Sanders generates a large amount of dust, but here is a simple dust collector for drill press drum sanders. The idea is not new (Ex1, Ex2, Ex3), and the concept is simple enough that plans are unlikely to be needed. If the intake diameter is a bit larger than your largest drum sander, the sander can be partially below the surface. However, the intake seems strong enough that it works fine when the sander is raised above the surface.
Here scrap melamine hobby board was used for the top, bottom, and a couple of sides, providing a smooth hard surface to slide work, and dust to slide off. The vacuum attachment port was sold as a step reducer, and the step reduction portion was cut off. The vacuum port is a soft material, and the weight of the hose tends to distort the port. While it does function, a port made of harder material is desirable. Run the top and bottom pieces a little past the main frame. This gives a more stable work surfaces, but also provides an area to clamp to the drill press table, and helps to avoid the vacuum hose.
Simple helpful project. This setup can also help to shape aluminum and other soft metals, although they get warm fast. It might also work with small wire brushes, e.g., to clean up rusty steel.
Metal dust may be more harmful than wood dust. For grinders with odd shape vacuum ports, making an adapter is worthwhile.
