MouldCast Studio

Mold Generator for Blender

MouldCast Studio converts a 3D object into a clean, printable mold system ready for

casting workflows such as ceramics, resin, plaster, wax, or silicone.

The tool automatically generates mold blocks, separation parts, alignment keys, and

pouring holes while keeping the system fully procedural and editable.

1. Install the Add-on

1. Download the

MouldCast Studio .zip file.

Blender.

3. Go to Edit → Preferences → Add-ons.

4. Click Install...

5. Select the downloaded .zip file.

6. Enable MouldCast Studio in the add-on list.

2. Open

Once installed, the MouldCast Studio panel will appear in the

Sidebar (N panel).

2. Prepare Your Model

Before generating a mold, ensure the object is properly prepared.

Recommended setup:

real-world scale

watertight (manifold)

outward

• The model should be at

• The mesh should be

• Normals should face

• Avoid internal geometry or loose parts

The object should represent the

final shape of the piece to be cast.

3. Open the Add-on Panel

1. Select your object in the viewport.

Sidebar (press N).

3. Go to the MouldCast Studio tab.

2. Open the

Select your 3d model in the dropdown or with the eye-dropper.This operation will:

• center the object for mold generation

• apply transforms (location, rotation, scale)

• prepare the mesh for procedural processing

This ensures the mold system is generated correctly.

4. Generate the Mold

Press

Generate.

The add-on will automatically:

• build the mold structure around the object

• divide it into mold parts

• generate mold shells

• apply the procedural modifier system

The mold is now ready to be adjusted.

5. Customize the Mold

The generated mold can be adjusted using the

modifier controls.

These parameters allow you to modify the mold structure without rebuilding it.

Every time one of these controls is changed, the Mold regenerates,

so make one change at a time and wait. If the system seems slow, you can use the

BYPASS MODE wich will bypass the boolean operations for making the overall shaping

and placement of KEYS lighter and responsive. Be sure to uncheck Bypass Mode before

you export.

See the

Controls section below for details.

6. Export the Mold

Once you are satisfied with the mold setup, press

Export.

This will:

• separate the mold pieces into individual objects

• apply the procedural geometry

• export each mold part as

.STL files

These files are ready for 3D printing or fabrication.Controls Overview

Geometry

MODEL Object

MOULD Parts

SEPARATE (view)

BYPASS MODE

Source object used to generate the mold.

Number of mold sections created around the object.

Visually spreads the mold parts for inspection.

Temporarily disables the mold system while keeping the

object visible. Use this to generate the basic shape if you

system runs slow.

Mould

MOULD Height

MOULD Width

MOULD Crop

MOULD Rounded

Tolerance Gap

Vertical size of the mold block.

Horizontal size of the mold block.

Reduces excess mold volume around the

object.

Adds rounded edges to the mold block.

Adds clearance between mold parts for easy

separation.

Top Hole (Pouring Hole)

TOP HOLE Radius

TOP HOLE Depth

Size of the pouring

hole.

Depth of the pouring

channel.

Base

BASE Radius Top

BASE Height Add

BASE Radius Bottom

Radius of the upper base

section.

Extra height added to the

base.

Radius of the lower base

section.Key Knobs (Alignment Keys)

Enables alignment keys between

mold parts.

Knob Wall Resolution Smoothness of the alignment knobs.

KEY Circles Size

Diameter of the alignment key circles.

KEYS Depth

Depth of the alignment keys.

KEYS Offset W

Horizontal placement of keys.

KEYS Offset H

Vertical placement of keys.

KEY KNOBS

Typical Applications

MouldCast Studio is useful for:

• ceramic slip casting

• candle molds

• resin casting

• plaster molds

• silicone master molds

• craft prototyping

• small product manufacturing

Recommended Workflow

For best results:

realistic scale objects

manifold

2–4 mold parts for most objects

• use

• ensure meshes are

• use

• Enable Bypass Mode if system is slow

• test with

before export

SEPARATE (view)