If people is a bit skeptical to the claim that I have been able to assemble something that actually runs, I now can offer some proof.
Here is a short video of the engine in action (click on the picture):
The strange whisteling sound has thankfully disappeared after some more breaking in.
A small step for the hobby, a great step for this hobbyist!
A Proxxon 230D lathe is one of the recent additions to my workshop. It is so small that most engineers will consider it a toy.
There has at least been some progress since the “Paralysis by analysis” post.
The engine is now actually in running condition!
A great milepost for the project.
Those raw brass parts in the PBA post looked quite difficult to get together, but in the end I was able to assemble them into a functioning mechanism. As a self-trained model engineer I had to go real slowly. But even then I was not able to achieve standards anywhere close to professional engineers. But the rubber band drive is quite a good idea for amateurs. In theory, this is a very crude concept. But it is very forgiving to engineering sloppiness, so I think the engine runs far better than it would have done with a gear tower transmission.
