# Key Ideas from #hplusroadmap IRC Discussions

• Hackerspaces like Cincinnati's Hive13 are developing various CNC projects including MakerBot, Mendel RepRap, and custom CNC routers, representing the practical implementation of maker technologies.

• SKDB was discussed as an "instructables-killer" project addressing self-replication challenges by algorithmically determining tool dependencies, rather than randomly selecting components.

• The fundamental challenge of self-replication was analyzed through the lens of Freitas' work: adding new items to a self-replication design can import unknown dependencies, creating potentially unbounded requirement chains.

• Alternative metal fabrication methods for self-replicating systems were explored, including thermal spraying, electroplating, and electrochemical etching as alternatives to traditional smelting and casting.

• A participant is developing a printable stepper motor for RepRap 3D printers, demonstrating efforts to increase the self-replication capabilities of existing maker technologies.

• KrisC introduced a SMIILE project (Space Migration, Intelligence Increase, and Life Extension) featuring a dual database system with objective methods and subjective user ratings, integrating social networking, scheduling, local trade, nutrition management, and 3D food printing.

• DIYbio emerged as a topic of interest, referencing professional geneticist Kay Aull's home genetic experiments and discussing how hospital surplus equipment can be repurposed for affordable DIY science.