February 16, 2026
Description
Tired of fumbling with tape dispensers or using your teeth? Slip this Parametric Tape Cutter Ring onto your finger and cut tape with a simple twist! Designed entirely in OpenSCAD, every dimension is fully customizable to fit your finger and cutting needs.
The ring features a comfort-rounded body with sharp sawtooth cutting blades that sit flush on the outer surface — designed to slice through packing tape, masking tape, and more with ease.
Adjust these parameters in the OpenSCAD Customizer to make it yours:
| Parameter | Description | Default | Range |
|---|---|---|---|
| ring_diameter | Inner diameter (mm). US Size 9 ≈ 19mm, Size 10 ≈ 19.8mm, Size 11 ≈ 20.6mm | 20 | 15–25 |
| ring_width | Width/height of the ring band (mm) | 10 | 5–20 |
| ring_thickness | Wall thickness of the ring (mm) | 1.5 | 1.0–3.0 |
| Parameter | Description | Default | Range |
|---|---|---|---|
| blade_protrusion | How far the blades stick out from the ring surface (mm) | 2 | 1–5 |
| blade_count | Number of cutting teeth around the ring | 5 | 1–10 |
| blade_thickness | Thickness/width of each blade (mm) | 1.5 | 0.5–3.0 |
| Setting | Recommendation |
|---|---|
| Material | PETG or PLA+ (PETG preferred for durability and flexibility) |
| Layer Height | 0.12–0.16mm (finer layers = sharper blade tips) |
| Infill | 80–100% (ring needs to be solid for strength) |
| Supports | Not required |
| Orientation | Print upright (ring standing on its edge) for best blade quality |
| Post-Processing | Lightly sand the blade tips for extra sharpness |
⚠️ Safety Note: The printed blades can be sharp enough to cut skin. Handle with care!
License:
MakerWorld Exclusive License