A Stirling Engine stripped down so that you can see how it was made

[vincenthippie]

Thank you very much for putting the demonstration video up. u have answered all of the questions I had about building a stirling engine. There are not a lot of videos that explain what dose what and how to get it running. Thanks again Fiachra Fitzgerald.

[AndyDaviesByTheSea]

@vincenthippie

Hi there, I’m glad the video helped you. Good luck if you’re building an engine but remember friction is probably the biggest problem. The power piston needs to be air tight but not so tight as to be hard to move.

Kind regards ... Andy.

[rugto]

I wish that the good God (who does not simply sit and watch as we kill ourselves for oil) will bless and give you all the tools you need in order to get this project into a locomotive chassis. May he struck ASAP upon those who will attempt to terminate your lives and your fancy but oil destructive project.

[hydro1131]

@AndyDaviesaByTheSea

I'm currently trying to build my first engine .. I decided to use a Nylon rod for the 'plunger' of the power piston , do you reckon it will hold out.. Or will it melt after a while ?

[AndyDaviesByTheSea]

@hydro113 Hi

you haven’t given me enough information to be able to say for sure but try it. It’s a good way to learn. I’ve learnt more from the things that have gone wrong than anything else, believe that as it’s the whole truth! The piston in the one in the video is some sort of plastic but there are a lot of different plastics, ‘Google’ nylon and you’ll find some with high a melting point and some with a low melting point. Get it working and change it if you have to.

Andy

[hydro1131]

Thanks for the video & PDF book. You're a true gent, and very clever chap too.

I have a clearer .. Greater understanding of how Stirling engines work.

Well done fella. And a million thanks !

[AndyDaviesByTheSea]

@hydro1131

Well thank you very much; I think I can list you as a happy viewer.

I’m really pleased that I’ve been able to help you, good luck if you build an engine.

Just remember that a little engine doesn’t have very much power and a homemade model has to be made with the absolute minimum of friction, otherwise it simply won’t run!

Kind Regards ... Andy.

[lmojzis92]

I like the australian accent

[AndyDaviesByTheSea]

@lmojzis92 Hi there or should that be ‘Good-day’

Just for the record, I was born in Birmingham, England and that’s a Birmingham accent your hearing it’s what’s know as a ‘Brummie’ accent. I’ve never been to Australia which by the way is almost on the opposite side of the world to England.

Anyway, I hope you enjoyed the video.

Kind Regards ... Andy

[lmojzis92]

@AndyDaviesByTheSea Forgot to mention I like the video as well :) Anyway - I'm from the Czech Republic so I probably think everything non-US english spoken seems to me to be australian accent. Sorry for that in advance :)

[AndyDaviesByTheSea]

@lmojzis92

Hey there, no problem. I’m glad you enjoyed the video. It was the first video I made for YouTube and it looks like it’s helped a lot of people to get a better understanding of how the engine works. I made the video because I couldn’t understand how the engine worked so I just had to get to grips with it and I figured the best thing to do was make one of my own so I could let others know what it was all about.

Kind Regards ... Andy

[StirlingEngine123]

Nice demonstration of how all the parts get togheter. Ohh, and nice engine too! X) Congratulations. About the balance of the cranckshaft with tath spring, doesn't it makes some force on the movement of the crank? I mean, you compensate, but shouldn't be better to do it on the crankshaft or in the flyweel ( I don't know about the tension that the spring can produce... I'm just asking XD (this is not a bad commentary, just a question- sorry some bad english... )

[AndyDaviesByTheSea]

@StirlingEngine123

Hi there, you could balance the crank by adding or removing weight but I think as the weight of the piston in vertically downward there’s nothing wrong with compensating for that weight with a spring. You couldn’t do that to compensate for a fast spinning component that is out of balance as the sideways inertia cannot easily be countered with a spring. I hope that helps you.

Kind Regards ... Andy

[peeweet123]

awesome 

[SOOMROA1]

SIR I WANT TO KNOW WHERE DOES THE AIR ENTER?

[AndyDaviesByTheSea]

@SOOMROA1 Hi there.

The air is trapped in the chamber when it’s made.

In fact it is important that the air is sealed in.

The same air is recycled all the time. The same air is moved from the hot side to the cold side over and over again never changing but when air is on the hot side it expands and pushes the small piston when it’s on the cold side it contracts and sucks the small piston back. I hope that helps you.

