7. Using the Droplet Generator

Wear gloves!

1. When everything is assembled and connected, insert the loose end of the outer hose of the reservoir into an empty container. Excess oil will be stored in this container.
2. Next, fill the container until excess oil drips into the overflow container.

3. We need to remove the remaining air in the nozzle component. To do this, press your finger on the opening of the nozzle from which the droplets would emerge to prevent liquid from dripping during the following process. Now turn the nozzle around so that the 3D printer nozzle is pointing upwards and your finger is still resting on it. Lower the nozzle component until it is at a height below the reservoir. Lift your finger and rotate the nozzle clockwise at different angles, while tapping a little on its side. The liquid will spray out, which is not a bad thing. After having done this for a few seconds and the liquid sprays out continuously, put your finger back on the nozzle, turn it around, and reattach it to the magnet.

   Tip: Steps 2 and 3 can always be carried out if there is an air bubble in the nozzle component. You will notice the air either by a different and louder noise from the piezo (a louder "clack") or if, despite a sufficiently long pulse interval, still no droplets are released.

4. The reservoir has probably lost some fluid by now, so make sure to fill it again until it overflows.

5. Lower the reservoir using the bolt on the reservoir until the liquid runs continuously out of the nozzle. Raise the reservoir in small steps until no more liquid runs out of the nozzle - This is the correct height of the reservoir. While lifting the reservoir, keep dabbing the nozzle dry.

6. It is also advisable to configure the pulse interval, which depends on your liquid and the nozzle size. First, set a very low value (e.g. 50) and switch on the "Drop Gen" button. If you do not see drops being released, slowly increase this value (e.g., in steps of 50\mus until you see drops being released.)