Requiring someone to provide evidence to back up a claim is not the same as taking a position that the claim isn’t true. This is the root component of the burden of proof and the stance many people have towards a god claim: they aren’t convinced the god exists due to a lack of evidence provided by the person claiming the god does exist. Until there’s actual evidence it’s rational and reasonable to withhold judgement.
The unicorn (or other mythological beings) are used as a similar case to illustrate to a theist that they have the same kind of attitude towards the idea of a unicorn existing as an atheist does to any gods. They’re both neat concepts, but without evidence showing they actually exist, they’re nothing more than an idea for stories and art.
I’m not hugely invested in the 3D printing world, but here’s my setup:
Printer: Creality Ender 3 pro v2 Filament: Mostly Matchbox Upgrades: just stiffer springs for the bed holder to help keep it level longer
Software: Cura for slicing FreeCAD for part design My kids also use Blender for making designs
As long as you check the bed leveling every so often (I don’t have an auto leveler) it does just fine. I make all kinds of technical parts and models along with other stuff for fun.
What can I say? It works and it’s a reasonably low maintenance setup.