Precision B-Rep
OpenCascade geometry, constrained sketches, fillets, chamfers, shells and lofts.
Simple, affordable precision CAD
Powerful CAD.
Kept simple.
Build, subtract, cut, split, warp and test production-ready geometry without fighting the interface. Work online or offline across macOS, Windows and Linux.
Built for making, not menu hunting
From first solid to working mechanism.
IR Forge puts the tools designers use most in one calm workspace. Every dimension is in millimetres, every selected part is visible, and every operation stays close to the object you are building.
Direct editing
Move to exact coordinates, subtract one body from another for negative geometry, then cut, split and warp solids while keeping usable geometry.
Mechanical motion
Preview rotary, linear and screw motion, then inspect envelope collisions before manufacture.
Parametric assemblies
Build with mates, selectable joint axes, graphical fulcrums, limits, gear ratios and motor-driven motion.
AI-assisted changes
Describe an amendment in plain language. Secure server-side AI translates it into modelling actions.
Manufacturing exchange
Import STEP, STL, OBJ, images and Forge projects. Export production formats, hand off to an installed slicer and inspect validated G-code.
Live mechanical simulation
Real movement. A true fulcrum.
This is IR Forge itself—not another render of the imported models above. Watch the supplied high-fidelity Denso robot STL rotate around an explicitly assigned base fulcrum while Forge reports its position in real time.
IR Forge Print
From solid to a safer first layer.
Prepare a model without leaving the calm Forge workspace. Choose a printer and material, check manufacturability, inspect every layer and keep a deliberate human confirmation before a physical print begins.
Orient + analyse
Find a practical bed orientation, measure the print envelope and flag overhangs, mesh boundaries, wall issues and poor fit.
Preview every layer
Scrub through model slices or imported G-code, separating extrusion from travel moves before anything reaches a printer.
Know the job
Estimate layers, print time, filament length, material mass and cost using the selected printer and material profile.
Connect deliberately
Discover compatible local printers, validate the toolpath, then upload—or explicitly confirm upload and physical start.
Solid operations preserve manufacturing geometry and STEP workflows.
Your OpenAI key never enters the browser. Each action uses Forge AI Tokens.
Inspect fit, rotation, travel and collisions before manufacture.
Engineering power, clearly organised
Serious capability. A calm workspace.
Parametric foundations
Visible design history, constrained sketches and editable B-Rep features.
Assembly intelligence
Saved joints, motion limits, thread travel and live interference inspection.
Manufacturing confidence
Wall, clearance and watertight-solid checks, print estimates, support preview and toolpath validation.
Connected production
Local project files, installed-slicer handoff and guarded OctoPrint, Moonraker and Creality workflows.
Web + desktop CADTry the full tool for 7 days.
Choose your plan