Harmonic Drive

di Alphie

File stampabili (7)

  • stl

    bearing_rotor_cap.stl

    109 Ko · 4 455 download

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  • stl

    bottom_shell.stl

    715 Ko · 4 425 download

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  • stl

    bearing_large.stl

    627 Ko · 4 436 download

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  • stl

    mini_bearing.stl

    1.1 Mo · 4 438 download

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  • stl

    flex_spline.stl

    3 Mo · 4 459 download

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  • stl

    circular_spline.stl

    231 Ko · 4 435 download

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  • stl

    bearing_rotor.stl

    217 Ko · 4 405 download

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Descrizione

My goal was to implement the principle of the harmonic drive into a sturdy solid module that can ultimately be used for making a robotic arm. This is my first prototype, and it works quite nicely.
http://youtu.be/D_neLbcW_BY
The circular spline has 84 teeth. The flex spline (80 teeth) has been printed with flexible PLA. All other parts were printed with regular PLA. The bearing balls are made of copper and are 3.2 mm in diameter in size.
The large bearing needs some work to get a good fit. It is currently too tight when 100% filled with bearing balls.
Print settings (ultimaker)
-0.1 mm @ 25-50mm/s
-nozzle (0.4 mm) temp 225 degC
-bed: 65 degC
-0.1 mm @ 25-90mm/s depending on structure (25 for gears)
Have Fun!

Tag

#drive #flexible #gearbox #Gear Reduction #harmonic #spline #stepper