Enginerig is a desktop application for engineering analysis of camera rigs.
It helps filmmakers, photographers, and rig builders calculate:
- total rig weight
- center of mass
- perceived operator load
- rig imbalance
- load on mounting points and joints
The program allows you to visually build a rig scheme and instantly see how weight distribution affects the operator and equipment.
This tool is useful for anyone asking questions like:
- How to calculate load on a camera rig?
- How to calculate center of mass of a camera setup?
- How to balance a handheld camera rig?
- How to estimate operator fatigue from a camera rig?
- How much weight can a quick-release or joint handle?
Enginerig provides a visual engineering model to answer these questions.
Enginerig analyzes filming rigs such as:
- camera + lens setups
- monopod rigs
- handheld rigs
- documentary shooting rigs
- custom camera mounting systems
The program calculates:
- Total rig mass
- Center of mass
- Rig imbalance
- Operator perceived weight
- Load on nodes (mounts, joints, quick releases)
- Estimated operator working time
The rig is built interactively on a canvas using points, connectors and nodes.
Create a rig structure by placing:
- Points — cameras, handles, accessories
- Connectors — rods, arms, monopods
- Nodes — joints, quick releases, mounts
You can drag elements and instantly see how the rig balance changes.
The software calculates the center of mass relative to the support point.
This helps determine:
- whether the rig will tip forward
- how much torque acts on the operator
- how balanced the setup is
Enginerig estimates the perceived weight experienced by the operator, not just the physical mass.
The model combines:
- physical mass
- center of mass displacement
- biomechanical tendon model
This allows estimating operator fatigue during long shooting sessions.
The program calculates rig imbalance as a percentage:
| Imbalance | Meaning |
|---|---|
| 0–20% | Excellent balance |
| 20–50% | Slight imbalance |
| 50–100% | Noticeable tilt |
| 100–200% | Heavy front/back pull |
| 200%+ | Shoulder strap or support recommended |
Enginerig calculates load applied to nodes such as:
- quick release plates
- joints
- pivot points
- mounting adapters
This helps answer questions like:
- Will my quick release break?
- Is my mount overloaded?
- How much force acts on the joint during movement?
The software also includes dynamic load simulation (+40%) to approximate forces during walking.
All calculations update instantly when you:
- move points
- change weights
- modify connectors
- change the support point
This allows quick experimentation with rig designs.
Enginerig can export:
- Rig diagram → JPG / PDF
- Rig composition → PDF
- Rig data → copy to clipboard
The exported composition includes:
- all rig elements
- weights
- connector lengths
- comments
- construction relationships
Enginerig supports 11 languages:
- English
- Russian
- German
- Spanish
- French
- Portuguese
- Italian
- Polish
- Ukrainian
- Chinese
- Japanese
Enginerig is built with:
- Electron
- HTML5 Canvas
- JavaScript
- KaTeX (math formulas)
- jsPDF
- html2canvas
The file contains:
- points
- connectors
- nodes
- weights
- support point
- canvas position
- project name
The format is JSON-based.
Enginerig can be used for:
Design a rig before physically assembling it.
Estimate load on mounts, adapters, and joints.
Find the best position for accessories and handles.
Estimate how tiring the rig will be during shooting.
Understand physics concepts like:
- center of mass
- torque
- load distribution
| Action | Method |
|---|---|
| Create point | Left click on canvas |
| Create connector | Click point → click another point |
| Create node | Click connector |
| Move element | Drag |
| Delete element | Right click |
| Undo | Ctrl+Z |
| Hide labels | Ctrl+R |
Camera rigs are often built by intuition.
But heavy lenses, monopods, and accessories create complex torque systems.
Enginerig provides a simple engineering tool to analyze these systems visually.
Instead of guessing, you can calculate rig balance and load before shooting.
Open source project.
camera rig calculator
rig balance calculator
camera rig weight distribution
center of mass calculator
camera mount load calculator
rig torque calculation
handheld camera ergonomics
monopod rig analysis
- Enginerig — Herr Designer.
- UI icons: Lucide Icons (ISC License).
- Math rendering: KaTeX.
camera-rig rig-calculator rig-balance camera-rig-design center-of-mass weight-distribution camera-engineering filmmaking-tools camera-rig-analysis ergonomics physics-simulation camera-rig-calculator camera-mount-load