On Tue, Mar  8, 2016 at 12:32 (+0900), Michele Calgaro wrote:

> On 03/07/2016 08:37 PM, Thomas Maus wrote:
>> Here my batch of draft "trefoil knot" designs.
>> (Drafts -- meaning not necessarily ready for use, as all previous batches too)

> Great stuff Thomas.
> Treefoil_know_3TM looks gorgeous and 1TM looks good as well. 2TM is also to consider.
> Probably you and E. would have to work out the colors, but to me it looks a nice candidate.

I've been casually following this thread, so I prefix this comment
with "if a comment from me isn't really isn't welcome, that's OK".

The thing that comes to mind for me, if I want to combine some idea of
"three" with the idea of a gear is the rotor of a Wankel engine.
Those of you who don't know what this looks like might want to do a
search on "Wankel rotor", and see images like the one in
http://www.brandsoftheworld.com/logo/mazda-wankel-rotary

One might want to stylize this a bit by simplifying it and putting a T
in the middle.

Further, for those who are troubled about religious connections, to
the best of my knowledge there is no religion which worships Wankel
engines ;-)

And if someone is worried about copyright/patent issues, the similar
Reuleaux triangle (still with a gear inside) might look as good.

Cheers.
                                Jim