We’ve seen acetone used to smooth out 3D printed objects before – either by dunking the parts in an acetone bath or brushing the solvent on – but these processes had mixed results.

3D printers build models in layers, which you can see if you look at a model closely. If you want a smoother, shinier surface, you can achieve injection mold-like quality with a little acetone.

Most people have switched over to printing in PLA these days, but one thing you might miss with this more forgiving plastic is vapor smoothing with acetone; a smoothed print doesn’t show layer ...

Resin printers are still toxic and messy. But with these two post-processing curing stations, the process of turning resin prints into usable objects is far less annoying.