That's so cool! Will that work for your clock gear ratio that needs to
change from 4:1 to 5:1 over time? I imagine you could apply the same
principle and put the spiral gear on a disk or something kinda like a
record. Gears like that would be kinda hard to make without something like
a 3D printer.
-Joachim
On Feb 24, 2016 7:23 PM, "Andrew C." <soshumasamune@xxxxxxxxx> wrote:
I found this while doing laundry totally by accident, looking up gear
hobbing CNCs.
It's not often I see something that not only impresses me, but I also
cannot figure
how it's physically possible, but this is one of those.
For 3D printer folk, this guy's page would be a field day. He creates more
exotic forms
of 3D printed gearing and puzzles than I've seen anywhere, including
things I thought were impossible- like non-rational golden ratio gears. And
1 billion to one reduction gears the size
of a wrist bangle.
Check this out, it might take a while to get it, but the gear is basically
a continuous
spiral, not a nomal shape, it's long to make it not a whole number of
teeth in one diameter.
So you can have 10.47 teeth per revolution, spiralled like a worm gear,
but acts like a
spur gear. It revolves with the golden ratio itself.
https://www.youtube.com/watch?v=e6epepGdnmg
If I keep blowing my mind up like this this week, I'll forget what reality
really is!
-Andrew
