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Example in Siemens NX9:
404600
..Nipsel..

Hi Leigh,
sorry for my bad english..
"axis distance" is Center distance
List of gear nomenclature - Wikipedia, the free encyclopedia
The center distance of your gear and the eccentricity has to...

Your gears will give you a axis distance of 12mm
( a= (m*(z2 - z1))/2 )

..Nipsel..

Hi Leigh,
i hope i understand right,
your "starting point" is your choosen gear
in this case you need to know the distance of the axis of your gears
-> this will give you the eccentricity!
then...

Hello Leigh,
the best "information" written in english language is the "bible" of NSU-Wankel engines: "Rotary Engine" by Kenichi Yamamoto.
A lot of literature is written in german because of the...

Hello Mach1n1st,
i'm interested in wankel designs
..Nipsel..

Hi Leigh,
you can use the well proofed epitrochoid-parameters of the 294 ccm engines:
R= 71mm e= 11,6 mm a=0,5 mm
I’ve made a Excel-sheet to check the parameters:
In C2: 11,6 (e); in C3: 71 (R)...