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OK I admit so far my efforts to engineer a Stirling engines that actually runs reliably have so far amounted to zero. But this short clip give me hope - and any way I kind of like the Rube Goldberg way it works. http://www.youtube.com/watch?v=IPHFwrNKMgY

Just had to share this. http://www.youtube.com/watch?v=Y5pen3QMgzQ

http://blog.makezine.com/ The title says it all. :)

This is an interesting hybrid of IC and steam engine http://www.damninteresting.com/the-six-stroke-engine giving a six stroke engine - 4 IC and 2 steam. AND it appears to work as well. :)

I know that realistically speaking the speed of steam engines tends to be on the low side and if you want real speed you turn to a turbine but what actually sets the top speed? Pressure? Cylinder dimensions? Weight of parts? Throw? Type of engine? No marks for anyone who answers yes all of...

OK I own up this isn't my idea but seem so logical - and the author - long dead i guess says it works. I have been reading my fathers collection of 200+ model engineer magazines going back to the 30's and came across this tip for using small diameter drills. To prevent the drill bending under...

Lots of information & pictures here http://www.buildyouridea.com/foundry/lost_foam_howto/lost_foam_howto.html

:) :) :) :) Retired AT LAST!!!!!

I need to drill 2 x 4 mm holes accurately in a 6mm dia thin walled brass tube. I am having some difficulty as despite centre punching the marks the drill tends to wonder. Is this because of the thin wall of the tube - unfortunately the holes need to be dead on to fit the already assembled...

This chap - Roy Shepard from the UK goes against the general thoughts: Stirlings are hard to get going, they need precision and high quality bearings etc. He had made at least 3 from just household junk - and they work. he also makes steam engines - examples on his web site...

I have been unable to find a definitive answer to this. Why are there fine and coarse metric threads and where does fine stop and coarse start?

I woke this morning with a nagging thought I can’t get out of my head. I am sure this is a silly idea but can’t see why. From what I read most people in this business don’t use live steam – for some good reasons – most are using compressed air. Compressors are noisy and not very house friendly...

This is something I have a lot of trouble with getting the kids at school to grasp (either QA or QC). My usual definition is: Quality control = measuring something. The most common situation is marking out your part and then double checking the measurements. What my Father used to call measure...

I haven't, as yet, tried this but don't see any problems - I guess in the absence of a compressor You could just as easily run your small engines on the vacuum from your ever hands shop vac. Applying a vacuum should have the same effect as applying presure - No?

Cooliris is a superb way to access pictures could the mods/Rick enable the site - it would be a good way to view the "competition" :) cooliris.com

Examples of the electric racing cars the kids engineer <embed src="http://www.youtube.com/v/Hbposcv5w18" type="application/x-shockwave-flash" width="425" height="350"</embed>

I have been gifted a "collection" of lathe tools by a now retired machinist. Most are standard HSS tools although many have some strange shapes ground into them to suit particular jobs he was doing. They had a tool maker on site although some tools got "altered" to suite the job. I have a...

OK I admit - I didn't know what this tool was either - But for anyone looking to measure or set up angles to great accuracy this is a simple tool that could be made in the home workshop. This presentation tells you how to use it. http://www.wisc-online.com/objects/index_tj.asp?objID=MSR2202

Although I have been here off and on for a few months I never bother to say Hi. I should remedy that. I am a Technology teacher in Lincolnshire UK. Initially I used Bogstandards PDF twin open column as a basis for a 3D CAD exercise at school and thought others might have a use for the CAD files...

I am fortunate to have access to a CNC Mill and Lathe as well as Routers and a laser cutter at School. BUT apart from the ability to produce many identical items from the CNC system - The speed of the laser cutter to cut wood/plastics I generally find that for one off items it is faster and...