Printing 5000 Pounds

A few years ago, I designed a regen cooled thrust chamber in the 5000 pound thrust class.   Lawrence Livermore National Lab printed the design shown below and I outfitted it for testing.

You can check out additional photos here:

https://manufacturing.llnl.gov/additive-manufacturing/metal-additive-manufacturing

PR56 Igniter Open Source

Just a note that a few months back I posted "the source" for the PR56 igniter that I've tested with GOX/kerosene.

There is a dimensioned drawing of the igniter body as well as a detailed write-up that includes parts lists and operational notes.  If you make one or use it as inspiration, I'd love to hear about it via email or comment.

I'm planning on revitalizing the blog over the next few weeks, so stay tuned.