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Hi, looking really good! Just make sure to keep the graphite piston dry and free of grease. Where exactly is the water-cooling jacket? Are you sure you are not also cooling the power piston/cylinder? Have fun, Fred

Hi, shellac(k) works well for large brass surfaces. Example: (Unfinished) LTD Stirling test run (the engine sits on top of a container with warm water; shame on me: I do not have any pictures of the model after finishing): Regards, Fred

Hi Tony, neither on my lathe nor on my mill, but I did take the above picture by simply holding my digicam close to one of the oculars of my stereo microscope (10x mag, wide field, incident illumination system). The picture was subsequently cropped to get rid of the black circle surrounding the...

Hello everyone and thanks for the warm welcome. So you are asking for pictures.... well, here you are: (Administrators -- please let me know if this picture [600x403 pixels] is considered too large for this forum.) I used Prof. Senft's plans only as a rough outline for my own version and did...

Hi, when I briefly introduced myself in my first post, I had not discovered this "hello" section. I live in Germany, about 1 1/2 hrs from Berlin, and have been building small Stirling and steam engines (most of them running on compressed air) since 2004. As I had no previous metalworking...

Hello Phil, in a display model which is run only occasionally, you will most likely get away with pairing brass with brass for a sliding valve. Unless you are planning to run the engine on steam for extended periods of time, brass/brass should be fine, particularly when lubricated. As far as...

Although I have not built this engine myself, I'd suggest you have a look at http://start-model-engineering.co.uk/elmers-wobbler/elmers-wobbler-25/ and at the second tif file in the following collection: http://www.davehylands.com/Misc/Elmers-Engines/25_wobbler.zip The respective detail does not...

Flex is one of the issues I encounter with my tiny mill. I have not acted upon it, but it is bothersome enough and I am thinking along the following lines: 1. Filling the (hollow) column with epoxy-granite as suggested above 2. Replacing the column by a solid one 3. Using a counterweight for the...

Hi, the following French site offers several plans: http://membres.lycos.fr/vapeurlanguedoc/plans.htm Warm regards, Fred BTW: This is my first post here. Short intro: I am a Stirling and steam enthusiast from Germany primarily interested in tiny engines and unusual Stirling motors.