We could make one of *these *. ... You cannot help the poor by destroying the rich. You cannot strengthen the weak by weakeningnhengineer
Does anyone know if this is necessary for iron that's made with the continuous-cast process? I'm guessing there won't be sand in it but is there a hard skin?mwmkravchenko
Theres a chapter about filing in "Metalworking: Tools, Materials, and Processes for the Handyman" by Hasluck. He says cast iron parts need the outer skink15n1
Your developing world school needs almost-free machine tools?
Your developing world factory needs tools or unavailable spare parts?
You need a complex part that is too expensive to have made?
Need to bootstrap a factory but only have a few bucks?
First came the Multimachine, it started as a home-built milling machine and has been developed into an all purpose machine tool. It was a 2007 Popular Mechanics DIY project of the year and the centerpiece of Maker Faire Africa in 2009. It could be be built using only automotive scrap and steel bar. IT CAN PERFORM ALMOST EVERY METAL MACHINING OPERATION!
Our latest project is derived from a long forgotten but prize winning design for a 1915 cannon shell making machine that was made from concrete. It is now a general purpose screw cutting metal lathe (the basis of all industrial production) that is built using only concrete mix and metal scrap.
Only regular carpenter's and mechanic's tools, a very small amount of welding and a $10 dial test indicator are needed to build.
If you are serious about building machines, really study the sites below.
http://opensourcemachinetools.org/ (see the resource page for 150 carefully selected plans, files, books)
See a 75 minute long (but very amateurish!) video of the machine at http://opensourcemachine.org/the-multimachine/multimachine-video
http://concretelathe.wikispaces.com/Current+Design+Drawings (Yeomans files)
https://groups.yahoo.com/neo/groups/romig_designs/info (VITAL THAT YOU LEARN ALL ABOUT "BOX" WAYS AND OTHER JOE ROMIG TECHNIQUES)
READ the "How to Build a MultiMachine" file at the top of list in the "Files" folder.
- Aug 17, 2004
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