Most AI 3D generators hand back a mesh. OwlCAD returns an editable parametric node tree, where every dimension is still a number you can change. Part of Pro.
Most text-to-3D tools return a surface: a mesh you can admire and barely change. OwlCAD’s parametric mode returns the recipe — a 30 mm plate with two M4 holes 20 mm apart, where 30 and 20 are still live numbers. Change one and the part rebuilds. Sculpted-mesh generation is a click away when the shape only has to look right.
AI generation is part of OwlCAD Pro · The editor itself is free
A 30mm bracket with two M4 holes 20mm apart
30 × 30 × 4 mm
⌀4.5 × 4 mm · x −10
⌀4.5 × 4 mm · x +10
Prompts in, parametric parts out, from the models Pro runs on your credits. Open any of them in the editor and change a dimension.
“A planetary gear set: module 1.5, a 12-tooth sun gear with three planet gears running inside a ring gear, everything 6 mm thick.”
“A 2x3 Gridfinity bin, regular height, to hold small parts in a drawer baseplate.”
“A 70x50 mm base plate 3 mm thick with four 6 mm tall hex standoffs (M3 bore) at the corners, inset 5 mm from each edge.”
“A 608 skate bearing, 8 mm bore, that prints in one piece and spins.”
“A simple toy rocket: a cylindrical body with a cone nose on top and three fins around the base, about 80 mm tall.”
“A 40 mm axial fan rotor with seven blades, bored for a 3 mm motor shaft.”
“A duct transition 60 mm tall that goes from a 40 mm round opening at the bottom to a 40 mm square one at the top.”
“A turned bud vase 90 mm tall with a narrow neck that flares out again at the rim.”
“A pair of meshing spur gears, module 2, one with 20 teeth and one with 40 teeth, 6 mm thick, correctly spaced so their teeth mesh.”
“A meshing pair of herringbone gears, module 1.5, 20 and 40 teeth, that stay aligned without thrust bearings.”
“A two-leaf hinge that prints in one piece and folds, about 60 mm wide.”
“A helical compression spring 30 mm long, about 12 mm across, that stands square on the plate.”
“A centrifugal blower wheel about 50 mm across for a small squirrel-cage fan, bored for a 5 mm shaft.”
“A frame and finger guard for an 80 mm case fan, with the standard mounting holes.”
“A keychain tag that says "Maya", with a hole to put a ring through.”
Real outputs, not mock-ups. Parametric parts and edits ran through the same prompt, validator and CAD kernel Pro uses; sculpted meshes are unedited apart from a lighter triangle count for the web. Every example opens in the editor with no account.
Text-to-3D is good at a starting point and bad at parts that have to fit, because a mesh has no dimensions left in it. Parametric generation returns primitives, booleans and transforms as ordinary OwlCAD nodes: the same ones you would have built by hand, with every number still editable.
Type a prompt — “a 30 mm bracket with two M4 holes 20 mm apart” — or start from an image. Parametric is the mode for parts that have to fit; sculpted mesh is there for shapes that only have to look right.
The result lands as ordinary parametric nodes. Click one and the property panel shows real numbers, so changing 20 mm to 26 mm rebuilds the part around it. Nothing is baked.
Fillet edges, hollow it, combine it with other shapes, and undo any of it: generation is a step in your parametric history, not a file you received. Or describe the change and let AI apply it as ordinary, undoable edits.
Run the print check, then export print-ready STL or 3MF for any slicer. A parametric result is made of real solids, so it exports as solid STEP for other CAD tools too.
OwlCAD runs a hosted MCP server, so Claude Code, Claude Desktop or Cursor can build a part on your account — authoring a real parametric tree, running it through the CAD kernel, rendering it to check its own work, and handing back a print-ready file plus a project you can open and edit. Part of Pro, and it spends no AI credits.
An instruction applied to the part on the plate, as ordinary edits you can undo. Each example passed every check its case defines.
“Drill four M4 clearance holes through this plate, one near each corner.”
“Add a separate housing for a 40 mm fan to sit inside, with a finger guard over the opening.”
Sculpted-mesh results from Tripo, reduced in triangle count for the web and otherwise untouched.
“A small owl figurine perched on a stack of three books, stylised, suitable for 3D printing”
“A chess knight piece shaped like a dragon head on a round base, suitable for 3D printing”
“A retro cartoon rocket ship desk ornament standing on three fins, suitable for 3D printing”
Open the editor free, then add Pro when you want AI generation.
A model with live dimensions, not a finished surface. Describe a part in plain text and OwlCAD’s parametric mode returns a real node tree of primitives, booleans and transforms you can re-dimension, exactly like the ones you would have built by hand. Sculpted-mesh models are there too for organic shapes, and both open directly in the editor.
A mesh is a fixed surface: thousands of triangles with no dimensions left in them, so “make that hole 6 mm” means sculpting it back by hand. A parametric result keeps the recipe: a 30 mm plate with two M4 holes 20 mm apart stays a 30 and a 20 you can type over, and the part rebuilds around the new value. Parametric is the mode for parts that have to fit; mesh generation is what you reach for when the shape only has to look right.
Two families, matched to the job: fast parametric models that return an editable node tree for mechanical parts, and detailed mesh models for organic and decorative shapes. You pick the model per generation and the credit cost scales with it, so the parametric runs that give you the most editable result are also the cheapest.
Yes, and not just by pushing vertices around. A parametric result arrives as ordinary editor nodes: select one and the property panel shows its real dimensions, so changing 20 mm to 26 mm rebuilds the part. The generation lands in your parametric history like any other step, so it undoes, redoes, and re-edits the same way. A sculpted mesh opens in the same full editor, where you can cut, combine, measure, and repair it.
Yes. Beyond generating from scratch, OwlCAD’s Modify with AI lets you select part of an existing model and describe a change — “make the walls 3 mm and add a lid” — and it applies as ordinary, fully undoable edits, not a regenerated blob.
The editor, import, and export are free. AI generation is part of OwlCAD Pro, which includes a monthly allotment of AI credits; free accounts can still model and export by hand, and credit top-up packs are available when you need more. Pro also lets you bring your own provider API key, and generation then runs on your own account with that provider and costs no OwlCAD credits at all.
Yes. Run the print check to confirm the model is watertight and fits your printer, then export print-ready STL or 3MF for any slicer. A parametric result is built from real solids, so it also exports as solid STEP for other CAD tools.