CatPin

CREATE THE CUTS OTHER TOOLS CAN’T

Draw freely or place points to build a precise polyline. Get near-complete control over complex shapes that Straight Cut and Curved Cut cannot create.

MAKE CLEAN CUTS RIGHT
WHERE YOU NEED THEM

Create a clean cut with a straight cutting plane. Move and rotate the plane, choose the connector type, and adjust the connector size, position and fit before you build the final parts.

CREATE CURVED CUTS
THAT FIT YOUR DESIGN

Create a curved cut that follows the form of your model. Add, move or remove control points to shape the curve more precisely. Choose the connector type and control its size, placement and fit before you build the final parts.

SEPARATE THE MODEL
EVEN AT TWO CONTACT POINTS

Create two cuts and process them together in one operation. Use Straight, Curved or Manual Cut in any combination. Separate a model from its base, or detach a part connected at two points, such as an arm joined to both the shoulder and the hip. See the full tutorial for more details.

DRAFT MODE:
FULL CONTROL.
FAST CHANGES.

The main CatPin workflow for full control. Every cut stays editable until you build the final parts.

• Create straight and curved cuts without changing the source model.
• Edit a cut after you place it.
• Move, rotate and scale connectors.
• Adjust connector width and height.
• Choose a cylindrical or trapezoidal connector.
• Set Connector Clearance between the pin and socket.
• Set Cut Gap between the cut faces for a better printed fit.
• Choose which side contains the pin.
• Keep Draft Cuts in the Blender file and edit them later.
• Make fast changes after a client request or a test print.
• Disable or remove cuts before the final build.

EASY MODE:
CUT AND BUILD FASTER

For light and medium-complexity models with a clear cutting plan.

• Draw a straight or curved cut.
• Choose the connector settings.
• Automatically create the cut, pin and socket.
• Receive final separated parts without an additional Draft confirmation step.

PLAN CUTS WITHOUT DAMAGE

Non-destructive Draft Mode with straight and custom curved cuts.

CONTROL HOW PINS AND SOCKETS FIT

Automatic pins and sockets with adjustable position, rotation, scale and clearance.

CHOOSE THE RIGHT CONNECTOR

Choose a cylindrical or trapezoidal connector, use a custom rigid connector, and select the pin side.

CHANGE CUTS BEFORE YOU COMMIT

Edit, disable or remove Draft Cuts before committing the model.

KEEP YOUR ORIGINAL SAFE

Keep the source mesh intact while preparing the final printable pieces.

EXPORT EVERY PART AT ONCE

Export all finished parts together to STL, OBJ or FBX.

BUILT FOR THE MODELS YOU PRINT

• Character and figurine artists
• Statue and bust creators
• STL model creators
• Resin and FDM printing workflows
• 3D-printing studios
• Large models for smaller printer beds
• Modular props and rigid multipart objects
• Artists who need editable cuts inside Blender

CHECK YOUR SETUP BEFORE YOU START

• Blender 4.2–5.2
• Windows, Linux and macOS
• English interface
• Closed manifold meshes required
• Millimeter-based workflow recommended
• Dimensions, Cut Gap and Clearance in mm
• Apply Scale and Rotation before cutting
• Tested up to approximately 3 million polygons