# Key Ideas from #hplusroadmap IRC Discussion

• Cochlear implants were analyzed in detail, revealing they have line-in ports for direct audio input but still cannot match natural hearing due to limitations in neural stimulation and inability to replicate the mechanical frequency-mapping properties of the basilar membrane.

• Octopart.com showed interest in the SKDB (skill/component database) project, with discussions about extracting structured data from electronic component datasheets using either mechanical turk workers or custom parsers to improve searchability.

• Several open-source CNC machine projects were discussed, including MIT's modular designs and a cement-based chassis approach that could enable inexpensive but capable machine construction.

• Participants debated whether machines can produce parts more precise than themselves, with some arguing that creative techniques like gearing down could allow smaller machines to build larger, more precise versions despite theoretical limitations.

• The group planned coordination for Sparkfun's "Free Day" promotion offering $100 of free merchandise per address, with some considering writing automated scraper programs to maximize their benefits.

• Low-cost RFID readers (~$25) and GPS receivers were identified as potentially valuable equipment for hackerspace projects, with specific product links shared among participants.

• A scientific paper on "nanodragsters" was shared (http://pubs.acs.org/doi/abs/10.1021/ol902312m), indicating interest in molecular machines or nanotechnology among the participants.