Turn practical ideas into CAD for 3D printing
Own a 3D printer but not years of CAD experience? Design brackets, jigs, organizers, enclosures, and replacement parts through guided questions and conversation.
Free trial credits included · No credit card required
Prompt2CAD gives 3D-printer owners a faster way to create custom functional parts without starting from a blank CAD workspace. Use guided setup to define the object, dimensions, interfaces, and material intent, or describe it directly in plain language. The agent builds real, dimensioned CAD geometry rather than a decorative polygon-soup mesh. Inspect the model, click parts to review their dimensions, and revise the same design through conversation: "make the slot 1mm wider", "move the mounting holes 5mm inward", or "add a chamfer to this edge." Export STL for slicer preparation and validation, or STEP for further tolerance, fit, and engineering work. Always check manifoldness, wall thickness, clearances, orientation, supports, and material-specific tolerances before printing.
Start with the part, not an empty CAD workspace
Choose Guided setup in a fresh project and Prompt2CAD will turn what the part must fit, hold, guide, or protect into a structured brief before generating geometry.
Choose a part family
Pick Mechanical parts, Products & enclosures, or Workshop & fabrication, then select the closest type of part.
Answer fit questions
Enter the envelope, mounting interfaces, holes, wall thickness, clearances, materials, and other dimensions you already know.
Describe unusual details
Use text fields for the hardware it must match, how it should attach, and any custom cutouts, ribs, bosses, or print constraints.
Generate, inspect, refine
Review the brief, generate the CAD model, inspect dimensions, and request fit changes before exporting for slicer validation.
How the CAD agent helps
Real CAD for practical parts
Create brackets, jigs, organizers, mounts, enclosures, and replacement parts with explicit dimensions you can inspect and revise — not a frozen decorative mesh.
Adjust fit through conversation
Ask to widen a slot, change a bore, move a hole pattern, thicken a wall, or add a chamfer. The agent updates the same design so you can check another iteration.
Inspect dimensions before export
Review the overall envelope and click individual parts to inspect their dimensions. Agent-authored controls let you tune key values when the model exposes them.
STL and STEP handoff
Export STL for preparation and validation in your slicer. Export STEP when you want to continue tolerance, fit, or engineering work in Fusion, FreeCAD, or SOLIDWORKS.
Brief the CAD agent
Include dimensions, constraints, materials, and intended use when you know them.
Parts list and CAD exports
Review a geometry-derived list of part IDs, dimensions, quantities, and materials, download it as CSV, or export the model for downstream CAD and prototyping. Verify production details before fabrication.