Sandpaper

I've been toying with this idea for some time now.

Proffesionals use sandpaper by the bulk. You should not use it for too long because when it gets full with dust or when it gets blunt, it takes longer to achieve the right action. So, the pro's take another piece very often.

I shake or brush the dust out and use it untill it is really blunted. So yes this saves on sandpaper but not on time because with blunt sandpaper it takes longer to achieve the same result. Sandpaper is expensive.

Finishing sanders can be connected to vacuum cleaners so that it doesn't get fiiled with dustparticles as quickly. And an added bonus is that the finishing sander is sucking itself on to the wood, giving it better functioning.

But still I see room for improvement.

This new finishing sander has artificial diamond needles about a millimeter long sticking out from below. Lets say about four per square millimeter. Or more or less and thicker or thinner, depending on how rough or how fine you want the sander to do it's job. In between them are tiny holes through which the finishing sander blows air to get rid of the dust. This is done either by a connection to a pump or by a little pump that works of the motor.

The normal holes in the bottom to suck away the dust remain. And they suck a little harder than the blow holes blow.

Such a machine would be expensive, but you would never have to buy sandpaper again.