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"Volmer tooth belt transmission" generating ellipses at oval woodturning

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Generation of exact ellipses with a tooth belt transmission according to Johannes Volmer. The orange, rectangular plate can be shifted within the brown guides relative to the round yellow disc. So you continuously change the spacing between the blue and light-violet pulley. This allows to set the slenderness of the generated ellipses as you wish, without having to change any gears (see cardan circles).

Technical data
Video width in pixel 816
Video height in pixel 592
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ITUIlmenau TU
Administrative information
Persons inventor: Volmer, Johannes
author: Braune, Reinhard
Time of creation 2010