I purchased a 3-pack of these Bosch T113A3 4″ T-shank jigsaw blades to make a go at cutting some 1/2″ Homasote that I will be using as subroadbed on the layout. My intent was to avoid the legendarily bad dust that is created using conventional wood-cutting, teethed blades. I have seen these type of blades around but never given one a shot.
My initial impression was that the blade appears to be sharp and is wedge-shaped. It loaded easily in my DeWalt jigsaw and operated well. The initial cut into the Homasote was smooth and steady, to be expected and at first it seemed that it would work well. There was little dust. However, there was another problem. Smoke. Yep, after about 3-4″ the material started smoking heavily. I removed the blade from the material and the blade itself had burn marks on it. I switched to a regular wood-cutting blade and went back to cutting and it all worked out fine.
TL:DR: Knife-edge jigsaw blades are inappropriate for cutting Homasote. Stick with wood-cutting blades outside, with plenty of ventilation and preferably with a breeze to blow the dust away. Wear a mask!
One of the signature items I have planned for my Georgetown Branch layout are the three bridges spanning the C&O Canal & Canal Rd. These bridges were cobbled together from other parts of the B&O system when the line was laid down in 1908-10. I have thought about options for modeling these bridges and I am leaning toward a mixture of brass, styrene and museum board (or mat board) that is laser cut. I obtained a copy of the blueprints of the bridges but they are many generations of photocopies old and need lots of cleaning up. I figured redrawing them in Illustrator is a good starting point so I had some fun with the first (easiest) bridge of the three, a simple 30′ deck girder span.
The biggest challenge is alignment of the drawing with the precise nature of the software. I know I’m not going to get this exact, and that’s OK. What I’m aiming for is something scale and relatively accurate that I can work with once I finally do start to build the model itself. Getting started is sometimes the hardest part and I’m hoping this will be the motivation I need to get things rolling.
This is a “sneak peak.” I still have the top view to do and a few details. Also, the rivets are approximated using photos; today I counted myself among the rivet counters of the world for the first time. 🙂 I hope you enjoy the preview and I hope I can keep up the momentum to produce more illustrations as time permits.
My friend Kelly is moving along on his Georgetown Branch layout, making great strides and some impressive progress! My model RR club, RMRRS, visited his layout a couple months ago and were really impressed. He has since completed the “paving” in Georgetown and reworked and scenicked the Georgetown Jct. area. Very cool!
It has been a very, very long time since I posted an update here on the blog about my model RR progress. Let me get things up to speed. The benchwork for the layout is about 95% complete. I have a few odds and ends to do but that hurdle has been crossed. Now I am working on adding the subroadbed, roadbed and connecting bridges and track. I completed construction on the helix and recently constructed the upper bracket and transition to allow the track to transition off the helix and enter the layout room. Remember, my helix is mobile and must be able to detach and roll away from the wall whenever the HVAC is serviced (like today!)
The staging yard was completed and track laid. I also built and installed a hinged swing-up bridge (with neodymium magnets to hold it in the up position) that connects the staging yard and the staging lead going into the layout room. With some assistance from my train club several areas were completed, including the base for Rock Creek, and the lower helix lead entry point through the wall. One member, Tom, came over and helped me figure out how to do the entire Georgetown Jct. area, including the subroadbed and track arrangement. I realized I needed to put in the upper helix lead first, so that is what I am working on currently.
All in all, I have not been terribly busy with the layout. There are many distractions and I have many hobbies so I come back to it when I can. Also, I have spent a good bit of time researching the GB and have many, many materials to go through and add to the catalogs and notes and that takes time, too. I’m having a heck of a lot of fun with it.
I’ve found quite a lot of GB photos, maps and documents over the years and I share most of what I find in my Gallery. (only if I have permission, of course) These files are exciting to anyone like me who treasures the hard-to-find imagery of the GB and even harder to find documentation. Here are a couple links to some Galleries that have some of my newer finds:
It’s been a while since I’ve made an update here, so I figured I’d check in and let everyone know how things have been moving forward. I’m still collecting information on the Georgetown Branch, via friends, acquaintances and online sources like eBay. I’ve found a handful of great images, some of which I’ve shared in the Gallery and others which I’m trying to find ways to scan (odd-shaped negatives). My real focus over the last several months has been working on the model railroad. Well, the room that will house the model RR and the workshop next to it, actually. Between being laid off in November, saving money, planning, buying materials and having friends and family assist in the actual construction, I’ve made some real progress. The layout room and the workshop are nearly complete. Right now I’m in the process of moving back into the rooms and fitting all my tools, model kids and other junk back into them. My layout room is functioning as staging while I outfit the workshop first. One step at a time.
I’m also working out a whole new track plan. The initial track plan I drew up for this new house incorporated nearly all of the GB elements I wanted to include; Georgetown Jct., Rock Creek trestle, Bethesda, Dalecarlia tunnel and the reservoir facilities, C&O Canal bridges and Georgetown. I’d like to include Chevy Chase, but I have to work hard to fit that in. The current space is slightly larger and allows for me to put the helix outside of the room, giving me a whole new approach to the design. As such, I’m attempting to modify the original plan to fit the new space, and hopefully fit Chevy Chase into the design. We shall see.
I hope you all will stay tuned to my progress. I hope to share some stories here as I move forward. I’ve been inspired by similar blogs and sites that outline layout construction and design and if I can find/make the time, I will. I’ve learned so much through this process. From gutting the room right down to the studs, removing and re-routing all of the electrical lines and designing and building the new room from scratch. Learning to frame, install insulation, drywall and electrical, it’s all been awesome. But now the real fun begins. The layout is about to be started. Thanks!