Non-Circular Gear Theory

[ArtF]

hard to imagine how that rotates without shaft motion.. I dont doubt it does of course, its just hard to imagine. :)


Your good..

Art

[JustinO]

Nate, the additional axes make the math easier.

[Nate]

I printed up a pair, the meshing is not great, though I'll blame that on the print quality for now.  ... I'll probably print some more and see if I can make a working bevel gear turntable.

[ArtF]

Nate

For some reason they are zero bytes.. can you repost? Id like to see those...

Art

[Nate]

Let's try that again...

[ArtF]

Im not so sure Id call those non-circular bevels.. its almost as if they need their own term....

Nice work,
Art

[Nate]

Im not so sure Id call those non-circular bevels.. its almost as if they need their own term....

Yeah, there's a nice visual effect when using smooth curves instead of chevrons.  I tend to call them 'macaroon gears' because of the way they look when the pitch angle is small.

[Nate]

I revised it with less eccentricity, lower pitch, and larger pressure angle to mitigate print quality issues, and also fixed a rounding bug.  Now I have some gears that actually mesh.

[ArtF]

Nice. I really can see why you call them Macaroon gears... :)

Art

[BobL]

Nate;

These look crazy, also amazing to know they actually roll.. Nice.


Cheers
Bob
:)

[Nate]

You can print your own if you like, though the stl files are a bit messy.

http://www.pedantic.org/~nate/stls/twolobebevel.stl
http://www.pedantic.org/~nate/stls/threelobebevel.stl

My prints weren't perfect, but after a little wearing in they work pretty well.

[ArtF]

Ill have to give it a shot..

Art