Kind Regards ... Andy

[professorNIKKI]

Thank you man, finnaly somebody whos willing to share! Im trying to make one and thanks to you i think i will be quite successfull

[AndyDaviesByTheSea]

@professorNIKKI

Thank you and good luck with the project!

You may not get it to work first time but if you don’t, watch the video again and see if it helps you to understand were the problem is.

Kind ‘Regards ... Andy

[1965bojarinas]

va sitas englengeris yra sehr gut!

[DatDamnGuy]

Thanks a lot! Appreciate your willingness to break down your own device to show us the inner workings of it. I have a better understanding now.

[samus4ful]

wow nice

[MrDrowningEntree]

Thanks Andy this video has helped me understand the engine more, and has given me a few ideas of what to include when building my own. Great video, this is the only one i have seen that actually explains whats going on.

[eliktsur1]

Thank you Andy. now i have a better understanding of that engine.

good thinking. regards from Israel :))

[AndyDaviesByTheSea]

@eliktsur1 Hi there

I'm glad that I've been able to help you, did you get the free eBook?

I've just put how to get it in the description up above.

Have fun and if an engine doesn't work first time don't give up, the problem will be in front of you , you just have to work out what you've done wrong.

Kind Regards ... Andy

[AndyDaviesByTheSea]

I'm pleased to have been able to help you, if you're building an engine I'd be interested to hear how you get on with it. But remember, the chances are that the engine won't work at the first attempt, mine didn't but if you stick with it and really pay attention to what's happening you'll get there. Good luck.

Did you see the free book down load from Lulu.com Search Lulu for

"A Stirling Engine Stripped down so that you can see how it was made" remember it's free.

Kind Regards ...Andy

[510prodz]

Thank you so much for posting this!

Before, I was unable to understand how to build the crank rod, but after watching your video I completely understand. Thank you

[technology49]

Whats the difference in Liposan and a Lipstick??

[technology49]

Can i use a Liposan for the small piston?

[AndyDaviesByTheSea]

@technology49

Hi, don't use Liposan as the piston but if we're both talking about the same thing I guess you could use the tubes (like a lipstick container) in some way.

Good luck... Andy

[BuildSomethingUseful]

Great video, thank you. 

[technology49]

The best video i have ever seen about Stirling Engines

[technology49]

Very useful thank you

[technology49]

Hello.I want to ask something.Can i use styrofoam for the big piston?

[AndyDaviesByTheSea]

@technology49 Hi, sorry about the delay my computer is hiding things from me!

Because you will be applying heat the foam could melt so be careful. Some very efficient engines work at quite low temperatures and foam is OK in those, mine is not efficient so it needs a lot of heat. You'll see that I have used cardboard but this will burn after a while. It gets very very hot!

Kind Regards ...Andy

[bunions4444]

Real good work. Thank you for making the video.

[edpax14]

Sir,thank you for this great tutorial!

[AndyDaviesByTheSea]

@edpax14

Thank you, it's an absolute pleasure to be able to help you gain a better understanding.

Kind Regards...Andy

[edpax14]

Sir you just did a nice job to help us understand how stirling engine works and how it can be made from simple thing around us..Thank you Sir!

[dorkyhat]

This video together with your pdf manual at lulu.com are very good and helped me to understand how the engine works. Thank you

[AndyDaviesByTheSea]

@dorkyhat

Hi, I'm glad it helped you, that's exactly why I made the engine and the video, to help people understand.

Thanks for the nice feed back.

Kind Regards...Andy

[MegaZarada]

Very Nice work !

[sagusoft]

Es triste ver como se desarma y se rompe esa obra de arte pero eso sirve para enseñar y revelar misterios y por sobre todo enseñar...muy bien....Queria leer tu libro y no me deja en la pagina lulu si podes mandar melo x mail te lo voy agradecer mucho mi mail particular es sagusoft@live.com lo espero con muchas ganas un saludo y felicitaciones

[AndyDaviesByTheSea]

@sagusoft

Thank you for your kind words. I think you are asking how to get the free book. Go to lulu.com

Enter "A sterling Engine striped down so you can see how it was made"

Then you can download the eBook for free.

I hope I have understood your question correctly.

If anyone else reading this thinks my answer is incorrect please tell me.

Kind Regards...Andy

[offspringfanman96]

a nylon what?

[AndyDaviesByTheSea]

@offspringfanman96

It's a nylon insulator.

It's a piece of plastic that has a small two bass nuts moulded into it. It is something that is used by electrical engineers but I'm sure you can find or make something similar.

