[AdamHeard]

Originally Posted by Greg Woelki

I was under the impression that the smaller the radius, the higher the stress concentrations, like so: https://drive.google.com/file/d/0B4u...it?usp=sharing

I'll try doing the same thing with triangular cut outs though. Perhaps it also depends on how it is loaded.

Ah, yes. You make a good point but that isn't an argument against triangular pocketing, but rather an argument against too small of a radius.

Ideally triangular pocketing has webs sticking out in most directions of loading, so stress flows nicely and never has to take corners anyway. Isogrid is a really cool optimized pattern everyone should look up.