Filament feeding adjustment device

A filament feeding device for use in 3D-printing, wherein said filament feeding device comprises:

• a first feeding wheel configured to rotate with a first rotational shaft,
• a second feeding wheel configured to rotate with a second rotational shaft,
• wherein said first and second feeding wheels are separated by a separation distance so as to allow feeding of a filament material received between said first and second filament wheels,
• and wherein said filament feeding device further comprises an adjuster element configured to move said first rotational shaft relative the second rotational shaft by engaging the first rotational shaft with a cam curve slot, the adjuster element being movable between a first distinct position setting said separation distance to a first predetermined distance, and into a second distinct position setting said separation distance to a second predetermined distance, wherein the adjuster element engages the first rotational shaft with a respective first and second position in the cam curve slot in the first and second distinct position respectively, and wherein said second predetermined separation distance is larger than said first predetermined separation distance, wherein said adjuster element engages said first rotational shaft with said cam curve slot and said adjuster element is pivotable around the second rotational shaft.