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Réalisation - Hydroelectric power plant 2

  • Etape 1

    Fold in two a 16x4cm cardboard  to form a winding support.  

     

    Wind about 25 cm of copper wire 300 time around the support.

     

    Remove the support and wrap both sides of the reel with insulating tape.

     

    Form an oval as illustrated in next step.  

     

    Proceed that way to form 4 reels.



  • Etape 2

    Following diagram (to download in the blueprints/plans section) :

     

    Drill an 11mm hole in the center of the MDF block.

     

    With hot glue, stick the 4 reels at the locations specified on the diagram.

     

    warning Follow the sense of rotation of the reels shown on the diagram !


  • Etape 3

    With the flame of a candle, melt the varnish at the ends of the copper wires on about 2 to 3 centimetre. Remove the soot which has formed using sandpaper.

     

    Connect all the wires according to the diagram, by twisting them together.

    The two front wires are not connected together but instead to an electrical connector.

     

    At the other end of the connector fix a LED.

     

    Attach the connector to the front side of the MDF block with a small screw.

     

    Flatten the loose wires on the MDF board with strong transparent adhesive tape.



  • Etape 4

    Using hot glue attach the 4 magnets on the non-printed side of a CD-ROM according to the diagram (downloadable). It is important to respect polarities.

     

    Test them with a much weaker magnet (The magnets should attract and repel alternately).

     

    warning Neodym magnets attract each other very strongly. It is very important to fix them one after the other and remove any metal object from the work area.

     



  • Etape 5

    Fix the board with hot glue on one of the small inner side, of the bucket.

     

    Using a 13 mm wood bit, drill a hole in the side of the bucket exactly opposite to the central hole of the board.



  • Etape 6

    Screw the threaded cylinder at the end of the threaded rod and then, using nuts and washers, fix the CD-ROM on it.

     

    The last nut and washer must be left free on the rod.

     

    Try to perfectly center the cd-rom on the rod.



  • Etape 7

    Pass the rod from the inside of the bucket through the hole.



  • Etape 8

    Position the threaded rod in the hole in the middle of the board.

     

    "Fix" the rod where it passes through the hole in the side of the bucket with the nut and washer already placed on the inside, two plastic washers and from the outside a washer and a nut.

     

    The two plastic washers should be located just in the hole (the washers are just a bit smaller than the hole). The rod should turn freely.


  • Etape 9

    Report the patern of the turbine on the aluminium plate according to the downloadable model.

     

    Drill the centre with a 5 mm bit.

     

    Cut the disk with a pair of scissors as well as all the continuous line.

     

    Form the turbine blades by folding the doted lines with pliers.



  • Etape 10

    Attach the turbine to the end of the threaded rod, tightening it between two nuts.


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