Before you decide to buy model Stirling engines online, you need to know the type of Stirling engine you want to purchase.
There is an amazing choice of designs, from single cylinder to multi-cylinder designs; most come ready assembled, but some are DIY, self-assembly models, usually taking no more than an hour to get up and running – and that includes the heating time, which is usually no more than ten minutes.
Generally speaking, the DIY models are less expensive to purchase for obvious reasons, although they provide youngsters with a challenge in building them, the instructions are usually straight-forward and easy to understand.
So, let’s make this buying of model stirling engines online a little less stressful for you by breaking them down into easily understood categories.
Well, you couldn’t ask for a cheaper, simpler, more basic Stirling Engine, so why fiddle about with coke cans to try and make your own?
For the price of a couple of coffees, you can have a model Stirling Engine that comes in kit form – and it is very easy to assemble – even a 10-year-old could do it with ease, but it is recommended anyone under 12 years should be supervised while the engine is running – naked flames, and all that.
Size-wise, 6.4 x 3.5 x 3.3 inches and a little over 10 ounces in weight, with its spirit burner this’ll give you hours of fun as it runs at around 200rpm, so the Amazon blurb says – which is more than likely far too slow as others claim theirs can achieve up to 2,000rpm.
You’ll have noticed the pushrods are barely pin-sized as lightness is the key to Stirling Engine efficiency, but that’s no problem as they are highly suitable for the power this engine produces and also it is classed as a ‘teaching toy’ – something to do with getting around import legislation I believe.
Just to show how easy the build is, here’s a Youtube video showing exactly that process.
If you are not sure about engines and their construction, then why not click this link and try this DIY model first? It really is a piece of cake…
A little more complicated as a construction kit, this DjuiinoStar well recommended one, taking around half an hour to build, is a fine example of a single-cylinder unpainted model you can adapt to your own color scheme.
It comes with tools for self-assembly and requires just a little patience to construct it as some of the parts are very small indeed.
Having a heavy base, when in motion it tends not to vibrate itself along the desktop like many small engines do.
The one main complaint about this model is when refueling. You need a small syringe to fill the fuel reservoir at the hot end because the hole is a mere 1mm diameter. Other than that buyers were very pleased with the product finish and how well it worked.
And, again, because it is a kit, it doesn’t cost the earth!