Request of additional technical data for filaments

Make it properly, not make it thicker.

An example:

I encountered this making spring “C” clips to hold rigid shells for nerf. When grabbing the shells during “panicked reloading” the clips would break. I made them thicker, they still broke and it became harder to remove the shells. I received feedback from a mechanical engineer who told me to make it thinner and put a fillet in a specific location to relieve the stress; this worked. And being thinner they were easier to remove, too.

This is application dependent but entirely true.