Following the TRIZ principles, we threw everything unnecessary out of the mechanism and strengthened all the common weak points of pens. Our mechanism has one of the lowest frictional coefficients among all pens with vertically positioned engines in the world and, as a result, one of the highest efficiency coefficients.
In practice this means that a relatively small motor can transfer much more power to a cartridge than other pens.
Combined with a very light, almost inertialess mechanism without excessive friction and springs, the motor revealed its full potential at a wide rpm range and allowed artists to feel the skin better in order not to damage it too much.
It also contributes to an increase in the engine service life. The mechanism is well-balanced, which provides minimal vibration despite its light weight. We took into account all the weak points of pens and strengthened them. There are two Japanese bearings in the mechanism instead of one. And in order to protect two bearings in the motor, an additional bearing was installed. There are thus five fine bearings installed in our pen.
The mechanism is designed in such a way that it is returned to its initial position not by the spring, but by the motor itself. This helps prevent the delay in the needle going out of the skin when using cartridges with a soft membrane and allows to work at low speed even with cartridges with a very hard membrane.
The only disadvantage of this mechanism is a bit more noise compared to classic pens, but this noise is barely audible and is not a malfunction.
The stroke is 3.5 mm, but due to its mechanism, the pen works with shadows as softly as if it had a 2.7-3.5 mm stroke and makes steady outlines as if it had a 3.7-4.2 mm stroke.
After a year of testing, we have perfected this mechanism and we are truly proud of it.
It is simple, reliable and efficient just like an AK-47.