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    pictures of construction effort

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    gmeast

    Posts : 20
    Join date : 2009-03-16
    Age : 65
    Location : S. California

    pictures of construction effort

    Post  gmeast on Wed Mar 25, 2009 1:42 pm

    Hi all,

    Once I decided to build a Keppe motor per the Keppe Motor Manual I realized I dreaded building the transformer support and also winding the wire. First I selected a fabrication method for the plastic transformer support. I decided to just cut up a bunch of pieces and glue them together. Since there's no way I could wind this thing without losing count of the # of turns, I built a winding fixture with a counter on it. The transformer support is made of 1/8" thick white ABS sheet. It is assembled using a hot glue gun and Super Glue. I made an assembly mandrel to facilitate assembly of the plastic pieces.

    The only reason I posted these construction details is that the manual only points to a picture of a plastic transformer support but gives no source for it. So to ease any frustration for any other Keppe Motor replicators that bought the manual I have presented one way to make it from scratch.

    Here are some pictures of that effort.

    #1 is the support center assembled on a mandrel. Pieces were held in place with rubber bands.
    http://home.pacbell.net/gmeast/keppe/keppe1.jpg
    #2 is an end "C" flange and center getting ready for assembly
    http://home.pacbell.net/gmeast/keppe/keppe2.jpg
    #3 is one end "C" flange attached to center on assembly mandrel
    http://home.pacbell.net/gmeast/keppe/keppe3.jpg
    #4 is both end "C" flanges attached to the center
    http://home.pacbell.net/gmeast/keppe/keppe4.jpg
    #5 is the complete main support. "C" flanges are closed with a short piece between the "C" and a doubler
    http://home.pacbell.net/gmeast/keppe/keppe5.jpg
    #6 is the fully completed transformer support with primary and secondary partitions.
    http://home.pacbell.net/gmeast/keppe/keppe6.jpg
    #7 is the winding fixture showing the counter and arm on the winding mandrel and crank
    http://home.pacbell.net/gmeast/keppe/keppe7.jpg
    #8 shows the finished transformer support on the winding fixture and wire spool ready for winding wire
    http://home.pacbell.net/gmeast/keppe/keppe8.jpg

    Peace,

    Greg

    gmeast

    Posts : 20
    Join date : 2009-03-16
    Age : 65
    Location : S. California

    transformer winding

    Post  gmeast on Wed Mar 25, 2009 10:22 pm

    Hi all,

    Here are a few pics of my winding operation:

    #9 show the primary winding underway.
    http://home.pacbell.net/gmeast/keppe/keppe9.jpg
    #10 shows the secondary winding underway
    http://home.pacbell.net/gmeast/keppe/keppe10.jpg
    #11 shows the finished support plus both transformer windings finished.
    http://home.pacbell.net/gmeast/keppe/keppe11.jpg

    It took me about 4 hours to make the winding/counting fixture and only 7 - 10 minutes to wind 500 turns + 500 turns = (1000 turns). I think my investment in the winding fixture was worthwhile - I didn't lose count and besides I still have the fixture.

    Peace,

    Greg

      Current date/time is Sun Nov 19, 2017 10:53 am