Belt sanders remove a lot of material fast, and a lot of that material goes into the air unless captured. DeWalt did make a great belt sander with the typical dust capture bag, which would quickly fill up. A vacuum attachment is greatly preferred. While DeWalt offered a clever vacuum attachment that made use of the existing bag adapter, the assembly does not fit if using the belt sander on a bench stand, which is where the better dust collection would be a great use. Here we model in SolidWorks a new single piece adapter that goes directly from sander's port to a 1-1/4" vacuum hose. A second adapter is used to go from the smaller hose to 2-1/4" hose. While likely only of use to those with the no longer available DeWalt DW433, the part can be downloaded.

The improved vacuum dust collector


Another adapter get us to 2-1/4" hose


The 3D printed adapter


The 3D model


The original bag dust collector


The original vacuum dust collector