[v2 dev] Milestone 3 - Lighting

This is excellent documentation, @cpixip. Thank you for all the time it took to walk us through the design choices you made. I think this is going to be extremely helpful when we get to lighting design in early 2020.

Not counting the 3D printing, what would you estimate the production cost to be in terms of materials and time to assemble?

Also, that software you are using looks great. Did you find that somewhere or write it yourself?