided to build the 1/100 scale version of the International Space Station (ISS), using the excellent plans created by Alfonso Moreno. I will be building the model in the order that the station was assembled in space and I am going to suspend the model from the ceiling of my office. Stay tuned for future articles, as I capture my progress in what I am sure will be a long, complex, and rewarding effort!