With the new Design for Manufacturing analysis from formary, it is now possible to check CAD data for thermoformability in a matter of seconds, allowing potential sources of error to be identified early on before they become costly. Read on to find out what features the DfM software offers and what the Design for Manufacturing principle entails.
Sarah Guaglianone
Updated on August 26, 2026
→ Go directly to DfM Analysis: formary.de/en/3d-services/dfm-analyse
DfM Meaning: Design for Manufacturing, Design for Manufacturability (DfM), or “manufacturing-oriented design,” refers to a design approach in which components are created in such a way that they can be produced easily, efficiently, and cost-effectively while maintaining high quality.
In short: DfM ensures that from the design stage it is clear how the product can be manufactured later on, helping customers save both time and money.
Design for Manufacturing works by checking already during the design phase whether a component is manufacturable. There are clear manufacturing rules and criteria such as wall thicknesses, radii, or moldability:
Design for Manufacturing is based on five key principles that help solve manufacturing issues early in the design phase.
| Design for Manufacturing Principle | Application in the Development Process | Problems Solved by DfM |
|---|---|---|
| 1️⃣ Error prevention in design | Identify and eliminate potential error sources early | Fewer complaints, higher quality |
| 2️⃣ Manufacturing-oriented design | Consider appropriate processes and materials | Improved manufacturability, reduced production costs |
| 3️⃣ Reducing the number of parts | Design with as few individual parts as possible | Less assembly effort, fewer error sources |
| 4️⃣ Standardized components | Use standard parts instead of custom-made ones | Shorter lead times, lower costs, easier sourcing |
| 5️⃣ Modularization of design | Divide components into interchangeable modules | Better maintainability, easier variant production |
Thanks to its core principles, DfM analysis offers numerous benefits:
Find out more about the most relevant Design for Manufacturing rules in Thermoformig in our Whitepaper Manufacturing Feasibility at the Click of a Button.
When designing a plastic thermoformed parts such as plastic covers or plastic containers, this means, for example:
| Thermoforming-Friendly | Critical |
|---|---|
| Generous radii | Sharp corners |
| Sufficient draft angles | Vertical walls without draft |
| Smooth transitions in draw depth | Abrupt changes in draw depth |
| Clearly defined tooling side | Unclear demolding direction |
| Controlled material stretching | Deep, narrow cavities |
| Few undercuts | Continuous undercuts |
| Realistic functional tolerances | Applying injection-molding tolerances across the board |
| Consider trimming early in the design process | Defining trim geometry only after tooling has been built |
Although Design for Manufacturing offers many benefits, there are typical challenges in practice:
Upload your thermoforming part data, and our DfM software will evaluate whether it can be manufactured as designed, or which geometries need to be modified for technical, functional, or cost-related reasons. These modifications can then be carried out either by you or by us.
Here is a guide on how to use the tool:
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ℹ️ It is important to note that you still thouroughly check your construction data to avoid potential errors in the later design.
Design for Manufacturing ensures that your products are manufacturable right from the start. With our free DfM analysis, you can check your design in about 60 seconds—for fewer errors, lower costs, and smoother workflows.
→ Book your demo now!
Design for Manufacturing (DfM) means designing products so they can be manufactured efficiently, cost-effectively, and without errors. The goal is to consider all manufacturing aspects right from the design stage.
