I think what that person is saying is that in your example the left part would probably be more durable because it is flexible and that the part on the right is less durable but more rigid, basically saying your result is expected and makes sense if you are wanting durability over rigidity.
I think that the part that is unclear is that OP is using durability, rigidity, and strength as they are defined by material science not in common English and they way they differ in definition makes that comment make sense. I’m not a material scientist though so I could be wrong.
I hope that is correct and makes sense hah!
hemko@lemmy.dbzer0.com 8 months ago
The 1 walled hook has the infill resisting and pulling back as you try to straighten the hook. When it fails, some of the connections between infill and walls break, causing the hook to lose it’s form or original rigidity permanently. In the case of 2 walled hook, this damage should be less severe, making it more durable.
p1mrx@sh.itjust.works 8 months ago
Okay, but if my 2-wall hook bends into a straight line, then I don’t really care about the durability of that no-longer-hook-shaped object.
nilloc@discuss.tchncs.de 8 months ago
The 2 walled hook is closer to solid plastic too, which should give it the most bonded surface area per layer and make it stronger overall.
hemko@lemmy.dbzer0.com 8 months ago
The bond between layers or the walls is a lot weaker than just solid material.
nilloc@discuss.tchncs.de 8 months ago
Sure, but stronger than just infill to walls.