Addressing your original point, I believe that splitting the community further will only weaken both communities.
As I wrote in my response to NEW! Vote for the Name of this Proposal. NOW!:
I want the name of this site to bring these groups together, not tear them apart.
I strongly believe that enthusiasts can learn much about precision and quality (for example) from the professional experts, but I also believe that the professionals can learn about cost reduction and novel approaches from enthusiast experts. The two communities are complementary, and that's where I want this site to go as I hope we are slowly managing with robotics.
I also explained there why I feel the current name is divisive and self contradictory.
Incidentally, there are already places where you can ask many questions related to problems with 3d printing. Electrical Engineering is strong on Arduino expertise and Robotics (where I am protem moderator) covers many of the non electronics questions you may want to ask.
In fact, I started this proposal, then the Desktop Manufacturing reboot, because I believe that the Robotics community was so fragmented that they would never be able to get a proposal into Beta. I thought that a more vertical site might have a better change at a strong, healthy community. Alas I found that this community was too small and too difficult to reach, so I had to slowly encourage the expansion of the remit of this proposal to get enough support to proceed.
Whilst I think it is a shame that my proposal was renamed, I understand and can appreciate that Stack Exchange management are attempting to improve the proposal, and I hope that they are prepared to listen to the arguments I have put forward.