Standard parts library
45 types and 566 sizes: screws, nuts, washers, pins, circlips, bearings. Drag and drop them into the assembly.
ISO 4762ISO 4032Industrial 3D CAD · Windows
AI-assistedparametric CAD.Free.
Describe the part, and AI models it with you: Octopus 360 includes an MCP server that lets Claude create sketches, features and assemblies in your model. And the whole mechanical design workflow is there: parts, assemblies, standards-compliant drawings, assembly instructions.
Iso view · Assembly · 54 components
- 01Base
- 02Shoulder
- 03Arm
- 04Wrist
- 05Gripper
566standard sizes in the library
29MCP tools to drive the software with AI
30dof offline work
0€for the Standard licence, with no time limit
The design workflow
From sketch to assembly instructions.
Octopus 360 follows the logic of the major industrial CAD packages: you will feel at home from your very first part.
01/ SKETCH
Fully constrained sketches.
Lines, arcs, circles, slots and polygons, with relations added as you draw. The solver colours each entity by state: blue while it is still free, black once constrained, red when there is a conflict.
- Smart dimensions and “fully define”
- 3D sketches for piping and cables
- Dimensions driven by equations
Fully constrained sketch in Octopus 360
02/ FEATURES
A feature tree you can always edit.
Every feature is recorded in the tree: go back to any step and the part rebuilds. The exact B-rep kernel produces clean solids, ready for manufacturing.
- Extrude, revolve, loft, sweep, helix, shell
- Fillets, chamfers, draft, ribs, patterns
- ISO hole wizard: counterbores, countersinks, tapped holes
Parametric part and its feature tree
03/ ASSEMBLY
Assemblies that behave like the real machine.
Position components with mates, move them, check for interferences. The bill of materials, with masses, stays up to date on its own.
- Concentric, coincident, distance and angle mates
- Flexible components (springs) and animated screwing
- Weld beads and smart fasteners
Assembly of a 2 m industrial robot, 54 components
04/ DRAWING
ISO-standard drawings, linked to the model.
Projected views, sections and details update when the model changes. The Annotation tab has everything a complete detail drawing needs.
- ISO 6433 balloons, ISO 1101 tolerances, ISO 2553 welds
- Surface finish, hole and revision tables
- Vector PDF and SVG to scale, DXF
A3 drawing of a welded bracket
05/ INSTRUCTIONS
Assembly instructions, generated from the assembly.
Animate the assembly on a timeline, split it into steps, then generate the instructions: one page per step, with the view, motion arrows, balloons and the parts needed.
- Editable A4 / A3 pages, PDF export
- MP4 or WebM video up to 4K
- Live link: instructions follow design changes
Assembly instructions generated by Octopus Motion
Parametric
Change a dimension.
The whole model follows.
Dimensions can be driven by global variables and formulas. Change a value: the dependent features rebuild, and assemblies, drawings and instructions follow.
"L" = 80 → 112
Esquisse1 · Front plane
Boss.-Extru.1 · 10 mm
Hole ISO · Ø12 × 4
Fillet R6
Octopus Motion
Assembly instructions,
straight from the assembly.
Robot assembly animation on the Octopus Motion timeline
Instruction page: step, exploded view, arrows and parts needed
- Move and rotate components: each motion becomes an action on the timeline.
- Split the assembly into named steps, with their own cameras and views.
- “Generate instructions” creates one page per step: exploded view, arrows, balloons and parts needed.
- Export the instructions to PDF and the video to MP4 or WebM, up to 4K.
- Assembly changed? The animation and instructions follow: they stay linked to the model.
STEP/ FEATURE RECOGNITION
Import a STEP file. Get the feature tree back.
A STEP file is just a frozen solid. Octopus 360 reads it and rebuilds a parametric tree: sketches, bosses, cuts, holes, fillets, chamfers, revolves. It then checks that the rebuilt part is identical to the original.
- Turned and prismatic parts, gears, bent tubes
- Automatic volume and surface check
- Then edit the part as if you had designed it
Gear imported from STEP, feature tree rebuilt
Complete annotations
Dimensions, geometric tolerancing, weld symbols, surface finish and a linked bill of materials.
ISO 1101ISO 2553Evaluate
Mass properties, measure, live section, draft analysis, curvature and zebra stripes.
Equations
Global variables and formulas: change one dimension and everything that depends on it follows.
Realistic rendering
HDR studio, physical materials and soft shadows to present your products.
Exchange formats
STEP import and export, STL and OBJ export, DXF import and export, PNG images.
STEPDXFAI-assisted CAD
Model by talking
to an AI.
Octopus 360 ships with its own MCP (Model Context Protocol) server. An assistant such as Claude can create sketches and features, assemble, measure and export, while you follow and correct the model on screen. The ✦ Claude chat is built into the software: nothing else to install.
You stay in control: everything the AI does is a normal feature in the tree, which you edit like any other.
✦ Claude drives Octopus 360
Create a 120 × 80 × 10 plate with four Ø8 holes 12 mm from the edges, then an R4 fillet on the top edges.
octopus_esquisse rectangle 120 × 80, top plane
octopus_extrusion 10 mm
octopus_percage 4 × Ø8 · through all
octopus_conge R4 · 4 edges
Done: the plate has 4 features in the tree. Mass in steel: 0.71 kg. Shall I make a drawing?
Pricing
Free to design.
Pro to manage.
Octopus 360 is not open source: it is free proprietary software. A Google account is all you need for the Standard licence.
Standard
0 €forever
With a Google account, no credit card.
- All modelling: sketches, parts, assemblies, drawings
- Octopus Motion: animations and assembly instructions
- STEP import / export and feature recognition
- AI-assisted CAD: built-in MCP server and ✦ Claude chat
- Personal and professional use
- Automatic updates, 30 days offline
Pro
PDMpaid
Product data management for teams.
- Everything in Standard
- PDM: shared design-file vault
- Document versions, revisions and history
- Live references between parts, assemblies and drawings
- Teamwork: check-out, per-project permissions
Download
Your next part starts here.
Install Octopus 360, sign in with Google on first launch, and start designing. Updates then install themselves.