Finishing sanders may operate with which motion?

Finishing sanders may operate with which motion?

• A. Circular
• B. Linear
• C. Spiral
• D. Orbital

Answer: (D)

Finishing sanders rely on an orbital motion to produce a smooth, even finish. The sanding pad moves in small circular paths as the drive mechanism offset causes it to trace an orbit. This motion blends scratches and reduces visible swirl or gouge marks, which is exactly what you want when you’re preparing a surface for finish. If the pad were simply spinning in a true circle, you’d see circular patterns that can be hard to hide with a final finish. A linear sander moves back and forth in straight lines, leaving linear scratches. A spiral motion isn’t the typical action used for fine finishing. The orbital path distributes wear across the surface and minimizes pattern marks, making it the best choice for finishing tasks.

Finishing sanders rely on an orbital motion to produce a smooth, even finish. The sanding pad moves in small circular paths as the drive mechanism offset causes it to trace an orbit. This motion blends scratches and reduces visible swirl or gouge marks, which is exactly what you want when you’re preparing a surface for finish.

If the pad were simply spinning in a true circle, you’d see circular patterns that can be hard to hide with a final finish. A linear sander moves back and forth in straight lines, leaving linear scratches. A spiral motion isn’t the typical action used for fine finishing. The orbital path distributes wear across the surface and minimizes pattern marks, making it the best choice for finishing tasks.