Sunday 3 March 2013

Harmonic Drive

Well as expected the first version of the drive failed the flex spline cracked.
Reasons for failure are
  • the bearing race is unreliable and dosen't run true causing the drive to miss steps
  • Flex spline the blue ABS is brittle will try with the yellow (its more elastic )
  • wave generator bearing were in fact only PLA bushes  they worked fine but the need to be 1mm taller

Next test will be with the new bearings
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2 comments:

  1. romeo4 March 2013 at 05:52

    hello peter could you put some video about your harmonic because i don't understand how he work
    me to i would like tu use a drill motor for my shoulder
    so nice job and thank you for ti show your work

    ReplyDelete
  2. Peter Heim4 March 2013 at 06:41

    I don't have any video but the guy that made the original
    has some http://www.thingiverse.com/thing:20177

    ReplyDelete

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