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#109 - wirelessfidelity
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(01/14/2013) [-]
curious question: then how does it go the other way? from this diagram, it will seem to rotating on with the vertical axis as the axis of rotation, and not a periodic swivel motion
#110 to #109 - backlists
Reply +1
(01/14/2013) [-]
The bottom gear acts as a cam, which causes oscillation.