# Summary of #hplusroadmap IRC Log (March 25, 2009)

• Discussion about manufacturing techniques, including injection molding for milling machines, with debate about whether injection-molded frames would provide sufficient accuracy without electronic compensation.

• Exploration of UV-reactive materials and printing techniques, including UV blacklight tattoo ink (BMX 1000), UV Sharpies, and the possibility of creating UV toner cartridges for laser printers to create masks for polymer exposure.

• Conversation about creating a maskless UV lithography system using piezoelectric actuators or hard drive components to control mirror movement for directing UV light, with considerations about resolution limitations (minimum feature size of 17 microns).

• Analysis of battery technology advancements, specifically LiFePO4 material with high lithium bulk mobility that can achieve full battery discharge in 10-20 seconds through a fast ion-conducting surface phase.

• Detailed discussion of head-mounted display (HMD) technologies, including MyVu Crystal (640x480 resolution), Teleglass T3-F (320x240), and their limitations for various applications, with particular focus on input methods and resolution constraints.

• Sharing of resources for DIY laser scanning systems using hard drive components, including links to tutorials like "Ten Dollar XY Laser Scanner" and other implementations that could be adapted for precision applications.