Scorpiomikey
Hey Chuck, when you were using your dremel as a lathe, how did you stop the plastic melting. Ive tried in the past and the friction just makes it too hot.
I know Chuck has a proper answer, but for me ( ) when doing this, I make sure not to press too hard or long in any one spot. Just lightly touch the file/sanding stick/blade, at the slowest speed your motor will turn, letting each pass remove a small amount.
The old "tortoise philosophy" - slow and steady works for me.
your results may vary