We had a good old blow this evening, which made cycling across the Lions Gate Bridge very interesting indeed and also knocked the power out. My Christmas project, which is consuming most of my spare time these days and seriously hampering progress on the layout, requires a computer and Internet. So, I took some time to think about the next big project.
The next big project is, of course, a second and third locomotive. I need two more engines to run the full schedule for Pembroke, and I’m hoping to start on them in mid-2016 so that they can be operating before VanRail 2017.
Because I want to build two engines, the next models are going to be a bit like kits, and will make use of etching, laser cutting, 3D printing and casting to accelerate the process. These processes raise opportunities that were not there when I was building #10. So, I spent the evening thinking about how to improve on some of the mechanical aspects of my first foray into steam engine building.
It starts with the frame. On #10, i equalized the drivers inside the firebox. The beams and fulcrums took up space that would have been better filled with lead. So this time I will attempt to push the equalizing beams outside the firebox and into rebates in the bar frames. The pages of my notebook illustrate the idea (note the photos were taken by candlelight, hence the weird shadows).