Nautilus gears with involute herringbone gearing - customizable
Description
! Be Sure To Have Downloaded The Newest Version! This Project Continues My Previous Project (Http://Www.Thingiverse.Com/Thing:769012) Which I Published With An Open Callenge In Mind. As It Transfers The Method I Used There From 2D To 3D, I Thought I'D Besser Set Up The Solution As A Separate Project. With Ordinary Fixed Pitch Gears, Herringbone Gearing Is Easily Achieved By Applying The Powerful Openscad Primitive 'Linear_Extrude' With A 'Twist' Argument To A 2D Object. When It Comes To A More Exotic Pitch Curve Like An Ellipse Or The Nautilus Spiral, This Does Not Produce The Desired Result And The 'Hard Way' Seems To Be Inevitable. So, What We Do Is: 'Roll A Toothed Herringbone Rack Along The Raw Nautilus Spiral Object' This Is My [First Print](Https://Www.Youtube.Com/Watch?V=Syb7Ng_Mm44&Feature=Youtu.Be) Notes: - To Get A Matching System Herringbone Direction Must Be Mirrored (Change Sign Of Parameter S) - With The 3D Method Cgal-Rendering (F6) Takes Significantly Longer (~30Min) - Click Brackets In And Glue Them To Any Surface With Gears Aligned. - For Further Instructions And Details Please Refer To Http://Www.Thingiverse.Com/Thing:769012
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