/diy/ - Do It Yourself

>>2515966
The reason you want to avoid tall and long straight thin walls on ABS is one you won't have given much thought until after you fail at it.
Consider pic related. Yes it's slightly underextruded, but also consider the effect that a shrinking layer has, then compound it over several dozens of layers. Think of each shrinking layer as a cable tensioning the layer beneath it, then a further tensioned cable is added on top of it. The more layers directly on top each other the worse it gets. The longer the straight path in the x-y plane the line is the worse it will be.
Compound the geometry, the height, the temperature gradient that will form, and the shrinkage of the material and this would be risky to build in a properly heated chamber.