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I got to thinking the other day about how we do epoxy fillets for our fins, and I realized that I really had no justification (other than simple convenience and cosmetics) on why I make them one given size or another. Same for what I use to make the fillets.
I've seen all the build threads, and it seems like everyone has an idea that 'works' for them, but I've never seen any real answer or justification for any particular radius or material from an engineering standpoint.
Is a given radius of fillet more suitable to one size or rocket/fin than another?
Is there a point or no return at which a fillet is too wide/too narrow?
What do you do and why?
What material do you use for filleting?
Is it different from what you use for structural attachment?
I've seen all the build threads, and it seems like everyone has an idea that 'works' for them, but I've never seen any real answer or justification for any particular radius or material from an engineering standpoint.
Is a given radius of fillet more suitable to one size or rocket/fin than another?
Is there a point or no return at which a fillet is too wide/too narrow?
What do you do and why?
What material do you use for filleting?
Is it different from what you use for structural attachment?