For sanding edges I clamp (or otherwise hold) the piece flat on a bench. Holding the ETS150 in one hand, with my other hand on top of the work piece, standing so that you will draw the sander towards you. This allows sanding with the pad vertically against the edge so that you are looking down on the edge of the sanding pad as the sander is moved along the edge. In this position it is easy to see that the pad is flat on the edge. And the large size of the ETS150 makes it easy to see any tilt that you may be introducing. The vertical position also helps prevent pressing too hard and flexing the pad (even though it should be the hard pad) around the edge.
Standing to the side allows drawing the sander towards you and the offhand on the surface helps keep everything smooth, steady and controlled motion.
[attachimg=1]
Hard to get the camera in the exact spot, but the sight line is directly down on the edge of the work piece and the sanding pad.
[attachimg=2]
Standing to the side allows drawing the sander towards you and the offhand on the surface helps keep everything smooth, steady and controlled motion.
[attachimg=1]
Hard to get the camera in the exact spot, but the sight line is directly down on the edge of the work piece and the sanding pad.
[attachimg=2]