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TIG welded acoustical / exponential horns
DIY delta 3D printer using low cost recycled parts
How I built an electricity producing wind turbine
Hydraulic robot made of cardboard and scotch duct tape.
A Mechanical Iris Window With Porthole
Cardboard Cat House
Secret DVD/Bookcase Door
Building an electric racing car
Wood Propeller Fabrication
how to sew.
How to use stress analysis in Autodesk Inventor to test your parts.
Harvesting parts from a Laser Printer
Craft Cymatics: A sensing sand dispenser and vibrating sound plate
LTD Stirling upgrade, Less thermally conductive displacer tube clamping method.
Make a CNC Hot Wire Foam Cutter from parts available at your local hardware store
Make Your Own DIY CNC
Miniature Wind Turbine