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Thread: Aluminium Gears

  1. #1
    Join Date
    Nov 2007
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    Near Rockhampton
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    270

    Default Aluminium Gears

    https://www.youtube.com/watch?v=2NAdyOPbOEg

    So that's where those non genuine diff gears came from.


    Actually it says he did it to demonstrate his casting skills.
    Pretty impressive for a very basic setup.

  2. #2
    Join Date
    Nov 2017
    Location
    Geelong, Australia
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    57
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    Default

    Love the actual pour where he's holding the flask down with his foot and pouring the molten aluminium towards it.
    What could possibly go wrong with that

    Steve

  3. #3
    Join Date
    Apr 2018
    Location
    Drouin Vic
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    633

    Default

    That's the Mahindra factory.

    I've seen a heap of videos of this guy doing his thing over the past few weeks. Lots of interesting things about what he does- apart from the fact that he works with his knees in his armpits all day, then when he leaps up to do his little dance to ram the flask somehow he doesn't lose consciousness. And he still seems to have all his toes, which is just as well as he doesn't seem to have anything else to use to weight his flasks.
    His little pile of sand appears to use a sawdust binder or similar, when he shakes out the flask he re-uses the resulting charcoal for his furnace. He has some interesting techniques for his sprues, there's one where he's making a motorcycle gearbox casing and he makes the ingate long and thin, then just snaps off the riser from the casting. Would save a bit of fettling if it worked.

  4. #4
    Join Date
    Aug 2012
    Location
    Greenmount, W.A.
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    70
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    272

    Default

    Won't the casting be smaller than the original? Long long ago I watched my now deceased older brother cast an aluminium rocker cover for his FJ Holden using one he had borrowed as the pattern. Several failures, but one was perfect. But when he went to fit onto the car, it was too small - particularly not long enough to cover the rockers. He was not happy. I remember that bit very well!!

  5. #5
    Join Date
    Aug 2011
    Location
    Perth, Western Australia
    Age
    67
    Posts
    362

    Default

    Yes it will shrink.
    3/16" per foot I think it is for aluminium. (its been way to long so don`t quote me on that)

    Tony

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