An-Najah National University
Faculty of Engineering
Electrical Engineering Department
Graduation Project 2 (63569)



CNC ROUTING MACHINE



                     Instructor: Dr. Samer Mayaleh

Prepared by: Mohammed Samaneh.
                                            Mohammed Masoud. 
 



CNC TECHNOLOGY
 

Computerized Numerical Control:


   Using computer to control operation of machine tools via specially coded instructions.



CNC MACHINE IMPORTANCE

CNC machine can improve a lot of manufacturing fields in Palestine.

CNC machine can reduce importing from outside cause it can produce needed pieces.

National CNC machine can save people money cause no need to spend on charge it from outside.
 




A LOT OF APPLICATIONS













OVERVIW



MECHANICAL DRIVE


How to convert rotational movement of motor into translational movement ?




MOTORS

SERVO   vs.   STEPPER




MOTORS


Servo: closed loop, higher resolution & complex drive.


Stepper motor: open loop, enough resolution & simple drive.



Uni-polar stepper motors have two coils/windings per phase.






Bipolar two-phase stepper motors have one winding per phase.





TORQUE ISSU 

An 8 wire NEMA 23 stepper motor may produce:

305 oz-in using uni-polar driver 

425 oz-in using bipolar driver 


 (1 oz-in = 0.0070 N-m)



STEPPING MODES

            Wave step

                                        Half step

           Full step






HALF STEP 
FULL STEP
WAVE STEP


MACHINE RESOLUTION 

One revolution (200 steps) ………… 2.0 mm

Quarter revolution (50 step) ……… 0.5 mm


0.01 mm per step




MECHANICAL STRUCTURE





Z-AXIS OF THE MACHINE





Y-AXIS OF THE MACHINE





X-AXIS OF THE MACHINE






CNC SYSTEM




DRIVE CIRCUIT



0


SCHIMATIC OF DRIVE CIRCUIT





PCB OF DRIVE CIRCUIT









SOFTWARES







CAD SOFTWARE






CAM SOFTWARE






























G CODE





MACH3 SOFTWARE





MOTOR OUTPUT





INPUT SIGNALS




MOTOR TUNING





FINAL RESULT




THANK YOU 
FOR LISTENING


image1.jpeg

image2.jpeg

image3.jpeg

image4.jpeg

image5.png

image6.jpeg

image7.png

image8.jpeg

image9.png

image10.jpeg

image11.jpeg

image12.png

image13.png

image14.png

image15.png

image16.png

image17.jpeg

image18.jpeg

image19.jpeg

image20.jpeg

image21.png

image22.jpeg

image23.png

image24.png

image25.jpeg

image26.jpeg

image27.jpeg

image28.jpeg

image29.png

image30.png

image31.png

image32.png

image33.png

image34.png

image35.png

image36.png

image37.png

image38.png

image39.png

image40.png


/docProps/thumbnail.jpeg