I've been reading and experimenting with Acetone vapour smoothing on some printed ABS parts. My problem is that I need to selectively smoothen the printed parts which vapor smoothing doesn't allow. In particular, the cogs, whose sides I was trying to make smooth ended, up with smooth rounded tips, which was a disappointment.
An example of what I was trying to smoothen is would be something like this:
So how can I maintain fine details (like the cog tips in the image above) while applying smoothing methods to printed parts?