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How to model Worm Gears (Gears pt 7/?)

In this episode we're taking a look at how to model worm gears in Fusion360 for 3D printing. You can use these to transfer power between non-intersecting shafts, and with high gear ratios in a compact package. Primary downside is the low efficiency, and the resulting wear and heat buildup. In this presentation I show worm gears as a rack twisted into a helix, but you can also regard worm gears as simply a very extreme case of crossed helical gears. In such a view you must ensure that the normal modules and pressure angles of the gears match. Steel Stone showed how to do this fully parametrically here:    • Screw gear, and worm gear, involute a...   See my other gear videos here:    • All about gears   Find more of my work here: Instagram:   / ​   Website: https://www.creonova.nl/ Additional reading: https://khkgears.net/new/gear_knowled... https://www.kggear.co.jp/en/wp-conten... Timestamps: 0:00 Introduction to Worm Gears 0:40 Setting up parameters 1:05 Modelling the helix 2:38 Sketching the tooth profile 3:55 Tooth sweep and finishing worm 5:45 Showing off parametric model 6:21 Setting up helper components 8:35 Modelling the worm wheel 9:52 Computing helix & sweep angle 11:26 Finishing wheel; joints+motion link 13:02 Meshing inspection 14:07 3D printing pointers 14:54 Worm gears are inefficient 15:41 Self-locking worm gears 16:42 Wear in worm gears 17:35 Screw gear approach