LTD Stirling Engine ---- Quest for simplicity

[@GrandadIsAnOldMan]

One day, I will have a go at making one 😊👍

[@Lidmotor]

Myfordboy has the best DIY videos to work from. They just take a bit of time to build. I don't really like the common 'coke can' types but I might be building a high speed design that I found.

[@j.christie2594]

Big fan of yours, for decade now. Your like a Science Class, every video, which is awesome. I think you should try making your fly wheel, a fan blade to help cool as Stirling runs. See if that helps in, maintaining lower Temperature where it's necessary, for sustaining speed extending run time. I don't know why more ppl are not. OldFordboy, is great builder, nice you give him mention.

[@lunarrn]

Im sure your not the first to wonder the relation between displaced size and piston. I know I’ve been looking for studies on the correlation. Thanks for sharing your research

[@kreynolds1123]

Need to Also consider the crank shaft throw.

[@mikeflight9]

You got it working very well. I like the fact that you have them running at low temperatures. I built one about 10 years ago, my first attempt, but I had to use a tea candle to get it to run. It did work but far too much heat. Your LTD ones are great. Might have a go at one myself. 👌👍💿

[@Lidmotor]

If you can make something that doesn't require an open flame it is better. When wife my says, "what is that burning smell" it usually ends my kitchen countertop project. 😀🥲

[@mikeflight9]

@@Lidmotor 😆👍

[@kreynolds1123]

Reguarding the power piston diameter, the volume of displacement, and the crank shaft throw. I believe the secret is in that you found a good performing volume displacement. The volume displaced is a function of this piston's diameter and this piston's displacement caused by this crank shaft's throw. A smaller diameter power piston will displace the same volume with a longer throw, or a larger diameter power piston will displacement the same volume with a smaller throw. Just a thought: Between the top plate surface area, and the surface area of the walls of a heat conducting power piston, you might try aiming for more surface area on the top plate, and a longer power piston having more surface area on the walls, and the crank throw being sufficient to match th current power piston volume displacement. Or maybe tweak it a little to see if you can get a better performance.

[@Lidmotor]

Thanks for the ideas. There are formulas for this stuff but I prefer to just look at what other people come up with and apply that to what I build. It is kind of a 'monkey see monkey do' approach but I enjoy it.

[@kreynolds1123]

@@Lidmotor I was wondering if I may contact you. I had questions about your lord kelvin replenisher, it's plate's dimensions, and if you got them elseware or just said "I think this looks good. And what you learned or would do different if you were to build it again. I'm in the middle of a build and since you inspired me, I wanted to share it with you.

[@celsoneves2368]

Jewel show

[@dominckrafa2714]

Will this work on ice only?

[@Lidmotor]

No. I'm still working on it. Getting one of these to run on ice alone is hard.

[@garybrown2039]

Hello, I am unsure if you my reply/ commemt on you last video but I have a question about how you wired one of your Newman motors . I attempted to do it the way that you showed in the drawing/video with a breadboard but I believe I keep on messing up. (I am new to this) By any chance could you direct me to a diagram on what to do with a bread board. Thank you and I apologize for any inconvenience.

[@Lidmotor]

Here is another video I did of the same circuit that might be a little clearer. Basically the transistor used here is just a simple switch. The spinning magnet induces a current in the sense coil. That tells the transistor to turn on the juice to the second coil that pushes the magnet rotor around. kzbin.info/www/bejne/b6vGo5ubbZqXi7c

[@garybrown2039]

@@Lidmotor Thank you very much. Do you happen to know if this will work with a series of flat magnets on the shaft instead of that cylindrical one that you have in the video.

[@Lidmotor]

@@garybrown2039 Yes but they must be strong magnets. Weak ceramic magnets will not generate enough current in the pickup coil to turn on the transistor.

[@garybrown2039]

@@Lidmotor understood thank you. Yea i've been using neodymium magnets but it wasnt working. I think i figured it out though. The size of my copper windings was that of a adult male's fist. But i noticed that yours was much smaller (like half to a third the area of mine). So im redesigning my motor again.

[@garybrown2039]

@@Lidmotor edit: yea same issue. Im goi g to try wiring it again. Wish me luck