Obloid
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STL Cutter

Draw a pencil seam, stretch an elastic band, shape a rope, or place a cut plane. Add connectors sized to the cut, then download print-ready parts. For AI auto-split, use AI Model Splitter.

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Cut tools

Seam or plane

Cut tool

Draw a short stroke to wrap the model. Drag one point to change its two adjoining spans.

Your seams 0

Your seams will appear here.
Start with a short stroke on the model.

Connectors

Count 1

Pegs scale to the cut face and how thick each half is, so a stem snip or a thin cap stays printable. Auto clearance uses the PLA press-fit table plus hole-undersize compensation from the previous plane cutter.

How to split a model for 3D printing

  • Draw a short stroke to complete a surface loop. Line moves one handle and its adjoining spans; Band spreads your pull; Rope bends smoothly and can also be drawn manually. Plane follows the cursor until you click.
  • After a plane is placed, click it again for move arrows and rotation rings. Connectors default to one peg sized from the cut face and both half thicknesses — not too fat for a stem, not too deep for a thin cap. Socket clearance follows the researched PLA press-fit tables unless you override it with the slider.
  • Everything runs in the browser. Sign in is only required to download. Free accounts get 3 exports of this tool.

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