Hi aRocket - A few months back I inquired about the possibility of posting an igniter online as open source. After some consideration I decided to follow up with the State Department to get an advisory opinion as to whether this would/wouldn’t violate US ITAR regulations. The process took some time but this past week I received an ‘ok’ to post online. The scope of the advisory opinion is fairly narrow in that it applies only to non-flyable less than 200 newton engines (since this is what I asked for) but the engines I build currently fit into this category so I’m happy for now. I’ve since gone ahead and posted STL files on Github (https://github.com/gNSortino/OSREngines/tree/master/Engines/2014-GOXEthanolRegenEngine) under a creative commons license. So feel free to use, study, modify, etc... I hadn’t thought of using GitHub to post any non-code resources but after seeing how nicely the PSAS site was laid out I decided it was better at version controlling things like CAD and design files then a Wiki or WordPress site. I’ve also just sent my v2 regen to the printers and am planning on testing that this spring. Once I’ve had a chance to test I’ll post that info as well. Kind Regards, Graham