Stirlingengineforum.com

Dear boys, You seem to want to tell me: that you INTENTIONALLY build bad "heat engines", and that you INTENTIONALLY make an even worse copy out of a bad copy, and that you INTENTIONALLY misrepresent your "heat engines", and that you ENJOY it? Are you members of some technical-ma...

Therefore, I urge all lovers of technical thermodynamics to refrain from "inventing": "new theories", "cylinders", "displacers", "pistons", "crankshafts", as well as to stop spending their precious resources on "useless toys", bu...

If the link does not work google "12v induction heater" works on 5 to 12 volts and costs 5US dollars. Dont know how long a 9 volt battery would last. https://www.aliexpress.com/item/4000277449484.html?spm=a2g0o.productlist.0.0.518a7b7aw5hN4w&algo_pvid=32ec22e6-6284-4f06-a4ed-dca17aaeb8...

Induction coil https://youtu.be/nlZl8YcKnLY I can't think why this would not work but serious overkill, on the otherhand does anyone know how the coils / heaters in "Vapes" work, a friend of mine used to build them and I think he referred to them as induction coils. Unfortunately my friend...

I am following this with interest.

After 12 hours run time, did you note the condition of the Ice, frozen /part melted

"That does seem rather remarkable, that an engine hot enough to melt solder, nevertheless, did not burn or char the balsa wood displacer." It surprised me too, the most dramatic desoldering occured on the fire box with the chimney sliding off the roof. Having failed with the silver solder...

Displacer, I used balsa covered in aluminium foil. I made the displacer from 1/2" thick strips of balsa glued together. To locate the displacer on the shaft I soldered a flat piece of copper to the brass rod to form a stop, then added the balsa strips on either side. After forming the displacer...

Silver soldering is not the answer for me. I tried a couple of small pieces as tests and everything was as it should be and I was very pleased with the results. However when I tried on my work pieces I failed to get the pieces to the correct temperature, I ended up building a soldering hearth comple...

Here's a video just prior to the engine going into self destruct mode, if you look closely you can see the chimney sliding down the roof.

I have had a quick look and things are not unrecoverable.


https://youtu.be/t2NVVwjVn-c

I spent a couple of days deciding how to make doors on the firebox. Ended up making a drawer which was very easy and only took half an hour. The good news is - the fire box is brilliant, the engine got up to heat very quickly and started so easily I was really chuffed. The engine got quicker and qui...

Just stopped working for a coffee so I thought I would post something. No pictures of todays work so how about pistons. This works for UK Tube and pipesizes. Cut about 20mm (3/4") off the bottom of an empty steredent tablet tube, and fill it with epoxy. Take off the printing and it is a good sn...

Quick coat of Bar-B-Q Paint and some copper polish and it's starting to come together, its better than I hoped for. painted1.jpg painted2.jpg I am starting to suffer with lack of stuff due to the suppliers being in lockdown and lack of transport. I have sent off to china for some bits and bobs but t...

I managed to get some Aluminium and made a fire box of sorts and a cute little chimney out of bits from my box of scrap copper.
Is there anyone else out there working on a project during the lockdown?

Toodlepip

Had a play, reduced the amount of pressure pipe as suggested by Sadi, as a result of which I had to reorganise the conrods and ended up putting in a crankshaft, getting the third bearing lined up is proving troublesome - I need to rethink, but I am pleased with the progress. I cannot count that fast...

By having a stainless hot end, you should avoid any defiormations of the hot end if it gets too hot. (within certain limits) A steel thermos might be a good hot end, cut it and allow it to be soldered to the cold part where the temperature is low (no soldering problems) What do you think good or ba...