- A Barcelona neuro-engineering group (IBEC) is reportedly building a UV-laser scanning direct-lithography system, but no open schematics have yet been released; meanwhile, participants are exploring <$6 k UV-nanoimprint setups and a $27 365–395 nm UV-LED array from crimescene.com as low-cost photolithography exposure sources.

- Clean-room necessity for LED-based photolithography was debated: polymerization under blue light works in dusty air, yet a clean-room is still recommended for downstream bio-protocols, and the textbook “Fundamentals of Microfabrication” was repeatedly cited as essential reading.

- DIY microfluidics fabrication workflow was outlined—photolithography → RIE → spin coating (500–3000 rpm for 2–10 µm films)—with plans to build an open-source spin coater from surplus CD-ROM motors (26 k rpm) and 19th-century wooden centrifuge designs to avoid $1 k commercial units.

- GraphSynth 2.0 cross-platform debugging session resolved empty <double></double> tags and stale Windows binaries by hand-editing XML and aligning SVN revisions across machines, while Git housekeeping reminders included running “git update-server-info” after HTTP pushes and adding svn:ignore for build artifacts.

- Gitit, a Haskell-based wiki backed by Git (http://code.google.com/p/gitit/), was revisited as a potential knowledge base for the lab, already in use by haskell.org with custom configurations.

- A DIY book-scanner project (instructables.com and diybookscanner.org) was proposed as the first lab build to digitize key texts such as “Toward Replacement Parts for the Brain” and “Intro to Microfabrication,” with links shared to hard-to-find papers on toner-mediated lithography, microfluidic assembly blocks, and low-cost MEMS technologies.

- SparkFun’s $20–30 ultrasonic-motor driver boards (products 849 & 852) and the BeagleBoard (elinux.org/BeagleBoard) were highlighted as low-cost motion-control and embedded-compute options for lab automation, alongside Trumpf TruLaser 2025/2030 fiber-laser cutters and LiftMaster automation line for future metal-part prototyping.

- DIYbio list skepticism about revision control was countered with pointers to Software Carpentry (swc.scipy.org/lec/version.html) and the quip “a –80 °C freezer is a biohacker’s best RCS” was rebutted.