If you go to the website Lulu.com and search for "A Stirling Engine stripped down" you can see some close up pictures that should help.

I hope that helps you.

[offspringfanman96]

@AndyDaviesByTheSea il just use a baloon...

[gm4ulkill]

pure awesomeness i enjoyed this vid almost like watching the discovery channel 

[Turan123]

Andy are you from Northern california or something? Your accent is weird.

[bestchess]

this was a great video thanks alot

[ajaikiller]

where to find that crank ?

it's hard to find the small crank like yours. can help me out please.

[AndyDaviesByTheSea]

@ajaikiller

Hi, the crank that I used was made from part of an old coat hanger. Ive written a little book about this engine and you can have it for free.

Everyone can obtain a free eBook in pdf format about this engine at Lulu . com just search for A C Davies or A Stirling engine stripped down.

Its got 25 pages and 29 pictures. I hope that it helps you.

Kind Regards Andy.

[johneboy216]

I sorry you had to take apart the engine to show us, but man, that was awesome. I have been trying to find a video like yours. Thank you very much. This video was very helpful indeed.

[specialist50]

wonderful

[albionrulesok]

Very nice Andy but honestly, if I had a view like yours I could make a much better engine...

Joking of course, I would be just sitting around sipping Chardonnay and thinking how lucky I was.

Thanks very much for a very informative video -and the eBook is great - well done!

[AndyDaviesByTheSea]

Thank you for the positive comments, Im glad you were able to download the eBook OK.

Because I give it away for free, I dont know how many times its been down loaded but its good to know its been downloaded down-under.

Kind RegardsAndy

[coolaidkiller101]

what type is the best engine (most efficeint/powerful)alpha,beta,­gamma

[AndyDaviesByTheSea]

Sorry for the long delay. I dont know the answer to your question. The engine in the video is the only one Ive ever made. Im sure youll find the answer on the net though.

Good luckAndy

[coolaidkiller101]

is the displaser air tight

[AndyDaviesByTheSea]

No, the displacer piston (made from a cereal packet) is not air tight.

It would be better if it were solid as its volume represents a waste as the air expands and contracts inside of it whereas that volume of air could be driving the power piston.

You could use a solid polystyrene displacer but remember that it will melt at a low temperature. Dont use anything heavy unless you counterbalance it.

I hope that helps.

Kind Regards Andy.

[AndyDaviesByTheSea]

Youre right, there is no water.

Ive written a little book about this engine and you can have it for free.

Everyone can obtain a free eBook in pdf format about this engine at Lulu . com just search for A C Davies or A Stirling engine stripped down.

Its got 25 pages and 29 pictures. I hope that it helps you.

Kind Regards Andy.

[JONMCGAVIC]

Useful information "Thank you very much"

[AndyDaviesByTheSea]

You can obtain a Free ebook about this engine at Lulu . com just search for A C Davies or A Stirling engine stripped down.

Its got 25 pages and 29 pictures. I hope that it helps.

Kind Regards Andy.

[horshak1]

thank you for all the info. I have built 2 of these engines and have yet to get one to work. The 1st was from the site Incredibles I assumed the problem was the piston fitment which you just blew away. The second was with a diaphram and although close will not work. After your video I'm really feeling down. Thanks again for the info I will study your video several more times.

[AndyDaviesByTheSea]

Thank you for the positive comments.

I've sent you a private email that I hope will help you; its too long to fit in here.

Well done on not giving up!

Please let me know how you get on.

Kind Regards Andy

[AndyDaviesByTheSea]

@horshak1

You can obtain a Free ebook about this engine at Lulu . com just search for A C Davies or A Stirling engine stripped down.

Its got 25 pages and 29 pictures. I hope that it helps.

Kind Regards Andy.

[shotgunfetus]

Thank you for posting

[hay1mart]

Merci pour nous avoir expliqé , c'est genial ,cordialement; Martik.

[whotoinfinity]

Andy, Your video was very helpful and informative. Thanks so much for sharing it.

Gill

[ecraftsmen]

Great video - well explained. Sounds like you are originally from the Midlands and not the seaside!

[NBMonkey]

Very interesting. I'm going to dabble with this during the long cold Canadian winter :)

[lar5220]

i would like to know how many hp a engine like this can make if you scale it up

[AndyDaviesByTheSea]

Hi. The answer in several parts.

Part one.

First of all you should know that Im no expert in these engines, Im merely someone who has made a model engine that works.

Reasonably it should be easier to get a larger engine working than a small engine, so a hundred hp or more would seem not unreasonable.

