# Summary of #hplusroadmap IRC Log (April 18, 2010)

• A discussion about Fab@Home 2.0 mentioned upcoming features including .stl2 support and voxel printing capabilities, showing ongoing development in personal fabrication technology.

• Participants explored materials science questions, including whether microwave-absorbing coatings could be used like stealth aircraft paint, and noted that ferrofluid is radar absorbent and could be self-manufactured.

• There was a technical discussion about Hans Moravec's concept of "bush robots" (branching, fractal-like robots capable of scaling down to micro levels), with one participant claiming they might have a way to build them with current technology but lacked control mechanisms.

• A debate emerged about the timeline for bush robot technology, with one participant challenging Moravec's 50-year timeline as too conservative.

• A link was shared to a paper about hackerspaces (http://david.raison.lu/hackerspaces_online.pdf), indicating interest in community-based technology development spaces.

• Participants discussed 3D printing challenges, particularly the need for cheap or recyclable support materials to enable printing of complex hollow structures, which are stronger per weight due to their shape.