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Thread: Devastator's Ongoing Solsylva Build

  1. #157
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    Default Re: Devastator's Ongoing Solsylva Build

    A good article in Popular Mechanics about the US Navy ramjet missile I machined the fin cans for on the Solsylva. Navy Builds Ramjet Missile with Model Rocket Engines and a Credit Card

    Attached Thumbnails Attached Thumbnails Devastator's Ongoing Solsylva Build-us-navy-fin-cans-jpg  


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    So I am at college and at my university I have unlimited free access to materials, most of which is a ton of aluminum stock and steel, as well as water jet, CNC milling machines and very large gantry. This gave me the idea that I can upgrade my machine at home for no cost other than my time, so my question is what should I upgrade on my solsylva first, mostly to minimize backlash on all axis? Or I could probabaly build a completely new machine but that would take too much of my time making the parts.



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    Default Re: Devastator's Ongoing Solsylva Build

    Quote Originally Posted by jlowe1224 View Post
    So I am at college and at my university I have unlimited free access to materials, most of which is a ton of aluminum stock and steel, as well as water jet, CNC milling machines and very large gantry. This gave me the idea that I can upgrade my machine at home for no cost other than my time, so my question is what should I upgrade on my solsylva first, mostly to minimize backlash on all axis? Or I could probabaly build a completely new machine but that would take too much of my time making the parts.
    If you have access to that, I'd say go for it. Solsylva is only for people with no money or resources, IMO.



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    Default Re: Devastator's Ongoing Solsylva Build

    A 7075 aluminum rocket fin with bevels and polish. Finish pass was 1/8" ballnose with 5% stepover.

    Attached Thumbnails Attached Thumbnails Devastator's Ongoing Solsylva Build-fin2-jpg   Devastator's Ongoing Solsylva Build-fin1-jpg  


  5. #161
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    Default Re: Devastator's Ongoing Solsylva Build

    That's a really nice finish!

    What's the dimension of this fin?

    Is the 7075 really harder to machine than 6061?



  6. #162
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    Default Re: Devastator's Ongoing Solsylva Build

    Thank you!

    Machined area of 6" X 13". 7075 is just slightly harder than 6061, but machines cleaner because it is not as soft. I like the way it polishes too.



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