Like many projects, a combination of techniques yields the best result, and in this case we get to see 3d printing, sand casting, lost PLA casting, lathe turning, milling, and even some good old ...

Rapid prototyping uses three-dimensional (3D) computer aided design to quickly fabricate a part or, alternatively, a sand mold for casting a part from metal. Currently there are many limitations with ...

From there, a sand casting mold is built around the pattern ... settle for casting inanimate objects though; we’ve featured DIY casting processes for gears before, too. Video after the break.

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