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I am really impressed by the fifth engine shown in Florian's post. http://www.homemodelenginemachinist.com/index.php?topic=1877.msg14975#msg14975

Does anyone have some rules of thumb, or better yet, mathematical equations covering gamma-type Stirling engines? I want to make one from junk around the house, but I don't want to guess at it. My specific questions are about the volume of the power cylinder (would I just use the ideal gas law...

I stumbled across this website yesterday... The workshop tips page is pretty good - I especially like the idea to put a magnet in a plastic bag and put it under the piece of cast iron you are machining to collect the dust...

Ok - I'm working on my first engine. I wanted something that I could build out of the materials and tools I have on hand. I decided on a 'steam' engine... I know; the drawing ain't pretty - but neither will the engine! (I've got an old piece of carbon steel that I found that is going to be the...

I check out this site occasionally - If you have a pickup and live near Dallas, you might want to look at this auction. There aren't any bids yet, so it's sitting at $100 (+5% buyers premium). http://cgi.liquidation.com/auction/view?id=1312500&convertTo=USD Ends on the 2nd.

Has anyone purchased the new Craftsman box wrench set that has the box end turned 90°? I was looking at them, and the idea is to put less strain on your hand. Usually, though, when I'm having that much trouble loosening a nut, I'll get a mallet and give the other end a few whacks. With the end...

Has anyone worked with carbon fiber? Is it machinable? I would imagine there could be some unique applications with it. http://www.hobbylinc.com/htm/mid/mid5744.htm

Okay; I want to get into making model engines... but my garage is desperately short on tools. So... I'm getting my Christmas list together. Assuming my wife and parents will only have $500 or so to spend, what would you guys recommend? I'm thinking a good quality drill press, but would...