In most fabrication jobs, material accounts for 30 to 50% of total cost. That makes how you cut your sheets one of the biggest levers you have over your margins. Poor nesting can mean discarding 10 to 20% of every sheet you buy. Good nesting can push sheet usage above 85%.
That’s where SigmaNEST software comes in. It’s the nesting and CAD/CAM platform that fabricators worldwide rely on to get more parts from every sheet, programme machines faster, and keep the full cutting workflow connected. Whether you’re running a single plasma table or a multi-machine operation with lasers, waterjet, and punching, SigmaNEST gives you one platform to manage it all.
This post walks through what SigmaNEST does, who uses it, and what kind of results it delivers in practice.
What Is SigmaNEST and Who Uses It?
SigmaNEST is CAD/CAM nesting software that optimises how parts are arranged on sheet material before cutting. Fabricators, steel service centres, router shops, furniture makers, boat builders, and OEMs use it to reduce scrap, speed up programming, and drive nearly every type of profile cutting, routing, or punching machine.
The software is used by fabricators, manufacturers, and steel service centres across the metal cutting industry, but it also serves shops working with wood, composites, glass, and stone. That versatility is one reason why SigmaNEST has grown to over 21,000 installed systems worldwide.
At the heart of SigmaNEST is the HD SuperNest engine. This is a time-based intelligent nesting algorithm that doesn’t just generate a single layout. It continuously tests and accepts improved configurations within a set time interval. If it finds a tighter arrangement within, say, 10 seconds, it keeps it and starts again. The result is higher material yield without slowing your programming workflow.
You can explore the full SigmaNEST product range to see how the core nesting engine connects to the broader suite of fabrication tools.
Nesting: The Core of What SigmaNEST Does
Nesting is the process of arranging parts on a sheet to minimise wasted material. It sounds simple, but doing it well is surprisingly complex. You need to account for part geometry, material grain direction, kerf width, lead-ins, clamp zones, remnant tracking, and the specific constraints of each machine.
Manual nesting, where a programmer drags parts around on screen or lays them out by eye, typically achieves 60 to 70% material usage. Automated nesting software pushes that to 82 to 90%. On a busy shop floor processing thousands of sheets a year, that gap adds up fast.
SigmaNEST’s automatic nesting uses part rotation, mirroring, and part-in-part nesting to fill gaps that manual methods miss. It also supports remnant nesting, which tracks leftover sheet pieces in a database and prioritises using them before cutting fresh stock. This first-in, first-out approach keeps inventory lean and prevents usable remnants from piling up in the corner of the shop.
Common-line cutting is another feature that experienced fabricators rely on. When two adjacent parts can share a single cut edge, the software shares the cut line between them automatically. This eliminates the material that would otherwise be lost to a second parallel cut, reducing pierce points and shortening cycle times. For a deeper look at how these strategies work in practice, read our guide on production efficiency with SigmaNEST.
What Machines Does SigmaNEST Support?
SigmaNEST programmes nearly every type of profile cutting machine: laser, plasma, oxyfuel, waterjet, punch, router, knife, and bevel cutting equipment. It’s machine-agnostic, which means fabricators can run their entire floor from a single software platform regardless of machine brand.
This is one of SigmaNEST’s biggest practical advantages. Many machine OEMs bundle proprietary nesting software with their equipment. That works fine if you only have one machine. But as soon as you add a second brand (or a different cutting process), you end up with separate software systems, separate programmers, and no shared workflow.
Tampa Bay Steel ran into exactly this problem. As they grew to a 220,000-square-foot operation with lasers, HD plasma, flame, and waterjet machines, each cutting process used its own proprietary CAM package. Programmers were locked to single machines, and flexibility suffered. After switching to SigmaNEST, any programmer could drive any machine. As their Engineering and Estimating Manager explained, they chose SigmaNEST specifically because they didn’t want future machine purchases to force new software.
For South African shops running mixed equipment, this flexibility matters. You can check our customer success stories for more examples of how fabricators have consolidated their programming onto SigmaNEST.
Beyond Nesting: The Full SigmaNEST Suite
SigmaNEST is often known for nesting, but the software suite extends well beyond part layout. It covers the full fabrication workflow, from quoting through to shipping.
SigmaTUBE handles tube and pipe nesting within SOLIDWORKS, supporting laser and plasma cutting of tubes in any profile shape. SigmaBEND is a 3D press brake programming tool that optimises bend sequences and tooling selection, complete with full simulation so operators can verify setups before bending. These modules bring the same optimisation logic that SigmaNEST applies to flat cutting into tube processing and forming.
