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Vrogy, whose cosplay work we featured recently, poured this Decepticon logo in aluminum from his home foundry. He’s also done an Autubot logo. I wonder where he got that idea? :)

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I write for MAKE, serve as Technical Editor for MAKE magazine, and develop original DIY content for Make: Projects.



  1. says:

    One thing I want to quickly mention, it looks like he has a gassy casting. There are degassing tablets that one can buy that will help to get those bubbles out. Other than that, awesome work!

  2. SKR says:

    My GF and I thought the exact same thing about the gassy casting when we first saw the image. Actually, she said, “that’s a gassy cast,” and I said, “ugh, he has a lot of filling to do.”

  3. Juan Garcia says:

    If he was going for high precision, then yes, some kind of degassing is going to be necessary for future work. Personally, I like the gritty, battle-damaged look of this piece. I say keep it as it is and use/wear it with pride.

    1. Rob pool says:

      i agree i like the way it looks with the grassy stuff.