Member postings for lyric

Myfordboy has a good idea on his YouTube channel under the heading "No more broken taps.

Reference Barumman, I am not Terry Ratcliffe neither am I associated with him in any way , it would seem that he is using the same user name as myself on his Twitter account. Cyril Dennis, Barumman.

Sorry Ron, No website, I have sent you a private message, Cyril

Hi Ron,

Are you aware of the North Devon Society of Model Engineers ?

Feel free to contact us, our email address is [email protected]

Cyril

I'm afraid there were no calculations just trial and error, a lot of them

The thickness of the springs is .028 inch

Info on machining planar springs now on. http://youtu.be/kCCcpBtGLAc

Cyril

Hi Folks, This is the method I used to form the Diaphragm for my TMG.

I hope I have added the link correctly. Cyril

http://www.youtube.com/watch?v=o5rsbgDv6OA&feature=email

.

With all due respect what's this got to do with Stirling Engines. ???

Hi Richard,

Why didn't I think of that ? I look forward to seeing the end result.

Cyril ( Barumman)

Hi Ian,

The spring was made from a new saw with hard teeth it is .028" thick

I have just made another one and have taken photos of the various set ups which will go on Youtube

in the near future. Cyril

Hi Engine Builder,

Yes those are my TMG,s on Youtube, As far as I know they are the first ones to appear there.

For others reading this thread I shall shortly be showing how I formed the Diaphragms.

My wife would gladly throw them in the fire as it has delayed the decorating.

Hi Stub Mandrel,

In the 1994 competition my 10cc Rhombic Drive engine achieved 11.8 watts

write up was in ME Vol 172 no 3964 . this is not the one on Youtube.

Best wishes, Cyril

Hi Richard,

There is no noise coming from the generator it all comes from the diaphragm which acts as a loudspeaker.

If you look at my Youtube channel you will see that I have made two TMG's one using a moving coil generator which is also very noisey with the other using a moving magnet set up.

The diaphragm do's not touch any parts of the engine I went to great lengths to ensure clearance together with minimum dead space.

The material used is Berylium Copper which is very good for the job but difficult to form due to it's springiness, I found Stainless steel to be not stiff enough and Phosphor Bronze failed due to fatigue after about ten hours running.

The first springs I used were Hacksaw blades they lasted about five mins.

I hope this info wil be of help. Cyril