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HuPo Take-Off

by Benjamin, published

HuPo Take-Off by Benjamin Aug 15, 2013
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6932Views 1659Downloads Found in Hand Tools

Summary

Customizable hand crank device.
With a splined output shaft like on a tractor, and a curvy crank.


Applications

  • electric generator
  • blender/food processor
  • flour mill
  • coffee grinder
  • forge blower
  • drill press
  • ...
    In that order because metal casting seems good for drill press parts.

    Demos
    blender/food processor http://vimeo.com/72439493
    electric generator http://vimeo.com/73493818


    Updates
    See Instructions
     
     
     
    Thanks again Igor.

Instructions

Open in Customizer and play with the shape of your multi-purpose hand crank.

You need the diameter of the threaded rod and bearings you will use.
Heavily tested with 8mm rod and skate bearings.

Two outputs.
If you want to know your RPM you can add a Chris Palmer's shaft encoder, and organize contests:
http://reprap.org/wiki/Nophead%27s_Extruder_Tweaks
With the display of your choice: computer, LCD... LEDs for a binary one. Working version of both plugins already tested by the past (last pictures) but no time to put those things together right now.

An electric generator with a stepper motor, two diode bridges, and an adjustable voltage regulator (LM317) was previously done (pictures joined) and might come back on the horizontal output of the HuPo Take-Off, maybe this time with a cordless drill motor.
I didn't try yet to use the motor in the blender as a generator.
http://autonopedia.org/renewable-energy/generators/

Gear ratio 1:1 today, less to come.
 

August, 17 2013
Reduction added.

  • Number of teeth on gear A
  • Number of teeth on gear B
    and the ball bearings support is built for them to mesh
    Default settings gives ≈ 0.42:1 ratio.

September, 1 2013

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License

GNU - GPL
HuPo Take-Off by Benjamin is licensed under the GNU - GPL license.

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