The objects above are about as simple as it gets as far as casting goes, they are cast aluminium boddy bobbins as used in boat building and fibreglass bodied kit cars. Patterns were
split and mounted twenty on each side of the match plate.       

   
            
These are a bit more complex, made from two-part patterns, but still fairly easy to cast, hinges are then finished with machining, drilling & threading.

       
               
Another product, and a bit more complex again, this is an automotive clutch slave cylinder, this item was tricky being a pressure cylinder, porosity created many drama's, in the end steel chills were used in the sand moulds to promote rapid cooling of the metal. Patterns were two-part split mounted on match plates along with runners & gates.         

                          
              
Now here is something that will test your foundry skills... making a multi part metal die to cast alloy pistons, it can be done with much determination, skill & patience, a very rewarding project. The machining and finishing is another story again.

Moya Made Miniature Chev V8.

Here is an interesting project a, 1/6th scale Chevrolet 327 cu in V8. Based on a 1964 365 hp Corvette motor, measurements have been taken from an actual engine. The head and block began as billet aluminum that have been painstakingly machined on a Bridgeport-style mill. The 5-main crank has real babbit bearings, while the cam is a scale 30-30 Duntov.

Dies were developed for stamping out the front cover, oil pan and rockers. The pistons and water pump housing are cast aluminum, and the valve covers are going to be investment cast.
Take a look at the large number of photographs plus youtube vids of engine running... cool stuff.

http://www.moyermade.com/chevyV8.html

Ancient Chinese Bronzes.
11th century B.C.
Amazing what can be achieved with basic skills & determination, there were no motor driven blowers on furnaces back then!
http://faculty.vassar.edu/brvannor/bronzes.html

The following article was printed in the ezine a long, long time ago, right now might be an apt time to revisit this:

The Invisible Gold Mine For The Metal Craft Worker.

Most metal craft people, i.e. hobbyists, overlook the potential gold mine sitting right in front of them in their own workshop. Have you ever thought of supplementing your income by doing
outside jobs repairing metal utensils and articles. Many of your friends most likely have metal items in desperate need of repair, these items generally lay idle and not used because
most people do not know where to take things for repair work.

You could start out by doing work on speculation; you might need to do some footwork in developing your "expert" reputation; but a few "freebees" done here and there for the right kind of people will quickly get the word around about your "expert" metal craft repair skills. 

Think about how you could apply the same techniques used to create your own metalware to set up and repair the metalware that someone else has made. In doing so you could provide a valuable service to your community and generate a significant income at the same time.

You could even develop the enterprise to a point where full-time metal craft services could be provided, if you are good at your work it won't take long to develop a solid reputation in metalware repair work, as words spreads people will start to seek out your services. you could end up with many customers.

It would'nt matter if you were located in a hard-to-find, out of the way place, word-of-mouth advertising generally will be enough to give you more work than you can handle. You could even build a small web site with examples of your work displayed.

Anything made from metal will eventually need care and attention. Metal gets dented, crinkled and cracked. It gets torn, broken and tarnished.

All of those problems and more, need the attention of a skilled metal worker. Many valuable metal work pieces are simply scrapped; because of the lack of people with the skills to effect repairs.

Could you become the local metal repair expert?
(I know several blokes here in OZ who really make their foundry pay)

If you work with metal, chances are you already have most of the skills and tools to provide this service, you will be helping to preserve the products of fellow metal workers and make good money doing it.

Your foundry skills and general metal work skills could provide you with the confidence to explore this avenue of being rewarded financially for your skills & efforts.

There is an acute shortage of many skilled trade's people these days, and this is happening all over the western world... the day may not do too far distant where skilled trades people will have equal or higher incomes than many so called "elite professions", in fact this is already the case
in some countries.

The idiot, D... Head, Low Life, call them what you like.
I guess they are every where on the Internet, we have one nutter who uses all kinds of oddball names to subscribe to what ever is going for free, 99% of the email addresses used are invalid, what the idiot does not realize is that he is just wasting his time as the system spits an invalid email address quicker than you can say flickit, he thinks he is being clever, but he is not, I guess if that's how he gets his rocks off everyday, then there's not much hope for him is there... who ever it is?