# Key Points from IRC Discussion

• Focus Fusion researchers reported preliminary evidence that adding angular momentum to their fusion system increases plasmoid heat, potentially representing a significant advancement for fusion energy development.

• The MakerBot 3D printer business was discussed as having sold approximately 1,000 kits at $750 each across 14 batches, which participants viewed as modest commercial performance for this early desktop 3D printing venture.

• Participants explored alternative approaches to metal 3D printing, specifically using MIG welders as wire extruders in helium-filled chambers as a more accessible alternative to NASA's electron beam method, with estimated costs around $2,000 for a complete setup.

• Technical challenges of metal 3D printing were analyzed, including ventilation requirements, heat management, cooling pauses between layers, and the importance of high-quality welders with 100% duty cycle.

• A "gridbeam RepRap skunkworks project" was mentioned that aims to develop powder printing and more robust milling capabilities with an alternative movement configuration to standard RepRap designs.

• The group discussed software quality tools including clonedigger for identifying copied code and cyclomatic complexity analysis for evaluating code paths.

• Participants expressed skepticism about "The Internet of Things" concept, particularly questioning the value proposition of running Android on common household appliances like refrigerators and microwaves.