>>6008793>temporarily wetting the cutting area/blade surfaceUsing water? If the saw is made of steel, use machine oil instead so it won't rust. This also helps lubricate the blade, giving you a better finish for the cut.
>a fine-toothed pull saw makes equally fine-grained dust, which is a problem.Haven't read the quote-train above to know what plastics you're dealing with, but if it's Styrene that is less than 2mm thick, you can get away using a Nichrome wire Styrofoam cutter. No dust, just fumes.
If you're trying to part simple, thin plastic shapes like plaplates (i.e. <2.5mm) you can use the score and snap method.
https://youtu.be/U3rwA3RMGxE 