is the blender for failed test models?

"you have failed me for the first time for the last time, Hobbs, take him away!"

lol love the disclaimer in there. TBH I say do what you can if it works it works if not then try something else... print the parts you want to stress test out of ABS and if they can take it then by all means show the world how you did it.. of failing that just show that it can do it, that'll teach those doubters :P

That said printable nuts and bolts seem like a weak idea... they are cheap enough and easily attainable pretty much anywhere for next to nothing, its times like this i remember an old saying about things that aren't broken :P
But I definately aprove of trying to make as much as possible self replicating, so bonus points for that :P