I've had my mini lathe for about 15 or 16 years but it wasn't until recently that I finally got a mill. As such, this is intended to be a "getting to know you" project for the mill. The lathe also has received numerous upgrades over the past year so it was high time to test it out. Also, I wanted to become more familiar with the basics of locomotive scratch building. Though there are plenty of locomotive plans out there that are built around oscillating cylinder engines, this is not what I wanted to do. My own view is that the scope of work concerning oscillating engines is very limited and does not lend itself to any higher knowledge of how other, more prototypical styles of locomotive engines work, namely slide valve and piston valve types. I started doing as much research as I could on the subject while simultaneously searching for a set of plans. Something serious but manageable for a beginner to locomotive building.
The design I am building is ostensibly a Dacre, a project locomotive originally proposed by Peter Jones. Though I was unable to find original Peter Jones plans, I've gathered that the initial design was less of a scratch build than an exercise in assembly and integration using as many off the shelf parts as possible, mostly Roundhouse. My own build is based on the work of Erik-Jan Stroetinga whose AutoCAD drawing I found here (http://www.john-tom.com/html/SteamPlans3.html
). All that is required to open the file is a DWG viewing program, which are available free online. That said, in order to better understand the locomotive and to document the changes I wanted to make, I decided to produce my own set of plans which I will share freely when they are more ready.
I will be showing the build from the beginning, with as much detail as is appropriate. The first parts will show everything in excruciating detail but towards the end I will be skipping over steps that are easily assumed. This first post however, is towards the end of the chassis build. Enjoy!