IANAM, but here's an idea. Try drilling out the nozzle in steps, like the steps of a step drill. Then take a taper reamer to the hole to smooth it out. If you can't find the correct taper reamer in the catalog, there are places that custom-make taper reamers.
-p
At 05:58 AM 3/4/2003 -0600, John Carmack wrote:
http://www.armadilloaerospace.com/n.x/Armadillo/Home/News?news_id=195
Short update.
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