Huge drawing machine

This has to be one of the largest Polargraph’s I have seen.  They are pretty simple machines and the author did release “some” of the project files on thingiverse.  But not the motor mounts or CNC based plans (only 3D printer).

http://www.instructables.com/id/Large-Scale-Polargraph-Drawing-Machine-W-Retractab/

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