When you want to test a new product, you face a classic dilemma: you need a part that works like the final product, but you don’t want to invest in expensive dies, molds, or other mass production tools right away. The project is still in motion, concepts are changing from week to week, and ordering tooling at this point is a risk of wasting time and budget. Added to this is the uncertainty of whether the target process will actually work as you expect. Many manufacturers lose months and a large part of their project budget at this stage.

That is why a prototype in replacement technology offers such a significant advantage, especially when you are working with a partner who has their own tool shop, designers, and machine park capable of replicating the function of a part without the need to build the final tools.

How the Prasmet solution works: substitute technology

At Prasmet, prototyping is not an add-on to the offer – it is part of a process that combines design, manufacturing, and testing in one place. Substitute technology allows you to create a functional prototype quickly, without expensive tooling, using what the company already has “at hand”: CNC centers, milling machines, EDM machines, automatic lathes, as well as full design facilities.

Our own design office manages the project from the first 3D model to the final detail. Designers work literally five steps away from the machines, so changes are implemented immediately, without trips between subcontractors. This eliminates errors, shortens time, and reduces stress on both sides.

At this stage, the prototype does not have to be made using exactly the same technology that will be used in mass production. The important thing is that it works, has the right geometry and tolerances, and allows testing. And Prasmet can achieve this very quickly, thanks to its tool shop and capabilities that would normally require cooperation with three different suppliers.

If you want to learn about the full range of possibilities, take a look at the Technological Processes section – these are exactly the technologies that are also used in prototyping.

Real business benefits

The benefits are simple but powerful. First, you save money. The cost of ordering the final tool before testing the concept is enormous, and every mistake multiplies that cost threefold. A prototype in replacement technology allows you to enter testing without risk.

Second, you gain time. The entire process from design to finished product takes less time because everything happens in one company. If the design needs changes, iteration takes hours, not weeks. This is especially important in industries where implementation windows are short and pressure is mounting.

Thirdly, you gain flexibility. When a prototype reveals a weak point in the design, it can be corrected almost immediately. You don’t have to put the entire project on hold or negotiate new deadlines with subcontractors.

And if you move into mass production over time, Prasmet can take care of the entire process: from tooling to quality control and assembly. This is where CNC turning machines such as the Tornos GT13 come in handy, allowing you to mass-produce even the smallest and most demanding parts.

See also the full range of assembly and machining services that can follow on from the prototyping stage: Additional machining services.

What makes Prasmet stand out?

The company works for the automotive, electronics, and robotics industries, where accuracy and repeatability are the norm, not “you’ll be satisfied.” Prasmet has its own R&D, quality control at every stage, and a measurement laboratory where details are checked with the accuracy expected by global automotive brands.

This is why prototypes made with replacement technology have real value—they are not “concept models,” but functional components that are suitable for testing, trial assembly, or tool verification.

If you want to see what component control looks like, take a look at the Measurement Laboratory tab.

Why does it work?

Because everything happens in one place. No data transfer, no multiple suppliers, and no risk of someone “along the way” misunderstanding something. Prasmet combines a machine park (over 100 devices), a tool shop, design, and quality control. This shortens implementation time and ensures that the final product will be created in accordance with the design specifications.

And when the time comes to move to mass production, the tools can be created immediately on site, led by the same engineers who created the prototype.

What’s next for your project?

A prototype using replacement technology is the best way to test your concept without risk, cost, or long waiting times. Prasmet gives you an advantage here: on-site designers, a tool shop, a laboratory, and people who have been making parts for global brands for 20 years. You get a quick start, solid data, and the knowledge that subsequent iterations will be produced just as quickly.

If you want to test your project without investing in tools, now is a good time to discuss the details. Prasmet will support you from the sketch to mass production.

Q&A

How does a prototype in replacement technology work?

It is a phased reproduction of the final detail, made without ordering the target tooling. Prasmet uses available machines to create a functional prototype ready for testing.

Why is replacement technology cheaper?

Because you avoid the cost of tools. Only when the design is certain is it worth building dies or molds.

Can a prototype made using this method be tested in real conditions?

Yes – the functionality and geometry are reproduced so that the prototype can be used, assembled, and tested normally.

When is it worth moving from prototype to series production?

When tests show the stability of the design. At Prasmet, further stages, including tooling, can start immediately.