Electric build instruction 

refers to electronics holder photo and wiring diagram. 

1- solder wires to the ESP32 pins as in wiring photo make sure the wires are long           enough to  reach the LCD and the L298 board. 

2- Solder the wire to the LCD board.

3- secure the ESP32(No 1)to the electronics holder with 4 screws. 

4- make sure the wire to the L298 (No 5)board go through wire tunnel (No 4).

5- secure the LCD (No 2)in its position in the electronics holder with 4 screws 

6- solder the wire from the ESP32 to the L298 board. make sure the wires paths              throw the wire tunnel (No 4).

7- insert the motor wires and power supply wires through the hole (No 9).

8- connect the motor wires to connector No7 and connector No8 and power wires to   

    connector (No 6).

9- secure the L298 board in the electronics holder with 4 screws.

10- I used 2 5V DC power supply one for the L298 and the other one for the LCD and ESP32.

Mechanical build instruction 

refers to the Cross section of feeding mechanism photo. 

all the needed STL files for 3D printing are uploaded.  

1-insert one of the bearing(No 4) in the motor base (No 3)

2- insert the rotating helical shaft (No 2)in the same bearing 

3- insert the other end of the rotating helical shaft (No 2)in the other bearing (No 4)

4- insert the bearing (No 4) in the connecting tube (No 1) align the screw holes of               the  connecting tube (No 1)with the screw holes in the motor base (No 4).

     use 4 screws and 4 nuts to fasten the 2 parts as in the photo.

5- slide the motor shaft extension ( No 6) to the rotating helical shaft (No 2)

6- connect the motor shaft extension (No 6) to the stepper motor. use 4 screws and         nuts to fasten the motor to the motor base.

7- slide the base bracket (No 7) in the dove tail slot in the motor base (No 3)

8- screw the mounting screw (No 9) to the side bracket (No 8).

9- slide the side bracket (No 8) in the dove tail slot in the base bracket (No 7).  

10- slide the food funnel (No 5) in the connecting tube (No 1).   

11- slide the electronic holder in the electronics grove (No 11).