| Knapsack was founded at 2002 as an alternative device to all known fucking machines. The idea was to make machine compact and attached to the body. So it became a wearing on device. It has received the form of knapsack when it appeared, that knapsack may be wearing not only on shoulders, but even much lower. Belts were placed around waist and legs. While testing the Knapsack appeared very convenient, even more than it was programmed. It became possible to wear it in different positions: lying, standing, sitting, doggy, etc. On back and on stomach. And even to use it in motion, walking and dancing. The length of cable allows free movement in big enough area. Sound of motor doesn't prevent to music. Weight of device is not heavy. So, the Knapsack became real... and wonderful! |
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The initial design of Knapsack had horizontal spinning eccentric disc with different eccentricity holes.
But the development of design result in vertical crank rotation with fixed eccentricity. The levers
mechanism was improved and new, more compact and powerful motor is used now. Knapsack has shown it convenient as a stationary machine, attached to some subject, such as chair or table. It is easy to attach and very transformable. It allows many different positions, height of installation, horizontal and vertical directions. The design of levers was changed to allow more Knapsack transformations. New development make it possible to upgrade Knapsack to spanking version, with flexible plastic "arm". The compactness of Knapsack allows to use it in combination with other fucking machines or "not machines". |
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