3D STUDIO

Four interactive rigging tools

Knots, splices and loads as geometry you can turn, work and pull apart. Everything runs locally in your browser — nothing is uploaded and nothing is installed.

Educational models

These are teaching models with simplified geometry and physics. The figures they produce are indicative only. For any real operation, follow your equipment instructions, the manufacturer’s ratings and safe working practice.

INTERACTIVE

Knot Tying Simulator

Tie a bowline, figure-eight, clove hitch or sheet bend step by step on a live 3D rope.

3D Studio

INTERACTIVE

Rope Load Simulator

Hang a load on a line and watch tension, stretch and the point of failure.

3D Studio

INTERACTIVE

Splice Simulator

Work a three-strand eye splice or short splice, tuck by tuck.

3D Studio

INTERACTIVE

Rigging Load Visualizer

See where the load goes in a rig — vectors, angles and the weakest point.

3D Studio

∞ YOUR DEVICE

What this browser can do

Checked live, right now, in this page.

WebGL status

If WebGL is unavailable, every tool falls back to a static diagram rather than showing a blank box.

CHECKING

Performance budget

Each 3D page loads the library only when you open it, keeps the scene under 20,000 triangles, and reduces quality automatically if the frame rate drops below 30 fps for three seconds.

Small screens

On a phone the tools open in their static form and offer a button to load the full 3D version, so a mobile connection is not spent downloading a library to draw a decorative model.

Reduced motion

If your system asks for reduced motion, automatic rotation and animated transitions are switched off. Every tool still works; it just stops moving on its own.

∞ ALSO WORTH OPENING

Calculators and the database

Free tool

Rope Strength Calculator

Fibre→Breaking strength

Breaking strength, working load and stretch for a given fibre, diameter and duty.

Calculator

Free tool

Knot Strength Calculator

Line breaking strength→Strength at the knot

What a knot costs you, and what the line can safely hold once it is tied.

Calculator

Free tool

Rigging Load Calculator

Load weight→Tension per leg

Sling tension against angle — and why a wide angle multiplies the load so fast.

Calculator