Hey

I have been trying to understand how fillet works. Filleting the edge of simpler straight forward things like cubes etc.works perfectly- however as soon as I try to fillet more complex stuff I cant seem to get it to work at all.

A couple of question regarding fillets:


1. Would really appreciate if someone could briefly explain what the actual requirements are for creating a fillet/chamfer?

2. I attached a model where I cant get fillet to work. I tried to Join/Separate/Boolean union etc etc. before filleting/chamfering - nothing seem to help. If someone would have a look at it and see what Im doing wrong would be great.

3. I have read here on the forum that some people use additional software just for creating fillets. Is there any one in particular that works well together with MoI?