If you’ve ever used an extruding 3D printer, you know that the resulting prints aren’t exactly smooth. At the Southackton hackerspace [James] and [Bracken] worked out a method of smoothing the parts ...

Part smoothing for 3D printed parts, especially parts printed in ABS, has been around for a while. The process of exposing an ABS part to acetone vapor turns even low-resolution prints into smooth, ...

I have been printing bungs for a Swiss ball – the big plastic exercise balls the size of a Space Hopper – from which the a friend lost the bung. It took three goes to get the size right – tapered fit, ...

3-D printers have progressed a lot in the past couple years, but still can't rival the output of injection-molding machines without violating expensive, patented post-processing techniques.