What a 3D printer do I need? 

Every Reprap-, or 3D printers, that print ABS and PLA are suitable. A print area of 185 x 165 x 60mm is needed. 1 extruder is sufficient. Some components are printed with support material. In this case the support material is the same material, the component is printed from. Because even very small components must be printed the extruder nozzle should not have a diameter bigger than 0.4 mm.

What materials are printed? 


What other tools do I need, except a 3D printer?

A small electric drill you should already have. A drill stand in which you can clamp the drill is recommended. You also need a soldering iron and common hand tool such as wrenches, screwdrivers, a few drills and taps, files, pliers and sandpaper. In addition, a few spring loaded clamps and 2 screw clamps.

Where can I get the needed parts and materials? 

In addition to the printed components you will also need a couple of pipes, bolts, nuts and threaded rods. All these parts are standard dimensions, so that you get these materials at any hardware store. Components, such as the neodymium magnets, the wire and the ball bearings you get in various internet stores and on EBAY. The sources of supply are part of the construction manual.

I understand nothing of electrotechnology nor of aerodynamics. Can I build the Reprap wind turbine anyway?

Yes! The construction manual is not a textbook for electrical engineering and aerodynamics, but it contains an easy to understand  chapter about the generator, how the electrical energy is generated, and how the rotor blades work to drive the generator. Reading technical drawings or circuit diagrams, is not required. The construction manual guides you step by step through the construction of the entire system, with the help of a very detailed photo documentation.

Is the Reprap wind turbine robust enough to survive hurricanes?

To answer this question one would have to define "hurricane" firstonce. The Reprap wind turbine was developed and tested with the utmost care. High-wind testing was part of the development. For this high speed drives with our test vehicle were made with speed up to 120km/h. In October 2013 two testing patterns have survived the hurricane "Christian" and they also survived the hurricane "Xaver" in December without any damage. The storm protection by stall of the rotor blades and the generator brake by short circuit of the generator have been tested very positive.