On the business side, SigmaMRP is a manufacturing resource manager that tracks inventory, customer and supplier data, job status, and quoting from one central location. It connects directly to SigmaNEST, so the data your programmers generate (part counts, material usage, cut times) flows straight into job costing and scheduling without re-entry.
SimTrans automates work order tracking and real-time data transfer between SigmaNEST and your existing ERP system. For shops looking to reduce manual input and move toward lights-out operation, this is a critical link. Phenix Construction Technologies, a structural steel manufacturer processing 72,000 metric tons annually, used SigmaNEST to eliminate spreadsheet-based part tracking and unify their nesting, manufacturing, and data management across a diverse machine park.
Color Offload and Load Manager round out the shop floor tools. Color Offload uses colour-coded part identification to simplify sorting after cutting. Load Manager handles workload distribution and machine scheduling. Together, they reduce the confusion and bottlenecks that slow down the space between cutting and assembly.
How Much Material Can SigmaNEST Actually Save?
Most fabricators save more than 4% on material when switching to SigmaNEST, according to SigmaTEK. In steel service centre environments processing multiple grades and thicknesses daily, HD SuperNest can save up to 10% on material and reduce programming time by up to 73%.
Those percentages translate into real money. Industry data shows that premium nesting software typically saves R595,000 to R3.97 million per year in waste reduction, with payback periods between 2 and 14 months. The maths is straightforward: if you spend more than a certain threshold on sheet material each month, the software pays for itself. (ZAR values calculated at an exchange rate of R16.53 to $1 USD at the time of publishing.)
A concrete example: Tosec, a Dutch metal processing company running laser, plasma, and oxyfuel machines, adopted SigmaNEST and achieved approximately 5% annual steel saving credited to HD SuperNest’s iterative algorithm. They also reduced NC code generation from hours to minutes for plates up to 16 metres long. You can read the full Tosec case study for the details.
At the industry level, advanced nesting software can reduce fabrication scrap rates to under 3%, compared to the 10 to 20% waste typical in shops relying on manual methods. For any shop where material is a major cost driver, these savings compound month after month. Our post on reducing material waste with SigmaNEST covers the implementation steps in more detail.
How Does SigmaNEST Fit Into Your Existing Workflow?
SigmaNEST integrates with major CAD systems through direct native file import, including SOLIDWORKS, Solid Edge, Inventor, Creo, Siemens NX, and CATIA. It also reads common formats like DXF, DWG, STEP, and DSTV. This means your designers don’t need to change how they work. Parts flow from CAD into SigmaNEST without conversion steps or lost data.
On the business systems side, SimTrans connects SigmaNEST to your ERP, automating work order imports and feeding production data back upstream. This two-way link eliminates double entry and keeps your scheduling, inventory, and costing aligned with what’s actually happening on the shop floor.
SigmaNEST 25 also introduced a Copilot AI assistant that guides programmers through tasks like CAD imports, geometry editing, and licensing in 19 languages. Sandvik (SigmaNEST’s parent company) reports that the Manufacturing Copilot saves users 20 to 30% of their time on average, with even larger gains on unfamiliar tasks. You can read about the latest version’s capabilities in our post on SigmaNEST V25 features.
MECAD Manufacturing handles the implementation side in South Africa. Our application engineers manage installation, configuration, and integration so that SigmaNEST aligns with your specific machines, post-processors, and production systems from day one.
Getting Started with SigmaNEST in South Africa
SigmaNEST is more than nesting software. It’s a full fabrication platform that connects your cutting, bending, tube processing, quoting, inventory, and scheduling into a single workflow. For most shops, the material savings alone justify the investment. The time savings and workflow improvements are a bonus.
Three things to take away: SigmaNEST’s machine-agnostic approach means you won’t outgrow it when you add equipment. HD SuperNest’s iterative nesting consistently outperforms static or manual layouts. And the broader suite (SigmaTUBE, SigmaBEND, SigmaMRP, SimTrans) means you can extend the platform as your operation grows.
MECAD Manufacturing is the authorised SigmaNEST reseller in South Africa, with offices in Centurion, Cape Town, and Durban. We provide software sales, implementation, SigmaNEST training courses, and ongoing technical support.
Contact MECAD Manufacturing to book a SigmaNEST demonstration, request a nesting benchmark on your own parts, or discuss which modules fit your operation.