Because of the small volume of air in a small engine you only need a tiny tiny gap in one of the seals and youll lose the pressure/vacuum and the engine wont function.

[AndyDaviesByTheSea]

Part two

If you had a huge volume of air you could afford to lose a little air and it would have a much lesser effect.

It would be relatively easy to fit efficient bearings to a larger engine this in turn would make it easier to adjust any counter balance that may be needed.

[AndyDaviesByTheSea]

Part three

I think that youll find that 5 hp Stirlings were commonplace. Again, Im no expert but I think that the maximum size engine you could build will be limited by your budget and not by the physical constraints of engineering scale.

I think that if you had a machine with a one hundred foot diameter displacer it would be a slow running thing of great beauty.

[AndyDaviesByTheSea]

Part four

My advice would be to build an engine with the bits that you can find at little or no cost, build it as large as you can. Once you get that engine working you will learn a great deal about whats good and whats bad about your design.

[AndyDaviesByTheSea]

Part five Only after youve got the prototype running would I start spending money on materials. If you cant build an engine out of junk you probably havent got the temperament to see the project through, youll see many Stirling engines on You Tube, I doubt if any of them burst into life on the first firing. I know I had to breathe life into mine but once I worked through the problems it always ran successfully.

I hope you get on well, let me know how you do.

Kind Regards Andy.

[Yashi7]

thank you very much for the explanation. I was looking for a video exactly like this one.

5 stars!

From now I'll try to build my first engine with your advices.

I am so excited to create an engine ^^

Thank you.

[Yashi7]

haha I tried and I completly failed !!

[AndyDaviesByTheSea]

Hi, thanks for the kind words.

Good luck with building an engine, you may not get it right first time but keep at it and you have great joy when you get it working.

Ill send you some information to help you.

Kind Regards Andy.

[AndyDaviesByTheSea]

Sorry, I cant find your email address so cant send information

Regards Andy.

[sapien01]

very nice!

Good video, the best explain!!

im just sad that you "destroied" your engine to show it to us!

:P

Thanks

[conman33311]

hi i need help i was thinking of making a steam engine for my first engine because i thought it was easy but is a sterling engine easier? plz help me also i don't have alot of supplys but i can get some stuff i have only about $50 dollars i want it to look good not bad or like supper good so plz give me your answer for a simple yet cheap engine

[teaguen8879]

hi andy i have made 1 but it dont work :( i turn it and turn it and it dont work help me plssss:(:(

[AndyDaviesByTheSea]

OK, Ill send you some information to help you; its a lot of information so Ill send it as a separate message. You my need to send me a picture of your engine so we can talk about it.

Kind regards Andy.

[teaguen8879]

THX

[luckviewer777]

this is a fantastic video thank you so much

[osmaningozyaslari]

Thanx for your video

[scuffieduffie]

shit i tried so hard but it didnt work -_-.

ballance was good i put bearings in it.

o well lets buy some more stuff.

[AndyDaviesByTheSea]

Im sorry to hear that youre struggling,

I understand your frustration, Ive been there.

The thing to remember is that the problem is in front of you; youve created it yourself so now you just need to try to work out what you have done wrong or whats not working as it should. You can do it; it may just take a little time. Let me know if you want to send a picture of the engine so I can try to help you. Good luck. Andy.

[scuffieduffie]

the balance is not ok yet and i have to figure out the power of the piston and the dicplacer how far can i go with a bigger piston.

[hdfailure]

simple thing, explained in a simple way, by a simple person. thanks andy this helps a lot

[scuffieduffie]

is the displacer for moving the air and it doesent care whare its made of but it has to be light?

and the piston is for the power?

when i got my pencil torch i try to make a working one,i will buy some new materials.

Nick

(my english is not that good)

[AndyDaviesByTheSea]

OK Nick,

Yes you have it correct; the displacer is there to drive air from the hot end of the chamber to the cold end of the chamber.

As the air heats it expands and as the air cools so and contracts.

When the air expands it pushes the power piston up and when the air cools it draws the power piston down.

The displacer could be made of any material but it makes sense to keep it light.

Let me know how you get on.

Good luck Andy

[plavins1]

oh thanx .i found this really helpful.... now i am gouing to make one

[scuffieduffie]

wow that something looking so difficult is so simple.

cardboard :D

[AndyDaviesByTheSea]

Thank you for the positive comment.

I think that most things can be explained in a simple way.

