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User: resident+machinist

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  1. Re:Well, how about.. on Homer Hickam Speaks Out For Fission Rockets · · Score: 1

    Well, you get more "kick" when you launch from the equator.

  2. Re: workability of Mg on Impressive Homemade Aluminum Cube Case · · Score: 2, Interesting

    nah, magnesium is great to machine. Cuts like butter, great finish, you just gotta keep the feeds up to make large, hard to ignite, chips. You may have to put it in an inert atmosphere to lase it. Large pieces (greater than 1/16 inch) are hard to ignite with conventional machining techniques (assuming normal cutting conditions). Can be welded with usual TIG torch (Tungsten Inert Gas). It's easier than aluminum to machine. Course, you could say I'm a professional...