# Key Points from #hplusroadmap IRC Discussions

• DIY mass spectrometry was explored, with participants discussing how to create simpler versions by repurposing components despite challenges of vacuum maintenance and ion optics, referencing Brian Hemond's paper on developing a miniature, low-cost mass spectrometer that suggested glass-blowing as a viable approach.

• Nickjohnson shared progress on his successfully funded "Tsunami" signal generator/analyzer Kickstarter project, including a redesign of the input frontend using a programmable logic chip (GreenPAK) to support higher frequency counting rates.

• Participants exchanged detailed techniques for SMD soldering of small components like QFN packages, recommending inexpensive hot air guns and methods using either solder paste with stencils or pre-tinning pads with flux for reflow.

• The Voltera circuit board prototyping machine was discussed alongside similar DIY electronics manufacturing tools, with conversation about creating such devices by modifying 3D printers to apply solder paste.

• DNA-based cryptography was examined, referencing work from LaBean Research Group at NC State University that uses DNA self-assembly for molecular computing applications, including a system encoding messages using DNA strands as one-time pads.

• Participants discussed repurposing and salvaging valuable components from lab equipment, including a tri-quad-pole mass spectrometer stored in a bathtub, with focus on recovering stainless steel chambers and electronics that could be resold to repair shops.