Even complex machines can be broken down into simple building blocks; they may have more blocks that may be interdependent but never the less when looked at closely enough each block can be easily explained and understood.

The hard part is coming up with the original idea in the first place. Andy

[lestarling]

Thanks for providing this insightful demonstation. I found it very helpful.

Les Starling

[zker666]

very nice design.

i have made my own design based on this one and i have mad an auto-cooling mechanism to help cool better using the engine's own power. very nice! thanks!

[AndyDaviesByTheSea]

Thank you for the positive comments; Im really pleased that the video helped you.

I hope you have fun designing and building your engines. Kind Regards Andy

[ak2600]

78 1050 15201000 0022 7911 0841

[anich92]

Thanks for making this video

ive got a much better idea of how stirling engines work.

[vvvReVoluZZeRvvv]

Nice work!

Both - the engine and the video! 5/5!!

[andrew7787]

Thank you for posting this. As you say, there are many engines on youtube seen working, but not so much information about building them. Very interesting to see.

[AndyDaviesByTheSea]

Thank you for the comment. Ive had some nice comments and loads of messages have gone back and forth.

It looks like my video has really helped some folk and Im glad I posted it.

Kind Regards Andy

[ghjkl123298765]

Great video! Not a lot of these out there. Thanks

[THQC101]

Andy -Thanks for a really great video. I am attempting to build a Stirling Engine and this was very helpful. What was the ratio of your displacer to main chamber volume and the stroke? Did you use a 3" tape roll?

[AndyDaviesByTheSea]

Thank you for the positive comments.

The displacer chamber is 75mm internal diameter by 50mm high (around 3id by 2high) and the displacer has an outside diameter of 70mm and its 19mm high (thats around 2 ¾ by just a little under ¾)

The main thing is that the throw of the crank is such that the displacer sweeps as much air out of the chamber without hitting the top or bottom of the chamber.

Because of the limit here Ill send you a message with more info.

Kind Regards Andy.

[THQC101]

Thank you Andy- I'll look forward to it, I appreciate the information. My recent attempt at a LTD type didn't quite work and after watching your video I am thinking that my size of displacer is the reason. I used a tape roll approx 3" x 1" with a displacer 2-7/8" x 5/8" made of foil. I had about 1/32" clear each end. That gives me only 5/16" of air volume.

[artem3334873]

Thank you very much I have build 23 of which did not work. I am starting to make another.

[AndyDaviesByTheSea]

Wow, thats a lot of engines, well done on your persistence but now would be a good time to find out whats going wrong!

I will send you my email address and if you can send me some pictures of one or more of your engines I will try to help you to get one of them working.

Good Luck

Kind Regards Andy.

[SWINGREGORY]

COOL

[AndyDaviesByTheSea]

Ill take that as a complement.

Thank you for watching.

Regards Andy.

[RamoneTalarico]

i would love to build one!

[AndyDaviesByTheSea]

Hi,

I dont have any plans of how to build the engine; I simply looked at what other folks are doing and did what I thought right.

I would suggest that if you build a junk box special of a similar size to mine make the power piston at least 25mm diameter and make sure its all free running when you spin it.

Good luck. Regards Andy.

[tristanyseult]

thankyou andy, finally understand the displacement principle I allways thought like most, that the displacer was sealed to the bore,thanks again will be watching for furthe posts.

[Tylermac1020]

How does the heat do anything with the dissplacer so loose?

[AndyDaviesByTheSea]

Youve asked for an explanation of how the engine that I made to go on You Tube works, as its reasonably extensive Ill send it as a message to you.

Regards Andy

[niall123456123456]

great video

what does the displacer do ??

[AndyDaviesByTheSea]

With heat on the bottom plate, when the flywheel is turned the displacer pushes the hot air to the colder top part of the chamber, the air cools and contracts, this sucks the power piston down. The air heats up again and expands, this pushes the power piston up and so the cycle goes on.

So, the displacer is there to move air from the hot zone to the cold zone and back again, over and over again. Is that clear?

Regards Andy.

[tikifish28]

Nice video Andy, I was hoping that you could look at my design and see if you could help me, I have made three so far which none have worked, you can find it by going to my videos it is called homemade stirling engine.

[AndyDaviesByTheSea]

As the answer is reasonably long Ill send you a response by email, well done for sticking at it youll get there in the end Im sure.

Regards Andy

[AndyDaviesByTheSea]

The idea is for the displacer to move as much air as it reasonably can from the hot zone to the cool zone. In this way the air contracts and expands and this causes the pressure to draw the power piston down and then push it up again.

