April 2020: Winter/Spring Layout and Modeling Update, PART 1

I figured it’s been a long time since an update on my layout & modeling progress, so here goes, in two parts. Like so many right now, I have been productive with my hobbies. I’ve chosen to spend time in the basement getting back into the layout construction and finishing up some old projects. It’s been a lot of fun, and hard work. Here’s a [long] report of what I’ve been up to:

Rock Creek Trestle

I got the plans to place I was satisfied with and decided to start doing some work. *A quick note about this – I ended up spending another few days modifying the plans because I wasn’t pleased with them. More on this later!

I trimmed the mockup to the hill contours and pinned it to the roadbed to give a better idea of the scale of the trestle.

I ordered the lumber a few months back from Mt. Albert Scale Lumber (FastTracks) and Northeastern Scale Lumber and decided to laser cut some jigs for the bridge ties. I even picked up some tie plates, spikes and joint bars from the folks at Proto:87, which I will use to detail the bridge track.

The two laser-cut jigs for the bridge ties, rail and stringers.

The B&O ties are a bit shorter than any commercially available ties out there, so I had to shorten them just a bit.

Testing some cuts and fitting in the jig.

Next up was the stain. I did some testing with about 5-6 different Hunterline Weathering Mix stains and eventually settled on Tie Brown with a bit of Driftwood mixed in.

Staining the ties with the Tie Brown color. I opted to paint these individually instead of dipping them.

Fast forward a couple months and I’m picking back up where I left off with this project. I was doing a mental and physical inventory of the trestle project to get back on track. As I started to go through my notes and compare them with what lumber I purchased last Winter, I realized I screwed up. I missed a few things in my order. Oops! A quick trip to FastTracks’ website and the order was in.

Laying out plans, drawings and materials. Wood to the left, plans and jigs in the middle and blueprints on the right.

So now that I am waiting for that material to show up, let’s get busy staining the wood we DO have! But how do you stain 2′ long x 1/8″ pieces of wood? I had to figure out a solution, so I designed a trough out of foil, but that failed catastrophically. (Cleaning up stain is NO FUN.) I cut a rigid paper tube in half, lined it with foil and used some old clay to create ends that are adjustable. I then laid a sheet of plastic wrap in and held it in place with clay blobs. The whole thing was rubber-banded to a piece of wood to keep it steady. This gave me a nice place to hold the stain while I dipped wood in and set to dry on drying racks I made from old Snap-Track. In the future, I may try to get some Flex Seal to spray on the tin foil and make it a bit more robust, as I worried the tweezers or the wood itself could poke a hole in the saran wrap and cause a leak.

My staining setup. The stained pieces were put on racks made from old Snap-Track. I would place a piece into the stain, let it sit, put another piece in, pull the first one out and lay it down to dry.

Here are all of the 1/8″ dowels which will make up the pilings of the trestle.

Tichy makes a 40′ plate girder bridge flatcar kit load, that is a very close approximation of the same sort of bridge span across Rock Creek. The major difference is that this one is 1’6″ taller than the B&O prototype.

A VERY nice kit! The details are very crisp. Assembly not to bad when I took my time. I had to re-read a few of the steps to really wrap my head around what the directions were saying, but it went together quickly. I used Tamiya Extra Fine cement.

With a 50′ box car atop, for perspective.

Story time. I spent a good while putting this post together, and when I got to this point, I stopped and realized there was a problem. I sat looking at the open deck girder bridge model and realized it looked a bit tall to me. I quickly opened up my drawings and reference materials and looked a the B&O plans. They clearly indicate that the trestle is to be 40′ long, 6′ 6″ wide (girder to girder) and 4′ 6″ high. This Tichy kit is 6′ tall. I then went down the rabbit hole for several hours while I tried to figure out what to do.

I opened up the plans I had drawn and started to modify the sections where this 6′ tall center span would sit. I had to lower the bents and adjust all the cross bracing in those areas. I did not like it. Some of it looked a bit odd and threw the whole thing off. I was not happy. I decided to keep digging.

Months ago, when searching for a deck girder bridge for my model, I had a very hard time finding a nice 40′ long kit in HO scale. The Tichy kit really fit the bill, but I didn’t pay close attention to the height of the girders. Micro Engineering makes a 30′, and a 50′ bridge, but not a 40′ one. The 50′ bridge is just over 6 scale feet tall. Just like the 40′ Tichy model I already have. The 30′ bridge, albeit too short, is a scale 4′ tall. I have decided that this will be my way forward. I feel that a scale 6″ is easier to forgive and blend versus a scale 1’6″ which is quite a bit more and really changes the characteristics of an iconic part of the structure. Now, some will say “there are only a small handful of people in the world who will know the difference. Who cares!?” Well, being that I’m making this model for me, and I care, I am going to spend the time to do the best job I can. I’m already knee deep!

So I then set out to RE-adjust the plans for the trestle, now with this 4′ high girder. I will have to kitbash two kits into a 40′ span, but that shouldn’t be too difficult. I’m going to add slightly taller blocks under the bridge to add to the height just a couple more inches, to hide the disparity between the prototype and my model. In the end, we’re talking a few inches difference. As I went through the plans, I realized some other errors I had made, and I cleaned them all up. I also reformatted the plans to fit on 8.5×11 paper, so I can print at home, since I think I will be in it for the long haul. I will share my progress on the plans soon in a future post.

So, phew! This was a doozy. In a long period of time, not a lot has happened, but such is my life. I have been busy with other projects… *ahem*