Wow.......if ever there was a sledgehammer to crack a walnut the build in the link is it.
I'm all for innovative ideas but I think in this case the end product will take twice as long as the actual build of the machine per se.
I do realize that the molds are for reproducing other builds and so the cost will be recovered in part by anyone who wants to build the same design and to the same dimensions just don't deviate from the build plan if you have your own ideas.
I do get the impression that sometimes people go overboard in the quest for the ultimate never been achieved before dream build but that is beauty in the eye of the beholder.
Ian.