A cleverly designed, original sanding tool for mounting long strips of sandpaper. After sanding, simply loosen the screw, pull out another section, trim off the worn portion, and you’re ready to continue working.

The interior can hold approximately a 1-meter-long roll of sandpaper (note that different grits and brands vary in thickness, affecting this length). Once the surface layer is worn down, you can easily pull out a fresh section from inside and discard the used one. Installing a new sandpaper roll is also very convenient.

The sandpaper holder features three rounded corners on its surface, suitable for smoothing rounded edges of parts—1.5 mm, 3 mm, and 5 mm radii.

This is the third version I’ve designed.

• Saves sandpaper

• Easy printing—single-disc printing with no supports

• Simple installation—entirely 3D-printed, requiring no glue or hardware

• Convenient sanding

• Available in multiple widths—15 mm, 25 mm, 40 mm, and 50 mm—compatible with corresponding-width sandpaper rolls; wider sandpaper can also be cut to size as needed

• Improved connection between the clamp and base ensures it won’t detach from the base even under pressure

After printing, please remove the two auxiliary supports marked by red circles in the image above—they do not directly contact the top, bottom, or inner surfaces, making them easy to take off.

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Assembly: