I made a circle slicer, Mainly used for cutting paper.

（Maximum circle diameter ≈30mm Minimum circle diameter ≈6mm）

installation instruction is shown in the picture.

update 2025/8/6:  To prevent slipping during cutting. Added grip, It is easier to cut. Add the bottom texture to increase friction. Or you can attach double-sided adhesive stickers at the bottom.

update file_v1.1 (grip、cutterparts_v1.1)

special tips:
I need a wallpaper blade, and break off two parts with plier (see picture. ) after inserting blade.(Cut your hand carefully)
You'd batter to fixed the four corners of the paper when cutting paper, and hold center axis cut circle.

( clockwise rotation to loosen anticlockwise rotation to tighten used for fixed dimension when adjustment dimension)

As the thickness of the blade may vary, if it is loose, apply glue.

Utility Knife 18mm Snap-off Blades 14 or 15 segments

Similar to what is shown in the figure above.

This model was printed using PLA. (fill in 10%，using a lower layer high (0.15/0.2mm)，no support)