GreenTwin's latest activity

This is the Stanley design scaled down to give 0.2" steam ports, like on the OP's engine. It should be noted that in order to achieve...

And this diagram from "Verbal Notes" gives a lot of information about events for a steam engine, which are admission, cutoff, release...

This is my analysis of the Stanley. This material will give an actual commercial design to discuss. .

Your valve is designed around asymmetrical ports and bridges. I am not aware of a steam engine that had assymetrical ports. Asymmetrical...

They make some couplings that are used to attach pulleys and flywheels to shafts, and they are slit several times, with an allen screw...

Given that the port locations and sizes are somewhat approximate, I think the best that can be done right now is to make an...

The first plan was to make a wobbler, but then I saw the plans for a finger engine and figured it would be a better first project. The...

Very tricky piece. Turned out great ! .

I did it. After 40+ years as a Tool and Die Maker I wasn't about to let a wimpy piece of metal beat me. Before I went to the trouble and...

If that is the case, then change this dimension. The other dimensions above will still work. .

This is what you are calling "slots", which are actually called "ports". They should be dead ends, unless they are the input from the...

I like your Dad. I had a Dad like that too. I failed to reach the standards my Dad achieved, but that is mostly a skills thing. He did...

That is a bummer. .

These are the port face dimensions that I used. .

It appears that on some (perhaps many) steam engines, the core for the ports were undersized, and the final port dimensions were...