Rhynocerous

He split the questions up into separate cubicles so they couldn't interact with each other.

It's absolutely hilarious that all of these Redditers are expecting some sort of class warfare between a personal chef and a retired dude.

Fuck that, I want the kitchen cabinet to do an AMA.

You are correct that 3D printed parts are highly anisotropic (this is what you mean by "not homogenous." The material properties are not the same in every direction) These parts fail due to fracture in the Z-axis because the polymer cannot fully "weld" together and there are voids between the rasters (the traces the nozzle prints.) The models that predict this failure are not perfect but the fracture strength can be obtained experimentally and there are several strengthening mechanisms being developed to mitigate the problem. It's the biggest issue limiting functional mechanical FDM parts.

If you shoot me a PM I can get you in touch with some of the research groups developing these techniques ranging from commercial to fundamental research. I am a mechanical engineer working in this field.

How the fuck it his guy's garbage upvoted? Is there some vote manipulation going on?