kossel 2020 bowden arm

pinshape

This is a basic Bowden arm for a Kossel, with the spring cup diameter measuring 11mm. To prevent filament binding, I recommend using a V-wheel in conjunction with a small piece of tubing. Alternatively, you can employ a bearing to achieve a smooth filament feed. The force exerted on the spring cup is doubled when it interacts with the wheel, allowing for a safe maximum tension of up to 30lbs. Additionally, consider incorporating one or two washers between the peg and motor to ensure secure operation.