You can select the steps taken, and control the output using a little joystick. A home-made linear actuator (threaded rod and nut) allow you to dispense any syringe-based solder paste, glue ...

Dispensing solder paste onto one board is easy enough with a syringe or toothpick ... The machine they used was a Type A Machines printer with a solder paste dispenser in place of an extruder.