So, if you have to use a tall chamber you should use a tall displacer to move (displace) all the air from the hot zone to the cold zone. The displacer will be shorter than the chamber by the throw of the crank, plus a small clearance. Dose that help?

[anthacdc]

yes thank you for your help.

i have nearly completed building it.

[AndyDaviesByTheSea]

I'm pleased to have helped.

Please let me know how you get on.

[anthacdc]

i have one question does the displaser piston travel all the way from the botton to alway way to the top or can i just travel halfy way up then go down?

I ask this as my chamber is quite tall?

[anthacdc]

Thanks for the great video!

im masking a stirling engine and this really helps alot,

Thanks so much

[jodamana]

Hi,

I've been watching this video and is amazing. I am going to build a stirling engine for a school project. my stirling engine is going to make a small electric engine to turn on a lamp.

I didn´t kwew that this kind of engine run so fast and thanks to your ideas to max the power and low the friccion, my work is going to be more easy.... So thank you very much

[AndyDaviesByTheSea]

Thank you for your kind comments.

Remember that any engine that you build may not work first time.

If it doesn't don't give up. Just study it carefully as the fault will be in front of you and under your control.

You can make it work but maybe not first time.

You just have to think it through.

Good luck, Andy.

[tomshaze]

awesome!

[AndyDaviesByTheSea]

Ill take that as a complement, thank you.

[SoundsLikeOdie]

Thank you for the brilliant video. I want to build one and thought that the larger piston had to be sealed with the sides of the chamber. After seeing your video and having read a little about the engine on the net its operation now makes sense.

Thanks again.

[AndyDaviesByTheSea]

To SoundsLikeOdie

Thanks for the positive comment.

I just had to build an engine myself just to see it work.

Whether you build a precision instrument or a junk box special Im sure youll get a buzz when you kick it into life.

One word of caution friction is likely to be your biggest enemy.

Regards Andy.

[randomuser888]

Thanks for tearing your stuff apart for us! I finally get how to make a simple model of this engine. Much obliged!

[AndyDaviesByTheSea]

Thanks

Im glad that you were able to see the clip for what it is, a demonstration of how simple this sort of engine is.

Compared to the beautiful engines that a lot of people have built mine is rather rough and ready but the basic principle, of course, is exactly the same.

Ive always learnt by taking things apart and I figure that anyone thats interested wants to see inside rather than just seeing it run.

Let me know if you get around to building one.

Regards Andy.

[AndyDaviesByTheSea]

To desiredusername. Thank you very much for the positive comments.

Yes, the masking tape held up quite well in the short term, it did start to turn brown and it would eventually catch fire but remember the chamber is only a cardboard tube, as is the displacer. I ran the engine three or four times for about five minutes at a time.

[AndyDaviesByTheSea]

As an inventor and engineer I started off thinking about O rings and I know I ought to use ball race bearings and maybe go to the trouble of making a finely engineered machine but really all I wanted to do was prove to myself that I had sufficient understanding to be able to throw it together. I did find that when the tape got hot the adhesive softened and I lost pressure in the chamber but when I clamped it together with the springs the problem went away.

[AndyDaviesByTheSea]

Im not sure which spring your referring to in your comment; I assume you mean the leaf/coil spring to lift the piston. I figured that its not easy trying to balance the flywheel with the piston flapping about so the easy option was simply have a plain balanced flywheel and to take most of the weight of the piston with the spring.

[AndyDaviesByTheSea]

I clamped the top and bottom plates together with the coiled spring because I had them to hand but in terms of thermal conduction they have to be better than connecting the top and bottom plates with a thermal bridge, like a bolt. I havent seen springs been used for these functions before but it makes good sense to me to use them.

I hope others are able to make use of these ideas. Kind Regards Andy.

[desiredusername]

Great video! Your voice is awesome and the spring is pretty brilliant.

Does the tape really hold up to the heat? I guess for a short run...

[baconsoda]

Excellent demonstration. I've been wanting to build a Stirling engine and this is very helpful because I have seen loads of designs and technical diagrams but seeing how an engine was built is great.

Thank you.

[AndyDaviesByTheSea]

Thanks for the very positive comments.

I only posted the clip this morning (its my first clip on You Tube) I hope that it encourages people to have a go at making things.

The biggest problem to overcome is friction. I made the engine with simple tools, I have a small lathe but I didnt use it for this project.

Kind Regards Andy.