mentec® is a manufacturer of individual plastic housings for electronic devices. Many of these applications come from the measuring instruments and medical technology. However, computer-based appliances are also an application for professional plastic enclosures from mentec®. We advise our customers in detail and allow from the individual plastic housing prototype to the small series and series production our housing any application that is possible with our patented K-Box® technology.


The startup hype in Germany continues. Commercialisation of the Internet in recent years through the Internet of Things has led to the development of many new business models with small electrical appliances. So-called IoT devices are easily and permanently connected to the Internet through uplink and W-LAN. Wherever Internet access is available, IoT devices can be used, from the autonomous webcam, home control centre for household and energy monitoring to smart assistants such as Amazon’s Alexa or Apple’s HomePod. All these devices contain electronic components that were packed into a plastic housing prototype at the beginning of their lifetime.

Why is a plastic housing prototype required?

The typical story of a plastic housing prototype is a start-up that has created an electronic product. During the next stage, investors are often needed to get the product ready for series production, and launch it. The developer cannot just present an investor with a circuit board, as it shows that the product is unfinished and not packaged ready for the market. Therefore the device requires an attractive, professional plastic housing. Often at this stage the developer cannot foresee whether the product will eventually go into large-scale production, whether it will remain in small pre-series or even just the one prototype.The first thought when considering a housing is a plastic housing made of injection molding. However, this type of plastic housing construction is expensive. For tool construction alone, i.e. merely the creation of the production molds, costs are high and can quickly escalate into 5-figure Euros sums.

Your plastic housing could look like this prototype - made by mentec

Production of a plastic prototype with K-Box® technology

With its patented K-Box® technology, mentec’s® aim is to manufacture plastic housings of the highest quality and workmanship from prototype to series production at a reasonable price. The plastic housing prototype must be of high quality to convince a potential investor or end customer of the value of the device.
The production of the plastic housing prototype paves the way for small or medium series of the product. mentec® saves all details of the production process electronically, making it simple to reproduce the housing any number of times. There is another advantage of prototype production with K-Box® technology: in contrast to injection molding based housing production, subsequent modifications such as the addition of ventilation slots to series-produced housings can be made easily, so the original investment for the design of the prototype is not lost.

What data do we need for a plastic housing prototype?

For mentec® to produce a plastic housing prototype for you, you will need to provide us with important relevant information. The following is the list of details needed from you in order for mentec® to prepare a quotation:

  • For which application is the desired housing required (indoor/outdoor, UV resistance, water resistance)?
  • Current customer drawings: do you have sketches and drawings relating to the desired housing? We process electronic files such as 3D construction formats (STEP or CAD data). Sketches or pictures are also possible.
  • Housing samples: are housing samples or built-in components already available?
  • PCB samples / built-in parts: in order to plan the inner part of the housing, original PCB samples and/or built-in parts are very helpful in the construction of the plastic housing prototype, ideally as a 3D file.
  • Weight: the sum of the weights of all built-in components plays an important role before the start of the construction.
  • Dimensions: please specify width x height x depth in mm
  • Material: we have a wide range of base materials at our disposal – whether impact-resistant polycarbonate (PC) or polystyrene (PS), also in UL94-V0 class./li>
  • Colour: what colour should your housing be? Standard RAL colours as well as different special colours are available.
  • Additional parts & special parts
  • Printing (screen printing / digital printing) & varnishing

Building a plastic housing prototype

We will be happy to advise you on your requirements for a plastic housing prototype – just contact us.

Formschönes Raspberyy Pi Gehäuse aus Acrylglas mit Druck

Since its launch in 2012, the Raspberry Pi has rapidly become a real phenomenon on the software and hardware development scene. With over 17 million units sold, the Raspberry Pi can truly be compared to one of the most successful home computers in the world, the Commodore 64. What is behind this device and what professional uses does it have? This article explains what the Raspberry Pi actually is, the applications and benefits of the Raspberry Pi, and demonstrates how mentec®, as a professional plastic housing manufacturer, can support you in your Pi project with the creation of an individual Raspberry Pi case. What if you had developed a fantastic application with Raspberry Pi but no one was producing an individual housing solution for it as a prototype case, small or medium series?

What is the Raspberry Pi?

The Raspberry Pi is a mini-computer. To be precise, it is a single board computer, which means that all components of the computer, such as CPU, RAM, GPU, etc. are on a single circuit board. Single board computers are often used for consumer purposes or industrial devices where space saving and energy consumption are important.

Individual Raspberry Pie housing with imprint
The Raspberry Pi provides an extensive range of accessories such as cameras, touch displays or simple LCD displays for presenting information. These add-on components pose a complementary challenge when designing for a Raspberry Pi housing.

What professional applications are there?

The Raspberry Pi is regarded as a toy. Using it as a game console emulator with RetroPie or its support of the children’s programming language Scratch reinforces this image. On the other hand, there are a multitude of serious and professional applications which have a Raspberry Pi hidden inside. Two professional applications are presented here. In particular the Raspberry Pi offers innovative startup companies a cost-effective way to integrate a fully-fledged PC into their hardware appliance. It does not matter whether this is a router, firewall or a Smarthome application. The usage possibilities are almost endless.

eBlocker: anonymous web surfing based on Raspberry Pi

Internet companies like Google, Facebook & Co. permanently collect unlimited information about their customers and their behaviour on their sites and beyond. This data is primarily used for their purposes, but always has one goal: to create added value for the platform operators. Ultimately this means that the Internet user is becoming more and more transparent in all areas. To prevent this, the eBlocker appliance helps to surf the Internet anonymously, all thanks to a Raspberry Pi or alternatively the Banana Pi in a plastic housing.

PixTend SPS control technology

SPS technology is a common industry standard. The abbreviation SPS stands for Programmable Logic Controller. These systems are frequently installed in remote control and monitoring systems based on proprietary technologies. The Pixtend extension for Raspberry Pie allows the connection of sensors for temperature or humidity, servos, radio sockets, etc. The usage options are almost endless. Existing bus systems can be connected via the integrated RS232 transceiver. This offers the hobbyist and inventor a wide range of possibilities.

What kind of Raspberry Pi housings & plastic housings does mentec® offer?

The examples mentioned above are just two of many technical options. The Raspberry Pi is easily accessible and offers countless possibilities due to the open, Ubuntu-based LINUX operating system. We at mentec® make sure that the technical Raspberry Pi product is embedded in the appropriate plastic housing. We offer tailor-made solutions in any form.

Individual Rasperry Pi housing stacked 3 times

It is no problem, whether a display is assembled or other peripherals such as the Pixtend system are docked. We build the prototype for your plastic housing or create the Raspberry Pi housing in small or medium sized batches.

Custom case for Raspberry Pie with two mounting tabs

We supply individual digital or screen printed housings, as well as milled logos, mounting tabs and a wide variety of suitable housing accessories.