Import Your Model
Start from the 3D files you already have, STL, OBJ, or other common formats.
Generate Mold Systems from Your 3D Models Automatically
Save material, move faster, and create production-ready mold systems with confidence.
Simple Workflow
From 3D model to ready-to-print mold in just a few clicks
Generate the Mold System
Automatically create adaptive mold boxes with splits, clamps, funnels, and channels.
Print, Place, and Pour
Print the parts, assemble the system, and pour the silicone with a fast, clean workflow.
Mold systems
The right mold system for every model
Choose a proven starting point, then adapt its splits, channels, bases, and production settings to your project.
General-purpose
Adapted Box
A balanced, material-efficient system for most models and everyday silicone mold production.
Slip Casting for Ceramics
Generate shape-matched funnels and feet, trim the top of your cast, and handle undercuts automatically. Create direct or silicone mold systems for producing plaster molds.
Tray Box
An open mold system for flat-backed parts and straightforward single-pour projects.
Multi-Part Silicone
An enclosed multi-part silicone system for forms that need controlled parting lines.
Inner Cavity
Automatically generate shape-adapted inner cores for hollow castings and vessel-like forms, no manual core modeling required.
Direct-Mold Open Base
Build a direct-printed mold with an open base for accessible pouring and extraction.
Direct-Mold Top Funnel
Create a direct-printed mold with an integrated top funnel and controlled fill path.
Printed Mold · Skin
Generate a direct-print mold and matching core for creating flexible skins over any 3D model—ideal for latex and silicone masks.
Fixture
Generate a custom fixture from your 3D model to hold parts securely for pad printing, soldering, painting, engraving, and other precision work.
Protective Shell
Create a fitted protective box that keeps delicate finished models and handmade pieces safe during shipping, storage, and organization.
Design capabilities
Production control without the modeling overhead
Solve the difficult preparation work inside one guided mold-making workflow.
Master Smart Seal
Automatically close gaps and open areas around the master, creating a clean, watertight connection with the mold base while helping prevent air traps.
Efficient Casting Boxes
Create a support box for the silicone mold without printing a completely new conventional mold box every time, making repeated production faster and more material-efficient.
Automatic Smart Base Key Placement
Automatically position secure base keys around unfixed masters, keeping them stable and correctly aligned during molding.
Clear Extraction
Automatically remove undercuts along the selected extraction direction for easier demolding and safer master removal in silicone and direct-printed molds.
Custom Branding
Add logos, custom text, or casting-volume information to molds and master models; place and scale them freely as engraved or raised details.
Unlimited Customizable Splits
Add, position, and rotate split planes as needed to control precisely how complex molds and mold boxes are divided.
Silicone & Casting Calculator
Calculate mold volume, estimated silicone requirements, and casting capacity before production, with optional engraving on the generated mold and casting box.
Automatic Air-Trap Support Pillars
Automatically detect trapped islands and place support pillars beneath them to prevent air traps and improve casting reliability.
Foundation
Create a solid, printable base directly on flat-bottomed master models. Set the base reference and threshold angle, then generate and join the foundation in one guided step.
Safe Mesh Processing
Repair, clean, and simplify difficult source geometry before turning it into reliable, manifold mold components.
Ready-to-Print STL Export
Export every generated mold-system component as a separate ready-to-print STL file in one action.
Extensive Configuration Options
Customize casting channels, winged or non-winged bases, sealing systems, alignment features, locking clamps, screw holes, tolerances, fit, pressure, size, and clearance.
Auxiliary Molding Tools
Speed up your workflow with a growing collection of smart utilities, including Convert to Planter, Master Hollower, Grid Tool for batch mold production, Casting Sprue Adder, and more.
Watch the workflow
See Moldboxer in action
Ready to build
Turn your next model into a production-ready mold
Try Moldboxer free for 7 days. Start with the free trial or compare plans when you are ready for regular production.
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Share workflows, get practical help, request features, and meet creators working with molds, casting, and 3D printing.