Dispensing solder paste onto one board is easy enough with a syringe or toothpick ... dispensing solder paste directly onto a board. The machine they used was a Type A Machines printer with ...

A home-made linear actuator (threaded rod and nut) allow you to dispense any syringe-based solder paste, glue, or epoxy with great accuracy. Here are some photos to give you a better idea of how ...