(SLATE.com) -- The promise of home 3-D printing is that you can construct anything you want from the comfort and convenience of your own living room. For a group whose mission is to 3-D print a working pistol from scratch, however, that promise has been revoked.

Defense Distributed, a collective led by UT-Austin law student Cody Wilson, has raised $20,000 online in a bid to design and develop the world’s first entirely 3-D printed gun, which it calls the Wiki Weapon. If it succeeds, not only will it build its own prototype, it will share the design publicly, so that anyone around the world with a 3-D printer can print his own pistol. It’s sort of the opposite of “Don’t try this at home.”

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