I've searched the forums.

I've searched online.

I've searched high and low.

I understand the principle behind them (for the most part - but any in-depth explanations would be cool.)

 

But I can't find what I want.

 

 

So, HOW can I make a refrigerator from parts readily available (like, go to hardware store, etc) that is reasonably safe and (probly) legal?

 

P.S.: I did find one design, but it didn't really show me what I wanted.

http://home.howstuffworks.com/refrigerator2.htm

might be useful, and go to the next few pages.

Why dont you look at homebuilt computer cooling sytems you may find something useful.

buy some meths to use as a coolantand lots of pipes.

Meths? As in, methanol, etc?

While I'm at it, can a stirling cycle engine (in reverse, or something like that) be used to refrigerate?

if you had an air compressor, you could make a vortex freezer?

You cannot beat a sink full of cold water in the short term(from student days living in digs). Works great for milk,not so well for sandwiches,though i may have wrapped them up wrong!

LOL, I rem doing similar to that with Beer, we had an old record player, so we arranged the beers on the turntable put a wet cloth over it and pressed Play

 

we`de take it in turns to "water the Beer"

 

Aaaah the Good Ol` days

A vortex refrigerator? What is that?

A vortex refrigerator? What is that?

 

take a look here: http://www.newmantools.com/vor780.htm

 

http://www.itwvortec.com/vortex_coolers.php

 

and so on...

 

they can also be used to Heat things (the "waste product").

How many of these could be used (hypothetically ) to refrigerate to liquid-nitrogen temperatures?

easy man, go buy an entire ac unit from an old car in the junk yard

 

Get a air tight box.

 

Setup the Auto AC to blow cold air in the box

 

Use an electric motor and a pulley and a belt to drive the ac pump.

 

You could use a lawn mower engine, but, wouldn't be a very cost effective.

 

I have no idea how cold you could get with this, maybe you could use multiple systems, or, if the area is small enough it might get pretty cold.