Smoothing 3D prints using acetone vapour

As you can easily tell in many photos, 3D printed parts have a certain look. They have a very matte finish with lines visible.

Using acetone and household supplies, you can add a nice shiny and smooth gloss to 3D prints using acetone vapour treatment! I’ve given this a try, and while the results aren’t producing perfection comparable to moulded plastic parts, the results are still very good.

Note: This only works with printers using ABS plastic filament. Acetone smoothing doesn’t work with PLA or other types.

Detailed directions for acetone vapour treatment are available on the RepRap Blog.

The first video below shows the acetone vapour treatment process, and the second video shows a “worst case scenario” in case you’re worried about the flammability of the acetone.

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