Here’s how to create custom wood filler for woodworking! AD Steps: 1. Sand -Sand wood with medium-grit sandpaper to remove the first layer of sawdust. 2. Vacuum -Set up your @dewalttough Dust Separator & Shop Vac begin vacuuming.-Use fine-grit sandpaper for finer sawdust. 3. Collect Sawdust -Collect your sawdust from your Dust Separator which collects 99.5% of debris-2 parts wood, 1 part wood glue. 4. Mix Sawdust and Glue -Combine sawdust with wood glue until it forms a thick, dough-like consist