Native Rhinoceros 3D Plugin

Rhino has no constraints. This gives it some.

Rhinoceros 3D models the shape of a mechanism and knows nothing about how it moves — no constraint solver, no assembly mates, no mechanism automation. RhinoChelae adds them.

  • Real mechanism motion
  • Collision-aware
  • Drag or timeline
  • Native Rhino panel

Drag it — the linkage follows

The Case

A mechanism you can't move is just a drawing.

Rhino as it ships

No constraints, no mechanism.

  • No constraint solver and no assembly mates — parts have no relationship to each other
  • Motion is faked with copy, rotate and repeat: one pose at a time
  • Nothing stops two solids from occupying the same space
  • Change one arm and every position has to be rebuilt by hand
  • Interference found late — often on the shop floor
Rhino with RhinoChelae

Constrain it, then grab it.

  • Parts are tied to each other the way they are on the real machine
  • Drag any part and the whole assembly solves live
  • Linkages that close back on themselves work without special setup
  • Motion respects physical limits instead of passing through them
  • Edit the geometry; everything stays connected
Constraints

Constrain it, then drive it.

Mechanisms, not poses

Parts stay connected to each other, so moving one moves the whole assembly the way the real thing would.

Driven, not animated

Motors and struts do the driving. You set what pushes and how far — the mechanism works out every position in between.

Aware of solid matter

Motion stops where two parts meet, and parts can carry each other by shape alone — no joint required.

A lid on a gas strut

Push the strut open and the lid follows the arc it would follow in the workshop.

A crank through a full turn

Turn one arm and the rest of the linkage comes along, as it must.

Physical limits

Mechanisms that react to solid matter.

Six links and not one joint between them. The gold link is anchored; the rest are held by the shape of the metal alone, and follow when the free end is pulled.

A constraint says how parts are connected. Collision says where they cannot go. Both are needed before a simulated mechanism tells you anything about a real one.

So motion stops where two parts meet, parts can rest on and push each other with no joint between them at all, and an assembly cannot be pushed through itself. The mechanism runs into the same walls the built one will.

Motion & output

Animate it on a timeline — or just drag it.

Dragging is for exploring: grab a part and feel where the mechanism reaches and where it binds. The sequence editor is for showing: put several moves in order and let the whole thing run — and record it as a video when it looks right.

Wireframe
Shaded
Rendered

The clip looks like your viewport looks — wireframe for a review, rendered for a client — and it comes out smooth even when the display mode is a heavy one.

Interface

A Rhino panel, not a separate program.

One native Rhino tool panel — dock it where your other panels live, or float it on a second screen. No export, no round trip, no second application to learn: the mechanism lives in the same file as the geometry, and behaves like the rest of Rhino.

The RhinoChelae panel docked on the right side of Rhino, with the mechanism from this page listed in it.
The panel docked in Rhino 8, with the four-bar linkage from the top of this page listed in it.
Workflow

Built from what you have already drawn.

You do not model the mechanism again. The parts are your Rhino geometry and the axes are lines already in the model — you say what is joined to what, anchor the frame, and pull. Minutes, not an afternoon of rebuilding.

Who it's for

For anyone whose design has to move.

General-purpose mechanism design — the constraints do not care what industry the parts belong to.

  • Machine & equipment design
  • Furniture mechanisms
  • Marine equipment
  • Robotics & automation
  • Consumer product hinges
  • Architectural moving parts
Requirements

Technical details.

Platform
Windows — fully supported (Rhino 7 & 8). macOS — built to run on Rhino 8 for Mac; testing is still in progress, so full Mac support is not yet guaranteed.
Rhino Version
Rhino 7 & Rhino 8
Runtime
.NET Framework 4.8 (Rhino 7) & .NET 7 (Rhino 8, Windows & macOS)
Plugin type
Native Rhino plugin — runs independently, no Grasshopper required
Interface
One native Rhino tool panel — dockable or floating
Recording
MP4, in the display mode your viewport is already using
Persistence
Mechanisms are stored in the .3dm file and survive save, close and reopen
Licence
Subscription, monthly or yearly — every purchase carries a 14-day money-back guarantee
Pricing

From €15/month.

Monthly or annual subscription. 14-day money-back guarantee on every purchase.

RhinoChelae

From €15/month

All features included. Choose the cadence that fits you — €15/month, or €129/year and save 28%.

View pricing plans →

14-day money-back guarantee on every purchase.

Get in Touch

Questions before you buy?

If you design things that move, tell us about the mechanism you need it to handle. Happy to answer questions or take feature requests before you subscribe.

Based in Kuopio, Finland · Business ID 3600460-1