Awesome Robinson Foundry

Making Glowing Ninja Throwing Stars

Making Glowing Ninja Throwing Stars

Robinson Foundry created these not-so-stealthy shurikens which glow in the dark. He created the design on his computer, 3D-printed forms for sand casting, then filled the molds with aluminum bronze. After finishing, he added a mix of epoxy resin and strontium aluminate, which glows brightly after being exposed to light.

Casting Styrofoam Cups from Metal

Casting Styrofoam Cups from Metal

When it comes to cups, disposable styrofoam ones are some of the most wasteful. Robinson Foundry has a solution to the problem – instead of making them out of difficult-to-recycle polystyrene, cast them out of molten metal. We love those aluminum packing peanuts too.

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Solid Copper Sledgehammer

Solid Copper Sledgehammer

Given how soft copper is, it seems like an unlikely material for a sledgehammer. But it sure looks pretty, so that’s probably why Robinson Foundry decided to make one out of the eye-catching metal. To fabricate it, he first created a 3D-printed form for a sand mold, then filled it with molten copper and machined its final shape.

Maze Puzzle Bolt

Maze Puzzle Bolt

After casting a metal bolt with double threads, Robinson Foundry is back to show off another unusual bolt design. This oversize bolt has a maze thread pattern, which requires a complex sequence of moves to remove its nut. Like many of his other builds, he created ceramic molds over 3D prints, which he melted away.

Making a Bronze Measuring Cube

Making a Bronze Measuring Cube

Robinson Foundry crafted this useful brass kitchen gadget using a 3D printed measuring cube as a starting point. Like some of his other creations, he used the “Lost PLA” method to create a ceramic mold around the 3D print and then melted away the plastic. We wonder how accurate it is compared to the original.

Turning Bullet Casings Into Brass Coins

Turning Bullet Casings Into Brass Coins

If you’ve been to a firing range, you’ll see countless shell casings littering the ground. Seth over at Robinson Foundry wanted to put these to use, so he melted down the brass casings and turned them into custom coins. He created the shapes by 3D printing coin models, then placed them into a sand mold for casting.

Casting a Double-threaded Bolt

Casting a Double-threaded Bolt

Robinson Foundry shows how he made a double-threaded bolt using the lost PLA method he used to make that awesome bronze skull. The process involves dipping 3D-printed models in ceramic, firing then, then melting away the plastic with metal. The design was inspired by a bi-directional bolt machined by Oleg Pevtsov.

Making a Lost PLA Bronze Skull

Making a Lost PLA Bronze Skull

Robinson Foundry shows how he took a digital 3D model of a human skull and used it to create a cast bronze sculpture. The Lost PLA method starts by making a 3D-print, coating it with a ceramic material, kiln-firing it to harden it and melt away the plastic, then filling it with molten metal and eventually chipping away the casting.

Turning a 3D Print into a Brass Sculpture

Turning a 3D Print into a Brass Sculpture

3D printed objects are typically made out of plastic. But as Robinson Foundry shows us, these computer-generated pieces can be used to produce detailed castings for more substantial materials. In this case, he output a 3D print of a menacing alien emperor and used it to create a ceramic mold for an awesome brass sculpture.

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