Straight scaffold
⏱ 5 minTwo points 8 m apart, 2 storeys. The simplest case — perfect to get started.
Blender add-on · Open source · MIT
3D scaffolding ready
for real job sites
Design, analyse and export professional CAD drawings of multidirectional scaffolding from Blender. Built-in compliance with EN 1993-1-1 and EN 12811.
EN 1993FEMA3 DrawingTubular scaffoldRinglockEurocode
421
Automated tests
5 min
First scaffold
EN
Eurocode + 12811
Who is it for?
Built for people who work on real job sites
Four profiles that already use it to solve real problems.
Structural engineers
EN 1993-1-1 + EN 12811 verification built in. No separate Excel, no external consultant for every project.
Site foremen
Exact tonnage and m² before material moves. Printable BOM for the site office.
Rental companies
Quote a full order with the Layher Allround catalogue on a single call. What used to take a morning now takes minutes.
Engineering students
Open source, MIT, free. Learn EN 1993 with real cases instead of abstract standard PDFs.
FeaturesBuilt by and for
Built by and for
scaffolding professionals
Geometry, analysis and documentation in a single tool. No fighting with CAD or with the standards.
Parametric geometry
Define the path with 3D points and the add-on generates standards, ledgers, braces, decks, stairs and trapdoors. Supports straight, L-shaped, U-shaped scaffolds and closed towers.
FEM structural analysis
Verification per EN 1993-1-1 (cross section + buckling) and EN 12811-1 (deflection). Service loads Q1–Q6, zoned wind, imperfections and guardrails.
Standards-compliant CAD
Export to multi-sheet A3 HTML/SVG complying with UNE-EN ISO 129-1: dimensions in mm, standard scales, A/B/C — 1/2/3 grids, partition by spans.
Layher Allround catalogue
Ringlock EU system built in: real decks, lengths and nodes from the manufacturer. Semi-rigid K_φ verification at joints (Annex E EN 1993).
Iterative auto-correction
If the analysis fails, the add-on tries design changes (more braces, segmented standards, shorter spans) until compliance is reached. ANSYS-optimizer style.
BOM + HTML report
Bill of materials by category (weight, length, count) plus a professional report with executive summary, 3D views and narrative diagnosis of every critical element.
Examples
Three real-world cases
From the simplest setup to a 4-storey façade with ties. All generated with the add-on in under 10 minutes.
L-shaped façade
⏱ 8 minThree points forming a 90° corner. The add-on computes the bisector and generates a dedicated corner deck.
4 storeys + ties
⏱ 10 minFaçade maintenance with EN 12811-2 ties. Every 2 bays × 1 storey to meet the minimum density.
How it works
5 steps · 5 minutes
From zero to a professional scaffold with CAD drawing and structural verification — no Excel, no AutoCAD.
Place points in space
Create two or more empties in Blender that define the scaffold path. They can form a line, an L, a U or a closed ring.
Configure dimensions
Depth (Layher 73 / 109 or custom), number of storeys, height per storey. Layher Allround length catalogue or 0.5 m multiples.
Press Generate
The add-on creates standards, ledgers, decks, guardrails, stairs with trapdoors, bracing and rosettes with a single click.
Analyse and verify
Configure loads (Q1–Q6, wind, imperfections), press Run and get the green/amber/red traffic light. Clickable list of critical elements with narrative diagnosis.
Export documentation
Multi-sheet A3 CAD drawing with standards-compliant dimensions, bill of materials (BOM) and HTML report with 3D views for client or building inspection.
Why it pays off
Exact tonnage before site, quote in minutes
Designed for scaffold rental companies that need to quote quickly, and for site managers who need to know how many tonnes and m² they'll erect — before placing the order.
For rental companies
Quote a full order while you're on the phone with the client
Instant BOM with parts, weight and linear metres. What takes a sales rep a morning, you close on a single call.
Compare configurations to see which works out best
More braces vs shorter bays vs more storeys. Press Generate, see the BOM, decide on the spot.
Layher Allround catalogue built in
The BOM matches your real inventory, not generic parts that won't fit later. Manufacturer-real decks, lengths and nodes.
For site managers
Exact tonnage and m² before buying material
No more padding the order "just in case" or discovering the overrun at the end. The BOM gives you weight, length and count for every part.
EN 1993 / EN 12811 validation before material moves
If the scaffold doesn't pass, you see it in the office. Fixing a problem on site, with material already up, costs orders of magnitude more.
Traceability for inspections and audits
HTML report with analysis, A3 CAD drawing and BOM, ready to file. No rebuilding documentation by hand for every audit.
What you stop paying and what you gain
- No commercial CAD software licences.
- No external structural consultant for EN 1993 / EN 12811.
- When the client changes the scope, you recompute and redo the quote in minutes — not days.
Try it on your next quote
Coming from the construction world?
You don't know Blender. That's fine.
If you work with AutoCAD, Excel and DWG, this add-on turns Blender into a familiar tool for designing scaffolds. You don't need to learn the whole software.
What is Blender
Free open-source 3D modelling software (think AutoCAD but open source). Used in film, architecture and engineering. Here we use it to generate parametric scaffolds with structural analysis.
Why open source
No yearly licences. No expiration. No forced migration every 3 years. Runs on Windows, macOS and Linux. A company can install it on 50 PCs at no cost — and remain legally correct on commercial projects.
Required hardware
A regular office PC is enough: 8 GB RAM, integrated GPU, modern processor. No workstation needed. No scaffold from the add-on exceeds 50 MB of geometry — light compared to a Navisworks model.
Learning curve
With this add-on, scaffolds don't require knowing Blender. You place points in space, press Generate, and get the model + CAD drawing + structural analysis. The add-on UI is a plain panel — no 3D jargon.
Step-by-step tutorial
There's a guided in-Blender tutorial (overlay with arrows) and a self-contained HTML tutorial with 5 real recipes. Both are written for site engineers, not 3D artists.
Compared to what you already know
AutoCAD / Revit
Andamios + Blender
Yearly licence ~2,000 €/yr
Free · MIT
Scaffolds = lots of manual drawing
Scaffolds = 5 minutes parametric
Analysis in separate Excel
EN 1993 + EN 12811 analysis built-in
Static DWG/PDF
A3 CAD drawing + BOM + HTML report
Blender 5.1 and later. PyNiteFEA (the structural analysis module) installs automatically when you enable the add-on for the first time — no commands needed.
Download
Get started now. It's free.
Open source, MIT, no account or email required. Runs on Linux, Windows and macOS on Blender 5.1 or later.
After installing you'll have:
- ✓Parametric 3D scaffold in 5 minutes
- ✓EN 1993 + EN 12811 verification built in
- ✓A3 CAD drawing ready to print
- ✓BOM with weight, linear metres and parts
- ✓No licences, no subscriptions
1 · Download
The button above downloads a single .zip file, ready to install.
2 · Install
In Blender: Edit → Preferences → Add-ons → Install… and pick the .zip.
3 · Activate
Tick the «Andamios trayectoria» checkbox and open the Andamios tab in the sidebar (N key).
421 tests greenMIT licenceNo telemetry