This is probably futile, but I would like to remind All3n that "open source" comes from software, where it means simply that the source code is open (i.e. it's available, with permission to modify and redistribute it). In the case of hardware, the equivalent of source code are the design documents: engineering drawings, bills of materials, assembly instructions. Those are unambiguously open in this case: Bart is doing a better job than many open-source projects at making these available and keeping them up to date. Any help in sourcing the parts (e.g. identifying suppliers and part numbers for off-the-shelf items, or a supply of the custom-made parts), is just gravy. It's "open source", not "open sourcing". None of the parts have any secret about their making: the design is open. You could sit down and make, say, your gantry ends, working with Bart's drawings and reasonable skill in metal working. Or, if you did not have the tools or the skill, you could ask a friend, or hire a fabricator to make them for you -- in which case, of course, you'd have to pay. But you would not need to do any costly and time-consuming research and development, nor would you need engineering skill to design the machine and its parts, because Bart's already done that and shared the results with you, and everyone else. That's what "open source" means -- thank you, Bart! All3n, or anyone esle, could even make dozens of kits and sell them, although there's
etiquette about that.
Also, there seems to be quite a bit of fox-and-grapes action going on in your post, All3n.