I have four orbital sanders, for it is these that I use most. There was one I bought that is portable, then you can change the sandpaper as you want. The other three are the machines I've made and are set vertically on a table. It is dificil to change the sandpaper.
The second was the very coarse, in fact it is a disc thinning down to the metal. It serves me very often to side my wood, but never quite sure to sand.
The third has a grain of 120 for the first sanding of my large pieces.
The last was a 400 grain for finishing.
I have another machine that I lost to the rolls of fabric (I make myself) and that allows me to "wax" my pieces.
Of course I have other more or less sanders gander such as portable vibrating rectangular vibrating a portable triangular, a portable tape and a fixed vertical strip.
On other systems of hand sanding, which consist of sandpaper mounted on wood morceaus, more or less and with various different grains. As a kind of small nail so as to go grind in small corners.
For some sanding, I also use the "balls" of my manufacturing or roller sanding liked.
