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Joerg Torhoff's $50 Rock Tumbler Amazingly Polishes Metal Composite 3D Printed Objects - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
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Free STL file Oversized large pulley for National Geographic rock tumbler・3D printing idea to download・Cults
![Joerg Torhoff's $50 Rock Tumbler Amazingly Polishes Metal Composite 3D Printed Objects - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing Joerg Torhoff's $50 Rock Tumbler Amazingly Polishes Metal Composite 3D Printed Objects - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing](https://3dprint.com/wp-content/uploads/2015/07/tumblerfeatured.png)
Joerg Torhoff's $50 Rock Tumbler Amazingly Polishes Metal Composite 3D Printed Objects - 3DPrint.com | The Voice of 3D Printing / Additive Manufacturing
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