Solder paste dispenser A

This is an electric solder paste dispenser for soldering SMT boards, inspired by http://www.thingiverse.com/thing:384680. The project's main directory is located on github at https://github.com/zapta/misc/tree/master/paste_injector which includes the hardware and firmware design of a compatible controller board that works with Arduino (it is similar to the Arduino IDE) as Arduino Pro Mini).

Schematic: https://github.com/zapta/misc/raw/master/paste_injector/eagle/paste_injector_schematic.pdf

BOM: https://github.com/zapta/misc/blob/master/paste_injector/eagle/paste_injector_bom.csv

EEVBLOG discussion: http://www.eevblog.com/forum/reviews/solder-pasteflux-manual-syringe-applicator/150/

The circuit diagram is based on that of other DIYers. The circuit board shape has been changed and the circuit and code have been verified. The casing has not yet been designed and printed. You can buy the point machine at a certain treasure, please pay attention to the arrangement of the lines.

Arduino_Motorized_SMT_Solder_Paste_Dispenser.zip in the attachment is a shell designed by the author, which can be modified according to your own needs.