Fillet / smoothen issues!

Hello, I have an issue of trying to make a fillet / Smooth edge in this model!

Its a model of a transfer port in a 2-stroke competition motorcycle cylinder, which we are trying to reproduce and perfect for competition, and its killing me not to be able to do this through grasshopper, as the definition makes it possible to control the inlet and outlet angles for the cylinder, but we are missing this last part…

Does anyone have any ideas??

Simplyfied cylinder.3dm (182.9 KB)
cylinder_Simplyfied.gh (150.8 KB)


In Rhino there is the BlendSrf command.
In GH there is a Flexibility plugin component that does the same thing.
cylinder a.gh (29.9 KB)


Hello Leopold, I’m sorry i havn’t answered earlier - Got a baby a couple of weeks ago, so have been swamped!

Thank you so much! this is exactly what I need, beautifully simple and everything. Do you know if there is any way to control the strength/radius of the bend/fillet that comes between the shapes?

Best regards, Dennis