Loading ...
Sorry, an error occurred while loading the content.
  • Back
  • About Group

  • Join Group
, added in the last 7 days
New MessagesSee All
  • Fwd: [Junkyard-DIY-Projects] DIY Forklift

    We could make one of *these *. ... You cannot help the poor by destroying the rich. You cannot strengthen the weak by weakening

    nhengineer 21 hours ago
  • Re: skin on continuous-cast iron

    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 7 days ago
  • skin on continuous-cast iron

    Theres a chapter about filing in "Metalworking: Tools, Materials, and Processes for the Handyman" by Hasluck. He says cast iron parts need the outer skin

    k15n1 7 days ago
Fetching Sponsored Content...

Group Description

Doing something for the world with machine-tool making techniques from the 1830s to the 1960s
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?

No problem!

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.

Group Information

  • 8150
  • Crafts
  • Aug 17, 2004
  • English

Group Settings

  • This is a public group.
  • Attachments are permitted.
  • Members can hide email address.
  • Listed in Yahoo Groups directory.
  • Membership does not require approval.
  • Messages from new members require approval.
  • All members can post messages.

Message History