Size matters to some and not others

Discussion in 'Research and Development' started by thegeek, Jan 24, 2019.

  1. thegeek

    thegeek Well-Known Member

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    1548351084999-1903530210.jpg

    Working on a smaller full unit pump in the 350 watt range. Output about 95% of the older BC pump. Seems promising because of the radically lower deck height. Hobbyking 2350 kv motor running on 4 LiFe through a 30 amp ESC.
     
    Last edited: Jan 25, 2019
  2. thegeek

    thegeek Well-Known Member

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    Durability might be a issue, but output looks good with 1/8 inch orifice and Glug Glug outlet.
     
  3. Kevin P.

    Kevin P. Well-Known Member

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    Only 95%? Sounds like you’re letting your standards slip
     
  4. thegeek

    thegeek Well-Known Member

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    Might be more. But bucket of water outside in 0 degree weather makes for short and video less tests.
     
  5. Anvil_x

    Anvil_x Well-Known Member

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    It's within a 0.05 deviation, so further testing might determine that it is in the same pump rate class. if it were 2.5 SD or more, then there would be a clear problem.
     
  6. thegeek

    thegeek Well-Known Member

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  7. thegeek

    thegeek Well-Known Member

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    20181223_102428.jpg
    Aluminum. Plastic. Bronze.
    Aluminum was used in this test.
     
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  8. Kevin P.

    Kevin P. Well-Known Member

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    Are you producing or just showing off?
     
  9. thegeek

    thegeek Well-Known Member

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    Maybe? I was thinking of just making it available from Shapeways. With the plastic body parts in file form, for 3d printing. Only issue is the shaft seal and aluminum top plate.

    I don't want to manufacture them, did that, knock-offs offend me.
     
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  10. daisycutter

    daisycutter Active Member

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  11. thegeek

    thegeek Well-Known Member

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    Parts count is probably 78% Asian, so the screaming souls may write in kanji!

    Having it in your hand makes it feel more like Toyota than Ford.
     
  12. Anvil_x

    Anvil_x Well-Known Member

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    wow. the video finally loaded. that thing is impressive.
     
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