It has been quite some time (March!) since I posted. I have not been idle but work on Comstock Road has been minimal although I have enjoyed a few impromptu operating sessions which have gone surprisingly smoothly given the general lack of activity.
I recently reached a point in my machining journey where I felt it was time to make something that wasn’t a tool for making things. I hit upon a site containing many plans for model stationary steam engines created by the late Elmer Verburg. These plans can be built from standard metal shapes without the need for castings which makes them ideal for beginners who may need multiple attempts to make a part(ahem).
I have begun the process of creating a horizontal beam engine aka Elmer’s Engine #24. I have three parts made with the second and third requiring two attempts each due to measuring errors caused by duffing fractions to decimal conversions. I need a wall chart.
Anyway, here is the project to date with the base and flywheel bearing assembled. Eccentric hub not show as it is currently clamped in a vise awaiting drilling and tapping for a set screw.
All of those holes will eventually get something in them. It is an interesting contrast to the usual railroad model build in that each part is a project in itself requiring planning, setup and machining. It has also been a good skill bilding exercise as I have had to execute a variety of new operations.
Next part will be the flywheel, I think. This will be all kinds of new challenges as I deploy my shiny new rotary table for the first time. Adding a fourth axis to my mill means more thinking and care are required. I have laid in lots of extra stock for the likely multiple attempts. 🙂