So to recap, when building the miter saw dust collection hood Use a 1-2 horsepower dust collector. Build the dust collection hood to seal all air gaps except the front doors. Install the doors in sliding grooves. Install the doors above the miter saw table and behind the fence. Test cut different size pieces and tweak the dust collection hood ... Nov 10, 2021 Effective control for a notorious sawdust creator. In addition to being versatile, accurate and virtually indispensable, my sliding miter saw also excels at spewing sawdust and resisting effective dust collection. I tried connecting a shop vacuum, but even when I remembered to turn it on, the vacuum only collected about half of the dust.