Hi aRocket, you've been pretty quiet lately so I thought I would add something to the mix. I've been working for the past couple months on an open source liquid powered rocket , and I thought the list might be interested. - 3d printed GOX / IPA igniter <http://projectearendel.com/home/2015/01/igniter-testing/> up and running - All the igniter documentation <http://projectearendel.com/home/documentation/> (CAD / Arduino / P&ID) and some design codes are on the website - I'm doing a once a day Instagram (ProcectEarendel <http://instagram.com/projectearendel/>) for various rocket doodles and project related picture - And a Kickstarter <https://www.kickstarter.com/projects/2050946430/project-earendel> to try to build a suborbital test vehicle. Hope that you all find it interesting, after 10 years building rockets for other people, it is fun to do my own thing that I can share. Lloyd