Application With Impact-modified HOSTAFORM® POM
Everyone has heard about it or even experienced it personally – a Trojan gets installed on your laptop, and that tiny, inconspicuous webcam built into the device secretly captures everything that goes on in front of it. Now Bornbex, a Berlin-based company, has effectively shut the door on such activity. The thin-walled component was made with impact-modified polyoxymethylene copolymer (POM) HOSTAFORM® for longevity.
“The weld line strength is outstanding, with just the right stiffness to allow the Camstop to mould to the laptop. And even with its minimal wall thickness of less than 1 mm, the component is easy to fill”,
says Peter Mack, Production Manager at Gallardo.
To protect against uninvited observers, many PC users have resorted to covering their webcam lens with sticky tape. It’s an easy fix, but not pretty to look at – and over time, the adhesive can damage the lens it’s covering. So Jens Fortmann and Axel Merges decided to come up with a more elegant solution to the problem. And they developed Camstop – a small, thin device that discreetly fits over the webcam and slides open and closed at the touch of a finger. To manufacture the component, the company chose to partner with Gallardo Spritzgusstechnik GmbH from Eppingen-Mühlbach, Germany.
And Peter Mack, Production Manager at Gallardo, was happy to take on the project. The Camstop comprises two injection-moulded parts that must be assembled in a nested configuration.
As the sliding door is mounted in the housing, the component is subject to significant deformation. When put to the test, the material originally selected ended up breaking along the weld line during assembly.
This prompted Peter Mack to contact his raw materials supplier, the Hamburg-based plastics distributor K.D. Feddersen, for a materials consultation. K.D. Feddersen application engineer Jürgen Gessner recommended HOSTAFORM® S 9363, an impact-strength-modified POM from Celanese, for the application. From the very first sampling, this proved to be the material of choice.