Parametric 3D CAD,
built for 3D printing.
Design, dimension, stress-test and slice your prints in one clean browser workspace — no installs, no plugins, no switching between five different apps.
Parametric from day one.
Every part you build is driven by named parameters and a feature timeline you can edit at any moment. Change a wall thickness, a fillet radius, or the diameter of a hole — the model rebuilds itself, and every downstream feature follows.
- Named parameters with simple math (pi, sqrt, min/max…)
- A live feature timeline with undo, edit, suppress, and reorder
- Multi-body documents so an enclosure and its lid stay in sync
Sketches that hold their shape.
Draw your outline, then nail it down with constraints — parallel, perpendicular, equal length, tangent, coincident, dimensions. A real geometric solver keeps everything in place as you tweak. When the sketch goes fully constrained, you know it won't drift.
- A complete library of geometric and dimensional constraints
- "Fully constrained" indicator so you always know where you stand
- Bound a sketch to a face and it trims itself to the silhouette
A radial menu instead of a tutorial.
Right-click anywhere and the right tools appear, grouped by what you're touching. Pick a face and you'll see sketches, references, fillets and chamfers. Pick an edge and the chamfer/fillet wheel comes up. The interface adapts to your selection so you can stay in flow.
Reusable parts you actually keep.
Build a screw hole, a heat-set insert pocket, a snap-fit, a USB-C cutout — once. Save it as a Smart Object with its own parameters, then drop it onto any face in any document. Update the original and every placement updates too.
- A growing library of common 3D-printing primitives
- Per-instance overrides (change the size of one hole, not all of them)
- Versioning so your old prints stay reproducible
Engineering drawings, automatically.
Flip to Specs mode and your part is already projected as front, top, right and an isometric view. Add sections, details, and dimensions in clicks; export the sheet as a PDF or SVG. Dimensions anchor to the geometry, so editing the model never breaks the drawing.
Will it survive the print? Now you can ask.
Most CAD tools assume your part is a solid block of material. We don't. Our printability analysis runs a real FEA solve on a shell-and-infill model of your part, accounting for walls, infill percentage and pattern. You see exactly where it'll bend, where it'll crack, and the worst-case load it can take.
- Print-aware stress map — calibrated to FDM, not aluminium
- Per-load factor of safety with plain-language verdicts
- Compare orientations side-by-side before you commit to a print
A slicer that knows your printer.
We bundle OrcaSlicer and wire it directly to your part. Pick your printer, your filament and your process preset once; from then on every slice uses the calibration you've already dialled in. Preview layers, infill and walls inside Kapy, then export G-code without touching another app.
- OrcaSlicer engine — the same one print enthusiasts already trust
- Per-printer calibration profiles, saved to your account
- Layer preview, infill and wall stats, then export G-code
Join the private beta.
We're opening Kapy CAD to a small group of 3D-printing makers first. Drop your email and we'll send you an invite as soon as a seat opens up.