# Key Technical and Conceptual Points from #hplusroadmap IRC

• A software system called SKDB was discussed that can convert between different CAD file formats (IGES to PNG, STL to POV), representing a more advanced alternative to Thingiverse and functioning as a distributed network for software and people.

• Participants shared and analyzed a paradoxical gear mechanism discovered in Russia that allows meshed gears to turn in the same direction, with debate about its mechanical principles and practical limitations due to friction.

• Campbell's PhD dissertation on automated design synthesis was examined for its approach to mechanical linkages, demonstrating interest in computational approaches to engineering design.

• Advanced defense technologies were analyzed, particularly Israeli "active defense" systems capable of intercepting incoming projectiles, with technical discussion about their capabilities against different threats.

• The economics of nuclear power generation was discussed in detail, with Generation III and IV plants costing approximately $1,500 per kilowatt electric and a target of $1,000/kWe to compete with natural gas alternatives.

• PythonOCC tools for 3D rendering were shared, including occray, a Python library that generates realistic images using Yafaray, showing the community's interest in open-source visualization tools.

• Participants troubleshooted RepRap 3D printer issues related to firmware and endstops, demonstrating the practical maker/DIY aspect of the transhumanist community.

• Research on metamaterials creating an "electromagnetic black hole" was shared (arxiv.org/abs/0910.2159), reflecting interest in cutting-edge physics applications.